Update translatable texts

[skip ci]

.github/renovate.json

@@ -7,7 +7,7 @@
   "schedule": [
     "before 8am on Monday"
   ],
-  "baseBranches": ["develop", "feature/uvicorn"],
+  "baseBranches": ["develop"],
   "pip_requirements": {
     "fileMatch": [
       "requirements.txt",

.github/workflows/build_release.yml

@@ -8,8 +8,18 @@ env:
 
 jobs:
   build_windows:
-    name: Build Windows binary
-    runs-on: windows-2022
+    name: Build Windows binary (${{ matrix.architecture }})
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - architecture: x64
+            runs-on: windows-2022
+          - architecture: arm64
+            runs-on: windows-11-arm
+
+    runs-on: ${{ matrix.runs-on }}
     timeout-minutes: 15
     steps:
     - uses: actions/checkout@v6
@@ -17,15 +27,16 @@ jobs:
       uses: actions/setup-python@v6
       with:
         python-version: "3.14"
-        architecture: "x64"
+        architecture: ${{ matrix.architecture }}
         cache: pip
         cache-dependency-path: "**/requirements.txt"
     - name: Install Python dependencies
       # Without dependencies to make sure everything is covered in the requirements.txt
+      # Special cryptography is due to https://github.com/pyca/cryptography/pull/14216
       run: |
         python --version
         python -m pip install --upgrade pip wheel
-        pip install --upgrade -r requirements.txt --no-dependencies
+        pip install --upgrade -r requirements.txt --no-dependencies --only-binary=cryptography
         pip install --upgrade -r builder/requirements.txt --no-dependencies
     - name: Build Windows standalone binary
       id: windows_binary
@@ -34,8 +45,8 @@ jobs:
       uses: actions/upload-artifact@v6
       id: upload-unsigned-binary
       with:
-        path: "*-win64-bin.zip"
-        name: Windows standalone binary
+        path: "*-win*-bin.zip"
+        name: Windows standalone binary (${{ matrix.architecture }})
     - name: Sign Windows standalone binary
       uses: signpath/github-action-submit-signing-request@v2
       if: contains(github.ref, 'refs/tags/')
@@ -52,19 +63,21 @@ jobs:
       uses: actions/upload-artifact@v6
       if: contains(github.ref, 'refs/tags/')
       with:
-        name: Windows standalone binary (signed)
+        name: Windows standalone binary (${{ matrix.architecture }}, signed)
         path: "signed"
     - name: Build Windows installer
+      if: matrix.architecture == 'x64'
       run: python builder/package.py installer
     - name: Upload Windows installer
+      if: matrix.architecture == 'x64'
       uses: actions/upload-artifact@v6
       id: upload-unsigned-installer
       with:
         path: "*-win-setup.exe"
-        name: Windows installer
+        name: Windows installer (${{ matrix.architecture }})
     - name: Sign Windows installer
+      if: matrix.architecture == 'x64' && contains(github.ref, 'refs/tags/')
       uses: signpath/github-action-submit-signing-request@v2
-      if: contains(github.ref, 'refs/tags/')
       with:
         api-token: ${{ secrets.SIGNPATH_API_TOKEN }}
         organization-id: ${{ secrets.SIGNPATH_ORG_ID }}
@@ -75,10 +88,10 @@ jobs:
         wait-for-completion: true
         output-artifact-directory: "signed"
     - name: Upload Windows installer (signed)
-      if: contains(github.ref, 'refs/tags/')
+      if: matrix.architecture == 'x64' && contains(github.ref, 'refs/tags/')
       uses: actions/upload-artifact@v6
       with:
-        name: Windows installer (signed)
+        name: Windows installer (${{ matrix.architecture }}, signed)
         path: "signed/*-win-setup.exe"
 
   build_macos:
@@ -89,7 +102,7 @@ jobs:
       # We need the official Python, because the GA ones only support newer macOS versions
       # The deployment target is picked up by the Python build tools automatically
       # If updated, make sure to also set LSMinimumSystemVersion in SABnzbd.spec
-      PYTHON_VERSION: "3.14.2"
+      PYTHON_VERSION: "3.14.3"
       MACOSX_DEPLOYMENT_TARGET: "10.15"
       # We need to force compile for universal2 support
       CFLAGS: -arch x86_64 -arch arm64
@@ -167,7 +180,7 @@ jobs:
       matrix:
         include:
           - os: ubuntu-latest
-            linux_arch: amd64
+            linux_arch: x64
           - os: ubuntu-24.04-arm
             linux_arch: arm64
 

.github/workflows/integration_testing.yml

@@ -11,11 +11,11 @@ jobs:
       - name: Black Code Formatter
         uses: lgeiger/black-action@master
         with:
+          # Tools folder excluded for now due to https://github.com/psf/black/issues/4963
           args: >
             SABnzbd.py
             sabnzbd
             scripts
-            tools
             builder
             builder/SABnzbd.spec
             tests

.github/workflows/translations.yml

@@ -30,7 +30,7 @@ jobs:
         run: |
           python3 tools/make_mo.py
       - name: Push translatable and translated texts back to repo
-        uses: stefanzweifel/git-auto-commit-action@v7.0.0
+        uses: stefanzweifel/git-auto-commit-action@v7.1.0
         if: env.TX_TOKEN
         with:
           commit_message: |

README.mkd

@@ -1,27 +1,36 @@
-Release Notes - SABnzbd 4.6.0 Beta 1
+Release Notes - SABnzbd 5.0.0 Beta 1
 =========================================================
 
-This is the first beta release of version 4.6.
+This is the first beta release of version 5.0.
 
-## New features in 4.6.0
+Due to several fundamental changes we decided to
+not just call this 4.6 but promote it to 5.0!
 
-* Added default support for NNTP Pipelining which eliminates idle waiting
-  between requests, significantly improving speeds on high-latency connections.
+## New features in 5.0.0
+
+* Added support for NNTP Pipelining which eliminates idle waiting between
+  requests, significantly improving speeds on high-latency connections.
   Read more here: https://sabnzbd.org/wiki/advanced/nntp-pipelining
-* Dynamically increase Assembler limits on faster connections.
+* Implemented Direct Write to optimize assembly of downloaded files.
+  Read more here: https://sabnzbd.org/wiki/advanced/direct-write
+* Complete redesign of article cache.
 * Improved disk speed measurement in Status window.
 * Enable `verify_xff_header` by default.
 * Reduce delays between jobs during post-processing.
 * If a download only has `.nzb` files inside, the new downloads
   will include the name of the original download.
+* No longer show tracebacks in the browser, only in the logs.
 * Dropped support for Python 3.8.
+* Windows: Added Windows ARM (portable) release.
 
 ## Bug fixes since 4.5.0
 
 * `Check before download` could get stuck or fail to reject.
-* Windows: Tray icon disappears after Explorer restart.
+* No error was shown in case NZB upload failed.
 * Correct mobile layout if `Full Width` is enabled.
 * Aborted Direct Unpack could result in no files being unpacked.
+* Sorting of files inside jobs was inconsistent.
+* Windows: Tray icon disappears after Explorer restart.
 * macOS: Slow to start on some network setups.
 
 

SABnzbd.py

@@ -236,9 +236,7 @@ def print_help():
 
 
 def print_version():
-    print(
-        (
-            """
+    print(("""
 %s-%s
 
 (C) Copyright 2007-2025 by The SABnzbd-Team (sabnzbd.org)
@@ -247,10 +245,7 @@ This is free software, and you are welcome to redistribute it
 under certain conditions. It is licensed under the
 GNU GENERAL PUBLIC LICENSE Version 2 or (at your option) any later version.
 
-"""
-            % (sabnzbd.MY_NAME, sabnzbd.__version__)
-        )
-    )
+""" % (sabnzbd.MY_NAME, sabnzbd.__version__)))
 
 
 def daemonize():
@@ -870,7 +865,7 @@ def main():
         elif opt in ("-t", "--templates"):
             web_dir = arg
         elif opt in ("-s", "--server"):
-            (web_host, web_port) = split_host(arg)
+            web_host, web_port = split_host(arg)
         elif opt in ("-n", "--nobrowser"):
             autobrowser = False
         elif opt in ("-b", "--browser"):
@@ -1280,7 +1275,6 @@ def main():
             "tools.encode.on": True,
             "tools.gzip.on": True,
             "tools.gzip.mime_types": mime_gzip,
-            "request.show_tracebacks": True,
             "error_page.401": sabnzbd.panic.error_page_401,
             "error_page.404": sabnzbd.panic.error_page_404,
         }

builder/constants.py

@@ -16,6 +16,7 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
 import os
+import platform
 import re
 
 # Constants
@@ -43,11 +44,17 @@ RELEASE_VERSION_BASE = f"{RELEASE_VERSION_TUPLE[0]}.{RELEASE_VERSION_TUPLE[1]}.{
 RELEASE_NAME = "SABnzbd-%s" % RELEASE_VERSION
 RELEASE_TITLE = "SABnzbd %s" % RELEASE_VERSION
 RELEASE_SRC = RELEASE_NAME + "-src.tar.gz"
-RELEASE_BINARY = RELEASE_NAME + "-win64-bin.zip"
-RELEASE_INSTALLER = RELEASE_NAME + "-win-setup.exe"
+RELEASE_WIN_BIN_X64 = RELEASE_NAME + "-win64-bin.zip"
+RELEASE_WIN_BIN_ARM64 = RELEASE_NAME + "-win-arm64-bin.zip"
+RELEASE_WIN_INSTALLER = RELEASE_NAME + "-win-setup.exe"
 RELEASE_MACOS = RELEASE_NAME + "-macos.dmg"
 RELEASE_README = "README.mkd"
 
+# Detect architecture
+RELEASE_WIN_BIN = RELEASE_WIN_BIN_X64
+if platform.machine() == "ARM64":
+    RELEASE_WIN_BIN = RELEASE_WIN_BIN_ARM64
+
 # Used in package.py and SABnzbd.spec
 EXTRA_FILES = [
     RELEASE_README,

builder/make_dmg.py

@@ -18,7 +18,6 @@
 import os
 from constants import RELEASE_VERSION
 
-
 # We need to call dmgbuild from command-line, so here we can setup how
 if __name__ == "__main__":
     # Check for DMGBuild

builder/package.py

@@ -35,8 +35,8 @@ from constants import (
     VERSION_FILE,
     RELEASE_README,
     RELEASE_NAME,
-    RELEASE_BINARY,
-    RELEASE_INSTALLER,
+    RELEASE_WIN_BIN,
+    RELEASE_WIN_INSTALLER,
     ON_GITHUB_ACTIONS,
     RELEASE_THIS,
     RELEASE_SRC,
@@ -257,7 +257,7 @@ if __name__ == "__main__":
 
         # Remove any leftovers
         safe_remove(RELEASE_NAME)
-        safe_remove(RELEASE_BINARY)
+        safe_remove(RELEASE_WIN_BIN)
 
         # Run PyInstaller and check output
         shutil.copyfile("builder/SABnzbd.spec", "SABnzbd.spec")
@@ -275,8 +275,8 @@ if __name__ == "__main__":
         test_sab_binary("dist/SABnzbd/SABnzbd.exe")
 
         # Create the archive
-        run_external_command(["win/7zip/7za.exe", "a", RELEASE_BINARY, "SABnzbd"], cwd="dist")
-        shutil.move(f"dist/{RELEASE_BINARY}", RELEASE_BINARY)
+        run_external_command(["win/7zip/7za.exe", "a", RELEASE_WIN_BIN, "SABnzbd"], cwd="dist")
+        shutil.move(f"dist/{RELEASE_WIN_BIN}", RELEASE_WIN_BIN)
 
     if "installer" in sys.argv:
         # Check if we have the dist folder
@@ -284,10 +284,10 @@ if __name__ == "__main__":
             raise FileNotFoundError("SABnzbd executable not found, run binary creation first")
 
         # Check if we have a signed version
-        if os.path.exists(f"signed/{RELEASE_BINARY}"):
+        if os.path.exists(f"signed/{RELEASE_WIN_BIN}"):
             print("Using signed version of SABnzbd binaries")
             safe_remove("dist/SABnzbd")
-            run_external_command(["win/7zip/7za.exe", "x", "-odist", f"signed/{RELEASE_BINARY}"])
+            run_external_command(["win/7zip/7za.exe", "x", "-odist", f"signed/{RELEASE_WIN_BIN}"])
 
             # Make sure it exists
             if not os.path.exists("dist/SABnzbd/SABnzbd.exe"):
@@ -310,7 +310,7 @@ if __name__ == "__main__":
                 "/V3",
                 "/DSAB_VERSION=%s" % RELEASE_VERSION,
                 "/DSAB_VERSIONKEY=%s" % ".".join(map(str, RELEASE_VERSION_TUPLE)),
-                "/DSAB_FILE=%s" % RELEASE_INSTALLER,
+                "/DSAB_FILE=%s" % RELEASE_WIN_INSTALLER,
                 "NSIS_Installer.nsi.tmp",
             ]
         )

builder/release.py

@@ -29,8 +29,9 @@ from constants import (
     RELEASE_VERSION_BASE,
     PRERELEASE,
     RELEASE_SRC,
-    RELEASE_BINARY,
-    RELEASE_INSTALLER,
+    RELEASE_WIN_BIN_X64,
+    RELEASE_WIN_BIN_ARM64,
+    RELEASE_WIN_INSTALLER,
     RELEASE_MACOS,
     RELEASE_README,
     RELEASE_THIS,
@@ -42,8 +43,9 @@ from constants import (
 # Verify we have all assets
 files_to_check = (
     RELEASE_SRC,
-    RELEASE_BINARY,
-    RELEASE_INSTALLER,
+    RELEASE_WIN_BIN_X64,
+    RELEASE_WIN_BIN_ARM64,
+    RELEASE_WIN_INSTALLER,
     RELEASE_MACOS,
     RELEASE_README,
 )

builder/requirements.txt

@@ -1,19 +1,19 @@
 # Basic build requirements
 # Note that not all sub-dependencies are listed, but only ones we know could cause trouble
-pyinstaller==6.17.0
-packaging==25.0
-pyinstaller-hooks-contrib==2025.10
+pyinstaller==6.18.0
+packaging==26.0
+pyinstaller-hooks-contrib==2026.0
 altgraph==0.17.5
-wrapt==2.0.1
-setuptools==80.9.0
+wrapt==2.1.1
+setuptools==80.10.2
 
 # For the Windows build
 pefile==2024.8.26; sys_platform == 'win32'
 pywin32-ctypes==0.2.3; sys_platform == 'win32'
 
 # For the macOS build
-dmgbuild==1.6.6; sys_platform == 'darwin'
+dmgbuild==1.6.7; sys_platform == 'darwin'
 mac-alias==2.2.3; sys_platform == 'darwin'
 macholib==1.16.4; sys_platform == 'darwin'
 ds-store==1.3.2; sys_platform == 'darwin'
-PyNaCl==1.6.1; sys_platform == 'darwin'
+PyNaCl==1.6.2; sys_platform == 'darwin'

context/Download-flow.md

@@ -0,0 +1,39 @@
+## Download flow (Downloader + NewsWrapper)
+
+1. **Job ingestion**  
+   - NZBs arrive via UI/API/URL; `urlgrabber.py` fetches remote NZBs, `nzbparser.py` turns them into `NzbObject`s, and `nzbqueue.NzbQueue` stores ordered jobs with priorities and categories.
+
+2. **Queue to articles**  
+   - When servers need work, `NzbQueue.get_articles` (called from `Server.get_article` in `downloader.py`) hands out batches of `Article`s per server, respecting retention, priority, and forced/paused items.
+
+3. **Downloader setup**  
+   - `Downloader` thread loads server configs (`config.get_servers`), instantiates `Server` objects (per host/port/SSL/threads), and spawns `NewsWrapper` instances per configured connection.  
+   - A `selectors.DefaultSelector` watches all sockets; `BPSMeter` tracks throughput and speed limits; timers manage server penalties/restarts.
+
+4. **Connection establishment (NewsWrapper.init_connect → NNTP.connect)**  
+   - `Server.request_addrinfo` resolves fastest address; `NewsWrapper` builds an `NNTP` socket, wraps SSL if needed, sets non-blocking, and registers with the selector.  
+   - First server greeting (200/201) is queued; `finish_connect` drives the login handshake (`AUTHINFO USER/PASS`) and handles temporary (480) or permanent (400/502) errors.
+
+5. **Request scheduling & pipelining**  
+   - `write()` chooses the next article command (`STAT/HEAD` for precheck, `BODY` or `ARTICLE` otherwise).  
+   - Concurrency is limited by `server.pipelining_requests`; commands are queued and sent with `sock.sendall`, so there is no local send buffer. 
+   - Sockets stay registered for `EVENT_WRITE`: without write readiness events, a temporarily full kernel send buffer could stall queued commands when there is nothing to read, so WRITE interest is needed to resume sending promptly.
+
+6. **Receiving data**  
+   - Selector events route to `process_nw_read`; `NewsWrapper.read` pulls bytes (SSL optimized via sabctools), parses NNTP responses, and calls `on_response`.  
+   - Successful BODY/ARTICLE (220/222) updates per-server stats; missing/500 variants toggle capability flags (BODY/STAT support).
+
+7. **Decoding and caching**  
+   - `Downloader.decode` hands responses to `decoder.decode`, which yEnc/UU decodes, CRC-checks, and stores payloads in `ArticleCache` (memory or disk spill).  
+   - Articles with DMCA/bad data trigger retry on other servers until `max_art_tries` is exceeded.
+
+8. **Assembly to files**  
+   - `Assembler` worker consumes decoded pieces, writes to the target file, updates CRC, and cleans admin markers. It guards disk space (`diskspace_check`) and schedules direct unpack or PAR2 handling when files finish.
+
+9. **Queue bookkeeping**  
+   - `NzbQueue.register_article` records success/failure; completed files advance NZF/NZO state. If all files done, the job moves to post-processing (`PostProcessor.process`), which runs `newsunpack`, scripts, sorting, etc.
+
+10. **Control & resilience**  
+    - Pausing/resuming (`Downloader.pause/resume`), bandwidth limiting, and sleep tuning happen in the main loop.  
+    - Errors/timeouts lead to `reset_nw` (close socket, return article, maybe penalize server). Optional servers can be temporarily disabled; required ones schedule resumes.  
+    - Forced disconnect/shutdown drains sockets, refreshes DNS, and exits cleanly.

context/Repo-layout.md

@@ -0,0 +1,32 @@
+## Repo layout
+
+- Entry points & metadata  
+  - `SABnzbd.py`: starts the app.  
+  - `README.md` / `README.mkd`: release notes and overview.  
+  - `requirements.txt`: runtime deps.
+
+- Core application package `sabnzbd/`  
+  - Download engine: `downloader.py` (main loop), `newswrapper.py` (NNTP connections), `urlgrabber.py`, `nzbqueue.py` (queue), `nzbparser.py` (parse NZB), `assembler.py` (writes decoded parts), `decoder.py` (yEnc/UU decode), `articlecache.py` (in-memory/on-disk cache).  
+  - Post-processing: `newsunpack.py`, `postproc.py`, `directunpacker.py`, `sorting.py`, `deobfuscate_filenames.py`.  
+  - Config/constants/utilities: `cfg.py`, `config.py`, `constants.py`, `misc.py`, `filesystem.py`, `encoding.py`, `lang.py`, `scheduler.py`, `notifier.py`, `emailer.py`, `rss.py`.  
+  - UI plumbing: `interface.py`, `skintext.py`, `version.py`, platform helpers (`macosmenu.py`, `sabtray*.py`).  
+  - Subpackages: `sabnzbd/nzb/` (NZB model objects), `sabnzbd/utils/` (helpers).
+
+- Web interfaces & assets  
+  - `interfaces/Glitter`, `interfaces/Config`, `interfaces/wizard`: HTML/JS/CSS skins.  
+  - `icons/`: tray/web icons.  
+  - `locale/`, `po/`, `tools/`: translation sources and helper scripts (`make_mo.py`, etc.).
+
+- Testing & samples  
+  - `tests/`: pytest suite plus `data/` fixtures and `test_utils/`.  
+  - `scripts/`: sample post-processing hooks (`Sample-PostProc.*`).  
+
+- Packaging/build  
+  - `builder/`: platform build scripts (DMG/EXE specs, `package.py`, `release.py`).  
+  - Platform folders `win/`, `macos/`, `linux/`, `snap/`: installer or platform-specific assets.  
+  - `admin/`, `builder/constants.py`, `licenses/`: release and licensing support files.
+
+- Documentation
+  - Documentation website source is stored in the `sabnzbd.github.io` repo.
+  - This repo is most likely located 1 level up from the root folder of this repo.
+  - Documentation is split per SABnzbd version, in the `wiki` folder.

interfaces/Config/templates/config_notify.tmpl

@@ -188,6 +188,7 @@
                 </tr>
             </table>
             <p>$T('explain-apprise_enable')</p>
+            <p><a href="https://appriseit.com/" target="_blank">Apprise documentation</a></p>
             <p>$T('version'): ${apprise.__version__}</p>
 
             $show_cat_box('apprise')

interfaces/Config/templates/config_server.tmpl

@@ -117,6 +117,12 @@
                         <input type="checkbox" name="optional" id="optional" value="1" />
                         <span class="desc">$T('explain-optional')</span>
                     </div>
+                    <div class="field-pair advanced-settings">
+                        <label class="config" for="pipelining_requests">$T('srv-pipelining_requests')</label>
+                        <input type="number" name="pipelining_requests" id="pipelining_requests" min="1" max="20" value="1" />
+                        <span class="desc">$T('explain-pipelining_requests')<br>$T('readwiki')
+                        <a href="https://sabnzbd.org/wiki/advanced/nntp-pipelining" target="_blank">https://sabnzbd.org/wiki/advanced/nntp-pipelining</a></span>
+                    </div>
                     <div class="field-pair advanced-settings">
                         <label class="config" for="expire_date">$T('srv-expire_date')</label>
                         <input type="date" name="expire_date" id="expire_date" />
@@ -248,6 +254,12 @@
                             <input type="checkbox" name="optional" id="optional$cur" value="1" <!--#if int($server['optional']) != 0 then 'checked="checked"' else ""#--> />
                             <span class="desc">$T('explain-optional')</span>
                         </div>
+                        <div class="field-pair advanced-settings">
+                            <label class="config" for="pipelining_requests$cur">$T('srv-pipelining_requests')</label>
+                            <input type="number" name="pipelining_requests" id="pipelining_requests$cur" value="$server['pipelining_requests']" min="1" max="20" required />
+                            <span class="desc">$T('explain-pipelining_requests')<br>$T('readwiki')
+                            <a href="https://sabnzbd.org/wiki/advanced/nntp-pipelining" target="_blank">https://sabnzbd.org/wiki/advanced/nntp-pipelining</a></span>
+                        </div>
                         <div class="field-pair advanced-settings">
                             <label class="config" for="expire_date$cur">$T('srv-expire_date')</label>
                             <input type="date" name="expire_date" id="expire_date$cur"  value="$server['expire_date']" />

interfaces/Glitter/templates/include_overlays.tmpl

@@ -6,8 +6,12 @@
         <span class="glyphicon glyphicon-open"></span> $T('Glitter-notification-uploading') <span class="main-notification-box-file-count"></span>
     </div>
 
+    <div class="main-notification-box-uploading-failed">
+        <span class="glyphicon glyphicon-exclamation-sign"></span> $T('Glitter-notification-upload-failed').replace('%s', '') <span class="main-notification-box-file-count"></span>
+    </div>
+
     <div class="main-notification-box-queue-repair">
-        <span class="glyphicon glyphicon glyphicon-wrench"></span> $T('Glitter-repairQueue')
+        <span class="glyphicon glyphicon-wrench"></span> $T('Glitter-repairQueue')
     </div>
 
     <div class="main-notification-box-disconnect">

interfaces/Glitter/templates/static/javascripts/glitter.main.js

@@ -726,6 +726,9 @@ function ViewModel() {
                 $('#nzbname').val('')
                 $('.btn-file em').html(glitterTranslate.chooseFile + '…')
             }
+        }).fail(function(xhr, status, error) {
+            // Update the uploading notification text to show error
+            showNotification('.main-notification-box-uploading-failed', 0, error)
         });
     }
 

interfaces/Glitter/templates/static/stylesheets/colorschemes/Night.css

@@ -69,6 +69,10 @@ legend,
     box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
 }
 
+.main-notification-box-uploading-failed {
+    color: #F95151;
+}
+
 .container,
 .modal-body,
 .modal-footer {

linux/org.sabnzbd.sabnzbd.appdata.xml

@@ -5,6 +5,10 @@
   <metadata_license>MIT</metadata_license>
   <name>SABnzbd</name>
   <summary>Free and easy binary newsreader</summary>
+  <branding>
+    <color type="primary" scheme_preference="light">#e7e7e7</color>
+    <color type="primary" scheme_preference="dark">#444444</color>
+  </branding>
   <description>
     <p>
       SABnzbd is a free and Open Source web-based binary newsreader,
@@ -17,6 +21,13 @@
       and services that help automate the download process.
     </p>
   </description>
+  <keywords>
+    <keyword>usenet</keyword>
+    <keyword>nzb</keyword>
+    <keyword>download</keyword>
+    <keyword>newsreader</keyword>
+    <keyword>binary</keyword>
+  </keywords>
   <categories>
     <category>Network</category>
     <category>FileTransfer</category>
@@ -24,34 +35,49 @@
   <url type="homepage">https://sabnzbd.org</url>
   <url type="bugtracker">https://github.com/sabnzbd/sabnzbd/issues</url>
   <url type="vcs-browser">https://github.com/sabnzbd/sabnzbd</url>
+  <url type="contribute">https://github.com/sabnzbd/sabnzbd</url>
   <url type="translate">https://sabnzbd.org/wiki/translate</url>
   <url type="donation">https://sabnzbd.org/donate</url>
   <url type="help">https://sabnzbd.org/wiki/</url>
   <url type="faq">https://sabnzbd.org/wiki/faq</url>
   <url type="contact">https://sabnzbd.org/live-chat.html</url>
   <releases>
-    <release version="4.6.0" date="2025-12-24" type="stable"/>
-    <release version="4.5.5" date="2025-10-24" type="stable"/>
-    <release version="4.5.4" date="2025-10-22" type="stable"/>
-    <release version="4.5.3" date="2025-08-25" type="stable"/>
-    <release version="4.5.2" date="2025-07-09" type="stable"/>
-    <release version="4.5.1" date="2025-04-11" type="stable"/>
-    <release version="4.5.0" date="2025-04-01" type="stable"/>
-    <release version="4.4.1" date="2024-12-23" type="stable"/>
-    <release version="4.4.0" date="2024-12-09" type="stable"/>
-    <release version="4.3.3" date="2024-08-01" type="stable"/>
-    <release version="4.3.2" date="2024-05-30" type="stable"/>
-    <release version="4.3.1" date="2024-05-03" type="stable"/>
-    <release version="4.3.0" date="2024-05-01" type="stable"/>
-    <release version="4.2.2" date="2024-02-01" type="stable"/>
-    <release version="4.2.1" date="2024-01-05" type="stable"/>
-    <release version="4.2.0" date="2024-01-03" type="stable"/>
-    <release version="4.1.0" date="2023-09-26" type="stable"/>
-    <release version="4.0.3" date="2023-06-16" type="stable"/>
-    <release version="4.0.2" date="2023-06-09" type="stable"/>
-    <release version="4.0.1" date="2023-05-01" type="stable"/>
-    <release version="4.0.0" date="2023-04-28" type="stable"/>
-    <release version="3.7.2" date="2023-02-05" type="stable"/>
+    <release version="5.0.0" date="2026-03-01" type="stable">
+      <url type="details">https://github.com/sabnzbd/sabnzbd/releases/tag/5.0.0</url>
+    </release>
+    <release version="4.5.5" date="2025-10-24" type="stable">
+      <url type="details">https://github.com/sabnzbd/sabnzbd/releases/tag/4.5.5</url>
+    </release>
+    <release version="4.5.4" date="2025-10-22" type="stable">
+      <url type="details">https://github.com/sabnzbd/sabnzbd/releases/tag/4.5.4</url>
+    </release>
+    <release version="4.5.3" date="2025-08-25" type="stable">
+      <url type="details">https://github.com/sabnzbd/sabnzbd/releases/tag/4.5.3</url>
+    </release>
+    <release version="4.5.2" date="2025-07-09" type="stable">
+      <url type="details">https://github.com/sabnzbd/sabnzbd/releases/tag/4.5.2</url>
+    </release>
+    <release version="4.5.1" date="2025-04-11" type="stable">
+      <url type="details">https://github.com/sabnzbd/sabnzbd/releases/tag/4.5.1</url>
+    </release>
+    <release version="4.5.0" date="2025-04-01" type="stable">
+      <url type="details">https://github.com/sabnzbd/sabnzbd/releases/tag/4.5.0</url>
+    </release>
+    <release version="4.4.1" date="2024-12-23" type="stable">
+      <url type="details">https://github.com/sabnzbd/sabnzbd/releases/tag/4.4.1</url>
+    </release>
+    <release version="4.4.0" date="2024-12-09" type="stable">
+      <url type="details">https://github.com/sabnzbd/sabnzbd/releases/tag/4.4.0</url>
+    </release>
+    <release version="4.3.3" date="2024-08-01" type="stable">
+      <url type="details">https://github.com/sabnzbd/sabnzbd/releases/tag/4.3.3</url>
+    </release>
+    <release version="4.3.2" date="2024-05-30" type="stable">
+      <url type="details">https://github.com/sabnzbd/sabnzbd/releases/tag/4.3.2</url>
+    </release>
+    <release version="4.3.1" date="2024-05-03" type="stable">
+      <url type="details">https://github.com/sabnzbd/sabnzbd/releases/tag/4.3.1</url>
+    </release>
   </releases>
   <launchable type="desktop-id">sabnzbd.desktop</launchable>
   <provides>
@@ -74,11 +100,59 @@
   <screenshots>
     <screenshot type="default">
       <image>https://sabnzbd.org/images/landing/screenshots/interface.png</image>
-      <caption>Web interface</caption>
+      <caption>Intuitive interface</caption>
     </screenshot>
     <screenshot>
       <image>https://sabnzbd.org/images/landing/screenshots/night-mode.png</image>
-      <caption>Night mode</caption>
+      <caption>Also comes in Night-mode</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://sabnzbd.org/images/landing/screenshots/add-nzb.png</image>
+      <caption>Add NZB's or use drag-and-drop!</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://sabnzbd.org/images/landing/screenshots/phone-interface.png</image>
+      <caption>Scales to any screen size</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://sabnzbd.org/images/landing/screenshots/history-details.png</image>
+      <caption>Easy overview of all history details</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://sabnzbd.org/images/landing/screenshots/phone-extra.png</image>
+      <caption>Every option, on every screen size</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://sabnzbd.org/images/landing/screenshots/file-lists.png</image>
+      <caption>Manage a job's individual files</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://sabnzbd.org/images/landing/screenshots/set-speedlimit.png</image>
+      <caption>Easy speed limiting</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://sabnzbd.org/images/landing/screenshots/set-options.png</image>
+      <caption>Quickly change settings</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://sabnzbd.org/images/landing/screenshots/dashboard.png</image>
+      <caption>Easy system check</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://sabnzbd.org/images/landing/screenshots/connections-overview.png</image>
+      <caption>See active connections</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://sabnzbd.org/images/landing/screenshots/skin-settings.png</image>
+      <caption>Customize the interface</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://sabnzbd.org/images/landing/screenshots/tabbed.png</image>
+      <caption>Tabbed-mode</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://sabnzbd.org/images/landing/screenshots/set-custom-pause.png</image>
+      <caption>Specify any pause duration</caption>
     </screenshot>
     <screenshot>
       <image>https://sabnzbd.org/images/landing/screenshots/config.png</image>

po/email/SABemail.pot

@@ -4,7 +4,7 @@
 #
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: team@sabnzbd.org\n"
 "Language-Team: SABnzbd <team@sabnzbd.org>\n"

po/email/cs.po

@@ -3,7 +3,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Language-Team: Czech (https://app.transifex.com/sabnzbd/teams/111101/cs/)\n"
 "MIME-Version: 1.0\n"

po/email/da.po

@@ -3,7 +3,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Language-Team: Danish (https://app.transifex.com/sabnzbd/teams/111101/da/)\n"
 "MIME-Version: 1.0\n"

po/email/de.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: German (https://app.transifex.com/sabnzbd/teams/111101/de/)\n"

po/email/es.po

@@ -3,7 +3,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Language-Team: Spanish (https://app.transifex.com/sabnzbd/teams/111101/es/)\n"
 "MIME-Version: 1.0\n"

po/email/fi.po

@@ -3,7 +3,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Language-Team: Finnish (https://app.transifex.com/sabnzbd/teams/111101/fi/)\n"
 "MIME-Version: 1.0\n"

po/email/fr.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Fred L <88com88@gmail.com>, 2025\n"
 "Language-Team: French (https://app.transifex.com/sabnzbd/teams/111101/fr/)\n"

po/email/he.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Hebrew (https://app.transifex.com/sabnzbd/teams/111101/he/)\n"

po/email/it.po

@@ -3,7 +3,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Language-Team: Italian (https://app.transifex.com/sabnzbd/teams/111101/it/)\n"
 "MIME-Version: 1.0\n"

po/email/nb.po

@@ -3,7 +3,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Language-Team: Norwegian Bokmål (https://app.transifex.com/sabnzbd/teams/111101/nb/)\n"
 "MIME-Version: 1.0\n"

po/email/nl.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Dutch (https://app.transifex.com/sabnzbd/teams/111101/nl/)\n"

po/email/pl.po

@@ -3,7 +3,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Language-Team: Polish (https://app.transifex.com/sabnzbd/teams/111101/pl/)\n"
 "MIME-Version: 1.0\n"

po/email/pt_BR.po

@@ -3,7 +3,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Language-Team: Portuguese (Brazil) (https://app.transifex.com/sabnzbd/teams/111101/pt_BR/)\n"
 "MIME-Version: 1.0\n"

po/email/ro.po

@@ -3,7 +3,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Language-Team: Romanian (https://app.transifex.com/sabnzbd/teams/111101/ro/)\n"
 "MIME-Version: 1.0\n"

po/email/ru.po

@@ -3,7 +3,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Language-Team: Russian (https://app.transifex.com/sabnzbd/teams/111101/ru/)\n"
 "MIME-Version: 1.0\n"

po/email/sr.po

@@ -3,7 +3,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Language-Team: Serbian (https://app.transifex.com/sabnzbd/teams/111101/sr/)\n"
 "MIME-Version: 1.0\n"

po/email/sv.po

@@ -3,7 +3,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Language-Team: Swedish (https://app.transifex.com/sabnzbd/teams/111101/sv/)\n"
 "MIME-Version: 1.0\n"

po/email/tr.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: mauron, 2025\n"
 "Language-Team: Turkish (https://app.transifex.com/sabnzbd/teams/111101/tr/)\n"

po/email/zh_CN.po

@@ -3,7 +3,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Language-Team: Chinese (China) (https://app.transifex.com/sabnzbd/teams/111101/zh_CN/)\n"
 "MIME-Version: 1.0\n"

po/main/SABnzbd.pot

@@ -4,7 +4,7 @@
 #
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: team@sabnzbd.org\n"
 "Language-Team: SABnzbd <team@sabnzbd.org>\n"
@@ -125,6 +125,11 @@ msgstr ""
 msgid "Current umask (%o) might deny SABnzbd access to the files and folders it creates."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid "Completed Download Folder %s is on FAT file system, limiting maximum file size to 4GB"
@@ -670,6 +675,11 @@ msgstr ""
 msgid "%s is not writable with special character filenames. This can cause problems."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr ""
@@ -884,7 +894,7 @@ msgid "Update Available!"
 msgstr ""
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr ""
 
@@ -1553,6 +1563,14 @@ msgstr ""
 msgid "Received a DBus exception %s"
 msgstr ""
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr ""
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr ""
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1579,14 +1597,6 @@ msgstr ""
 msgid "RSS Feed %s was empty"
 msgstr ""
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr ""
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr ""
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr ""
@@ -3397,6 +3407,14 @@ msgstr ""
 msgid "Enable"
 msgstr ""
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid "Request multiple articles per connection without waiting for each response first.<br />This can improve download speeds, especially on connections with higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/cs.po

@@ -7,7 +7,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2023\n"
 "Language-Team: Czech (https://app.transifex.com/sabnzbd/teams/111101/cs/)\n"
@@ -144,6 +144,11 @@ msgid ""
 "creates."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -726,6 +731,11 @@ msgid ""
 "problems."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr "Odmítnuto spojení z:"
@@ -955,7 +965,7 @@ msgid "Update Available!"
 msgstr "Dostupná aktualizace!"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr "Nezdařilo se nahrát soubor: %s"
 
@@ -1644,6 +1654,14 @@ msgstr ""
 msgid "Received a DBus exception %s"
 msgstr ""
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "Prázdný RSS záznam nalezen (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "Nekompatibilní kanál"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1670,14 +1688,6 @@ msgstr ""
 msgid "RSS Feed %s was empty"
 msgstr "RSS kanál %s byl prázdný"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "Nekompatibilní kanál"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "Prázdný RSS záznam nalezen (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "Zobrazit rozhraní"
@@ -3587,6 +3597,17 @@ msgstr ""
 msgid "Enable"
 msgstr ""
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/da.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Danish (https://app.transifex.com/sabnzbd/teams/111101/da/)\n"
@@ -147,6 +147,11 @@ msgid ""
 msgstr ""
 "Aktuel umask (%o) kan nægte SABnzbd adgang til filer og mapper den opretter."
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -764,6 +769,11 @@ msgid ""
 msgstr ""
 "%s er ikke skrivbar med filnavne med specialtegn. Dette kan give problemer."
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr "Afviste forbindelse fra:"
@@ -996,7 +1006,7 @@ msgid "Update Available!"
 msgstr "Opdatering tilgængelig!"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr "Kunne ikke uploade fil: %s"
 
@@ -1718,6 +1728,14 @@ msgstr "Fejl ved lukning af system"
 msgid "Received a DBus exception %s"
 msgstr "Modtog en DBus-undtagelse %s"
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "Tom RSS post blev fundet (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "Inkompatibel feed"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1744,14 +1762,6 @@ msgstr "Server %s bruger et upålideligt HTTPS-certifikat"
 msgid "RSS Feed %s was empty"
 msgstr "RSS Feed %s er tom"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "Inkompatibel feed"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "Tom RSS post blev fundet (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "Vis grænseflade"
@@ -3760,6 +3770,17 @@ msgstr ""
 msgid "Enable"
 msgstr "Aktivere"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/de.po

@@ -20,7 +20,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: German (https://app.transifex.com/sabnzbd/teams/111101/de/)\n"
@@ -167,6 +167,11 @@ msgstr ""
 "Die aktuellen Zugriffseinstellungen (%o) könnte SABnzbd den Zugriff auf die "
 "erstellten Dateien und Ordner von SABnzbd verweigern."
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -803,6 +808,11 @@ msgstr ""
 "Dateinamen mit Umlaute können nicht in %s gespeichert werden. Dies kann zu "
 "Problemen führen."
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr "Abgelehnte Verbindung von:"
@@ -1036,7 +1046,7 @@ msgid "Update Available!"
 msgstr "Neue Version verfügbar!"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr "Hochladen fehlgeschlagen: %s"
 
@@ -1774,6 +1784,14 @@ msgstr "Fehler beim Herunterfahren des Systems"
 msgid "Received a DBus exception %s"
 msgstr "DBus-Ausnahmefehler empfangen %s "
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "Leerer RSS-Feed gefunden: %s"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "Inkompatibeler RSS-Feed"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1800,14 +1818,6 @@ msgstr "Der Server %s nutzt ein nicht vertrauenswürdiges HTTPS-Zertifikat"
 msgid "RSS Feed %s was empty"
 msgstr "RSS-Feed %s war leer"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "Inkompatibeler RSS-Feed"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "Leerer RSS-Feed gefunden: %s"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "Interface anzeigen"
@@ -3866,6 +3876,17 @@ msgstr "Für unzuverlässige Server, wird bei Fehlern länger ignoriert"
 msgid "Enable"
 msgstr "Aktivieren"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/es.po

@@ -9,7 +9,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Spanish (https://app.transifex.com/sabnzbd/teams/111101/es/)\n"
@@ -156,6 +156,11 @@ msgstr ""
 "La umask actual (%o) podría denegarle acceso a SABnzbd a los archivos y "
 "carpetas que este crea."
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -787,6 +792,11 @@ msgstr ""
 "%s no permite escribir nombres de archivo con caracteres especiales. Esto "
 "puede causar problemas."
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr "Conexión rechazada de:"
@@ -1020,7 +1030,7 @@ msgid "Update Available!"
 msgstr "¡Actualización Disponible!"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr "Error al subir archivo: %s"
 
@@ -1762,6 +1772,14 @@ msgstr "Error al apagarel sistema"
 msgid "Received a DBus exception %s"
 msgstr "Se ha recibido una excepción DBus %s"
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "Entrada RSS vacía (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "Canal Incorrecto"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1790,14 +1808,6 @@ msgstr "El servidor %s utiliza un certificado HTTPS no fiable"
 msgid "RSS Feed %s was empty"
 msgstr "El canal RSS %s estaba vacío"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "Canal Incorrecto"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "Entrada RSS vacía (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "Mostrar interfaz"
@@ -3837,6 +3847,17 @@ msgstr ""
 msgid "Enable"
 msgstr "Habilitar"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/fi.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2023\n"
 "Language-Team: Finnish (https://app.transifex.com/sabnzbd/teams/111101/fi/)\n"
@@ -146,6 +146,11 @@ msgid ""
 "creates."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -732,6 +737,11 @@ msgid ""
 "problems."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr ""
@@ -961,7 +971,7 @@ msgid "Update Available!"
 msgstr "Päivitys saatavilla!"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr ""
 
@@ -1671,6 +1681,14 @@ msgstr "Virhe sammutettaessa järjestelmää"
 msgid "Received a DBus exception %s"
 msgstr ""
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "Tyhjä RSS kohde löytyi (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "Puutteellinen syöte"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1697,14 +1715,6 @@ msgstr "Palvelin %s käyttää epäluotettavaa HTTPS sertifikaattia"
 msgid "RSS Feed %s was empty"
 msgstr "RSS syöte %s oli tyhjä"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "Puutteellinen syöte"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "Tyhjä RSS kohde löytyi (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "Näytä käyttöliittymä"
@@ -3678,6 +3688,17 @@ msgstr ""
 msgid "Enable"
 msgstr "Ota käyttöön"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/fr.po

@@ -3,13 +3,13 @@
 # 
 # Translators:
 # Safihre <safihre@sabnzbd.org>, 2025
-# Fred L <88com88@gmail.com>, 2025
+# Fred L <88com88@gmail.com>, 2026
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
-"Last-Translator: Fred L <88com88@gmail.com>, 2025\n"
+"Last-Translator: Fred L <88com88@gmail.com>, 2026\n"
 "Language-Team: French (https://app.transifex.com/sabnzbd/teams/111101/fr/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -157,6 +157,13 @@ msgstr ""
 "L'umask actuel (%o) pourrait refuser à SABnzbd l'accès aux fichiers et "
 "dossiers qu'il crée."
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+"La version Windows ARM de SABnzbd est disponible depuis notre page "
+"Téléchargements!"
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -792,6 +799,13 @@ msgstr ""
 "Le fichier %s n'est pas inscriptible à cause des caractères spéciaux dans le"
 " nom. Cela peut causer des problèmes."
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+"%s ne prend pas en charge les fichiers fragmentés. Désactivation du mode "
+"d'écriture directe."
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr "Connexion refusée de:"
@@ -1025,7 +1039,7 @@ msgid "Update Available!"
 msgstr "Mise à Jour disponible!"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr "Échec de l'upload du fichier : %s"
 
@@ -1760,6 +1774,14 @@ msgstr "Erreur lors de l'arrêt du système"
 msgid "Received a DBus exception %s"
 msgstr "Exception DBus reçue %s"
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "Entrée vide de flux RSS trouvée (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "Flux incompatible"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1787,14 +1809,6 @@ msgstr "Le serveur %s utilise un certificat de sécurité HTTPS non authentifié
 msgid "RSS Feed %s was empty"
 msgstr "Le flux RSS %s était vide"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "Flux incompatible"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "Entrée vide de flux RSS trouvée (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "Afficher l’interface"
@@ -3852,6 +3866,20 @@ msgstr ""
 msgid "Enable"
 msgstr "Activer"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr "Articles par demande"
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+" Demandez plusieurs articles par connexion sans attendre chaque réponse.<br "
+"/>Cela peut améliorer les vitesses de téléchargement, en particulier sur les"
+" connexions à latence élevée. "
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/he.po

@@ -7,7 +7,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Hebrew (https://app.transifex.com/sabnzbd/teams/111101/he/)\n"
@@ -143,6 +143,11 @@ msgstr ""
 "פקודת umask נוכחית (%o) עשויה לדחות גישה מן SABnzbd אל הקבצים והתיקיות שהוא "
 "יוצר."
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -745,6 +750,11 @@ msgid ""
 "problems."
 msgstr "%s אינו בר־כתיבה עם שמות קבצים עם תו מיוחד. זה יכול לגרום לבעיות."
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr "חיבור מסורב מאת:"
@@ -973,7 +983,7 @@ msgid "Update Available!"
 msgstr "עדכון זמין!"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr "כישלון בהעלאת קובץ: %s"
 
@@ -1690,6 +1700,14 @@ msgstr "שגיאה בזמן כיבוי מערכת"
 msgid "Received a DBus exception %s"
 msgstr "חריגת DBus התקבלה %s"
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "כניסת RSS ריקה נמצאה (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "הזנה בלתי תואמת"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1716,14 +1734,6 @@ msgstr "השרת %s משתמש בתעודת HTTPS בלתי מהימנה"
 msgid "RSS Feed %s was empty"
 msgstr "הזנת RSS %s הייתה ריקה"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "הזנה בלתי תואמת"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "כניסת RSS ריקה נמצאה (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "הראה ממשק"
@@ -3696,6 +3706,17 @@ msgstr "עבור שרתים בלתי מהימנים, ייתקל בהתעלמות
 msgid "Enable"
 msgstr "אפשר"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/it.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Italian (https://app.transifex.com/sabnzbd/teams/111101/it/)\n"
@@ -150,6 +150,11 @@ msgstr ""
 "L'umask corrente (%o) potrebbe negare a SABnzbd l'accesso ai file e alle "
 "cartelle che crea."
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -783,6 +788,11 @@ msgstr ""
 "%s non è scrivibile con nomi di file con caratteri speciali. Questo può "
 "causare problemi."
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr "Connessione rifiutata da:"
@@ -1016,7 +1026,7 @@ msgid "Update Available!"
 msgstr "Aggiornamento disponibile!"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr "Caricamento del file %s fallito"
 
@@ -1741,6 +1751,14 @@ msgstr "Errore durante lo spegnimento del sistema"
 msgid "Received a DBus exception %s"
 msgstr "Ricevuta un'eccezione DBus %s"
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "Trovata voce RSS vuota (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "Feed incompatibile"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1767,14 +1785,6 @@ msgstr "Il server %s utilizza un certificato HTTPS non attendibile"
 msgid "RSS Feed %s was empty"
 msgstr "Il feed RSS %s era vuoto"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "Feed incompatibile"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "Trovata voce RSS vuota (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "Mostra interfaccia"
@@ -3809,6 +3819,17 @@ msgstr ""
 msgid "Enable"
 msgstr "Abilita"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/nb.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2023\n"
 "Language-Team: Norwegian Bokmål (https://app.transifex.com/sabnzbd/teams/111101/nb/)\n"
@@ -142,6 +142,11 @@ msgid ""
 "creates."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -729,6 +734,11 @@ msgid ""
 "problems."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr ""
@@ -958,7 +968,7 @@ msgid "Update Available!"
 msgstr "Oppdatering tilgjengelig"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr ""
 
@@ -1669,6 +1679,14 @@ msgstr "Feil under avslutting av systemet"
 msgid "Received a DBus exception %s"
 msgstr ""
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "Tom RSS post funnet (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "Ukompatibel nyhetsstrøm"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1695,14 +1713,6 @@ msgstr "Server %s bruker et usikkert HTTP sertifikat"
 msgid "RSS Feed %s was empty"
 msgstr "RSS-kilde %s var tom"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "Ukompatibel nyhetsstrøm"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "Tom RSS post funnet (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "Vis grensesnitt"
@@ -3657,6 +3667,17 @@ msgstr ""
 msgid "Enable"
 msgstr "Aktivere"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/nl.po

@@ -8,7 +8,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Dutch (https://app.transifex.com/sabnzbd/teams/111101/nl/)\n"
@@ -152,6 +152,11 @@ msgstr ""
 "Huidige umask (%o) zou kunnen beletten dat SABnzbd toegang heeft tot de "
 "aangemaakte bestanden en mappen."
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -786,6 +791,11 @@ msgstr ""
 "Het is niet mogelijk bestanden met speciale tekens op te slaan in %s. Dit "
 "geeft mogelijk problemen bij het verwerken van downloads."
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr "Verbinding geweigerd van: "
@@ -1019,7 +1029,7 @@ msgid "Update Available!"
 msgstr "Update beschikbaar!"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr "Kon het volgende bestand niet uploaden: %s"
 
@@ -1744,6 +1754,14 @@ msgstr "Fout bij het afsluiten van het systeem"
 msgid "Received a DBus exception %s"
 msgstr "DBus foutmelding %s "
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "Lege RSS-feed gevonden (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "Ongeschikte RSS-feed"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1770,14 +1788,6 @@ msgstr "Server %s gebruikt een onbetrouwbaar HTTPS-certificaat"
 msgid "RSS Feed %s was empty"
 msgstr "RSS-feed %s is leeg"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "Ongeschikte RSS-feed"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "Lege RSS-feed gevonden (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "Toon webinterface"
@@ -3809,6 +3819,17 @@ msgstr ""
 msgid "Enable"
 msgstr "Inschakelen"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/pl.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2023\n"
 "Language-Team: Polish (https://app.transifex.com/sabnzbd/teams/111101/pl/)\n"
@@ -138,6 +138,11 @@ msgid ""
 "creates."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -732,6 +737,11 @@ msgid ""
 "problems."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr ""
@@ -961,7 +971,7 @@ msgid "Update Available!"
 msgstr "Dostępna aktualizacja!"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr ""
 
@@ -1678,6 +1688,14 @@ msgstr "Wyłączenie systemu nie powiodło się"
 msgid "Received a DBus exception %s"
 msgstr ""
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "Znaleziono pusty wpis RSS (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "Niekompatybilny kanał"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1704,14 +1722,6 @@ msgstr "Serwer %s używa niezaufanego certyfikatu HTTPS"
 msgid "RSS Feed %s was empty"
 msgstr "Kanał RSS %s był pusty"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "Niekompatybilny kanał"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "Znaleziono pusty wpis RSS (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "Pokaż interfejs"
@@ -3669,6 +3679,17 @@ msgstr ""
 msgid "Enable"
 msgstr "Włączony"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/pt_BR.po

@@ -7,7 +7,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2023\n"
 "Language-Team: Portuguese (Brazil) (https://app.transifex.com/sabnzbd/teams/111101/pt_BR/)\n"
@@ -147,6 +147,11 @@ msgstr ""
 "Mascara atual (%o) pode negar ao SABnzbd acesso aos arquivos e diretórios "
 "criados."
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -744,6 +749,11 @@ msgid ""
 "problems."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr ""
@@ -973,7 +983,7 @@ msgid "Update Available!"
 msgstr "Atualização Disponível!"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr ""
 
@@ -1688,6 +1698,14 @@ msgstr "Erro ao desligar o sistema"
 msgid "Received a DBus exception %s"
 msgstr ""
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "Entrada RSS vazia encontrada (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "Feed incompatível"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1715,14 +1733,6 @@ msgstr "Servidor %s usa um certificado HTTPS não confiável"
 msgid "RSS Feed %s was empty"
 msgstr "O feed RSS %s estava vazio"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "Feed incompatível"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "Entrada RSS vazia encontrada (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "Exibir interface"
@@ -3680,6 +3690,17 @@ msgstr ""
 msgid "Enable"
 msgstr "Habilitar"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/ro.po

@@ -7,7 +7,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2023\n"
 "Language-Team: Romanian (https://app.transifex.com/sabnzbd/teams/111101/ro/)\n"
@@ -147,6 +147,11 @@ msgid ""
 "creates."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -752,6 +757,11 @@ msgid ""
 "problems."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr ""
@@ -983,7 +993,7 @@ msgid "Update Available!"
 msgstr "Actualizare Disponibilă!"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr "Eșuare la încărcarea fișierului: %s"
 
@@ -1707,6 +1717,14 @@ msgstr "Eroare la oprirea sistemului"
 msgid "Received a DBus exception %s"
 msgstr ""
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "Valoare RSS gasită a fost goală (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "Fulx RSS incompatibil"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1733,14 +1751,6 @@ msgstr "Serverul %s utilizează un certificat HTTPS nesigur"
 msgid "RSS Feed %s was empty"
 msgstr "Fluxul RSS %s a fost gol"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "Fulx RSS incompatibil"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "Valoare RSS gasită a fost goală (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "Arată interfața"
@@ -3701,6 +3711,17 @@ msgstr ""
 msgid "Enable"
 msgstr "Activează"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/ru.po

@@ -3,12 +3,13 @@
 # 
 # Translators:
 # Safihre <safihre@sabnzbd.org>, 2023
+# ST02, 2026
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
-"Last-Translator: Safihre <safihre@sabnzbd.org>, 2023\n"
+"Last-Translator: ST02, 2026\n"
 "Language-Team: Russian (https://app.transifex.com/sabnzbd/teams/111101/ru/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -24,7 +25,7 @@ msgstr "Предупреждение"
 #. Notification
 #: SABnzbd.py, sabnzbd/notifier.py
 msgid "Error"
-msgstr ""
+msgstr "Ошибка"
 
 #. Error message
 #: SABnzbd.py
@@ -88,7 +89,7 @@ msgstr ""
 #. Error message
 #: SABnzbd.py
 msgid "HTTP and HTTPS ports cannot be the same"
-msgstr ""
+msgstr "HTTP и HTTPS порты не могут быть одинаковыми"
 
 #. Warning message
 #: SABnzbd.py
@@ -103,12 +104,12 @@ msgstr "HTTPS отключён, поскольку отсутствуют фай
 #. Warning message
 #: SABnzbd.py
 msgid "Disabled HTTPS because of invalid CERT and KEY files"
-msgstr ""
+msgstr "HTTPS отключён, поскольку файлы CERT и KEY недействительны"
 
 #. Error message
 #: SABnzbd.py
 msgid "Failed to start web-interface: "
-msgstr ""
+msgstr "Не удалось запустить веб-интерфейс:"
 
 #: SABnzbd.py
 msgid "SABnzbd %s started"
@@ -142,6 +143,11 @@ msgid ""
 "creates."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -301,7 +307,7 @@ msgstr ""
 
 #: sabnzbd/assembler.py
 msgid "Aborted, encryption detected"
-msgstr ""
+msgstr "Прервано, обнаружено шифрование"
 
 #. Warning message
 #: sabnzbd/assembler.py
@@ -314,7 +320,7 @@ msgstr ""
 
 #: sabnzbd/assembler.py
 msgid "Aborted, unwanted extension detected"
-msgstr ""
+msgstr "Прервано, обнаружено нежелательное расширение"
 
 #. Warning message
 #: sabnzbd/assembler.py
@@ -343,7 +349,7 @@ msgstr ""
 
 #: sabnzbd/bpsmeter.py
 msgid "Downloading resumed after quota reset"
-msgstr ""
+msgstr "Загрузка возобновилась после сброса квоты"
 
 #: sabnzbd/cfg.py, sabnzbd/interface.py
 msgid "Incorrect parameter"
@@ -511,7 +517,7 @@ msgstr "Не удаётся прочитать наблюдаемую папку
 
 #: sabnzbd/downloader.py
 msgid "Resuming"
-msgstr ""
+msgstr "Возобновление"
 
 #. PP status - Priority pick list
 #: sabnzbd/downloader.py, sabnzbd/macosmenu.py, sabnzbd/sabtray.py,
@@ -728,6 +734,11 @@ msgid ""
 "problems."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr ""
@@ -957,7 +968,7 @@ msgid "Update Available!"
 msgstr "Доступно обновление!"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr ""
 
@@ -1671,6 +1682,14 @@ msgstr "Не удалось завершить работу системы"
 msgid "Received a DBus exception %s"
 msgstr ""
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "Обнаружена пустая запись RSS (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "Несовместимая лента"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1697,14 +1716,6 @@ msgstr ""
 msgid "RSS Feed %s was empty"
 msgstr "RSS-лента %s была пустой"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "Несовместимая лента"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "Обнаружена пустая запись RSS (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "Показать интерфейс"
@@ -3658,6 +3669,17 @@ msgstr ""
 msgid "Enable"
 msgstr "Включить"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/sr.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2023\n"
 "Language-Team: Serbian (https://app.transifex.com/sabnzbd/teams/111101/sr/)\n"
@@ -140,6 +140,11 @@ msgid ""
 "creates."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -726,6 +731,11 @@ msgid ""
 "problems."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr ""
@@ -953,7 +963,7 @@ msgid "Update Available!"
 msgstr "Нова верзија доступна!"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr ""
 
@@ -1664,6 +1674,14 @@ msgstr "Greška pri gašenju sistema"
 msgid "Received a DBus exception %s"
 msgstr ""
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "Nađen prazan RSS unos (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "Некомпатибилан Фид"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1690,14 +1708,6 @@ msgstr "Server %s koristi nepouzdan HTTPS sertifikat"
 msgid "RSS Feed %s was empty"
 msgstr "RSS фид %s је празан"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "Некомпатибилан Фид"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "Nađen prazan RSS unos (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "Pokaži interfejs"
@@ -3644,6 +3654,17 @@ msgstr ""
 msgid "Enable"
 msgstr "Омогући"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/sv.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2023\n"
 "Language-Team: Swedish (https://app.transifex.com/sabnzbd/teams/111101/sv/)\n"
@@ -140,6 +140,11 @@ msgid ""
 "creates."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -726,6 +731,11 @@ msgid ""
 "problems."
 msgstr ""
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr ""
@@ -955,7 +965,7 @@ msgid "Update Available!"
 msgstr "Uppdatering tillgänglig"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr ""
 
@@ -1670,6 +1680,14 @@ msgstr "Fel uppstod då systemet skulle stängas"
 msgid "Received a DBus exception %s"
 msgstr ""
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "Tom RSS post hittades (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "Inkompatibel feed"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1696,14 +1714,6 @@ msgstr "Server %s använder ett otillförlitlig HTTPS-certifikat"
 msgid "RSS Feed %s was empty"
 msgstr "RSS-flödet %s var tomt"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "Inkompatibel feed"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "Tom RSS post hittades (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "Visa gränssnitt"
@@ -3656,6 +3666,17 @@ msgstr ""
 msgid "Enable"
 msgstr "Aktivera"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/tr.po

@@ -3,14 +3,14 @@
 # 
 # Translators:
 # Taylan Tatlı, 2025
-# mauron, 2025
 # Safihre <safihre@sabnzbd.org>, 2025
+# mauron, 2026
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
-"Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
+"Last-Translator: mauron, 2026\n"
 "Language-Team: Turkish (https://app.transifex.com/sabnzbd/teams/111101/tr/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -151,6 +151,11 @@ msgstr ""
 "Güncel umask (%o), SABnzbd'nin oluşturduğu dosya ve dizinlere erişimini "
 "reddedebilir."
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr "SABnzbd'nin Windows ARM sürümü İndirmeler sayfamızda mevcuttur!"
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -777,6 +782,13 @@ msgid ""
 msgstr ""
 "%s özel karakterli dosya isimleri ile yazılamıyor. Bu, sorun oluşturabilir."
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+"%s aralıklı dosyaları desteklememektedir. Doğrudan yazma kipi devre dışı "
+"bırakılıyor."
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr "Şuradan bağlantı reddedildi:"
@@ -1008,7 +1020,7 @@ msgid "Update Available!"
 msgstr "Güncelleme Mevcut!"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr "Dosyanın gönderilmesi başarısız oldu: %s"
 
@@ -1733,6 +1745,14 @@ msgstr "Sistemin kapatılması esnasında hata"
 msgid "Received a DBus exception %s"
 msgstr "Bir DBUS istisnası alındı %s"
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "Boş RSS girdisi bulundu (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "Uyumsuz besleme"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1759,14 +1779,6 @@ msgstr "%s sunucusu güvenilmez bir HTTPS sertifikası kullanıyor"
 msgid "RSS Feed %s was empty"
 msgstr "%s RSS Beselemesi boştu"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "Uyumsuz besleme"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "Boş RSS girdisi bulundu (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "Arayüzü göster"
@@ -3376,6 +3388,8 @@ msgstr "SFV temelli kontrolleri etkinleştir"
 msgid ""
 "If no par2 files are available, use sfv files (if present) to verify files"
 msgstr ""
+"Eğer hiçbir par2 dosyası mevcut değilse, dosyaları kontrol etmek için "
+"(mevcutsa) sfv dosyalarını kullan"
 
 #: sabnzbd/skintext.py
 msgid "User script can flag job as failed"
@@ -3796,6 +3810,20 @@ msgstr ""
 msgid "Enable"
 msgstr "Etkinleştir"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr "Talep başı makale"
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+"Her bir cevabı beklemeden bağlantı başına birden fazla makale talep et.<br "
+"/>Bu, indirme hızlarını bilhassa yüksek gecikmeli bağlantılarda "
+"arttırabilir."
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/main/zh_CN.po

@@ -8,7 +8,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:49+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Chinese (China) (https://app.transifex.com/sabnzbd/teams/111101/zh_CN/)\n"
@@ -140,6 +140,11 @@ msgid ""
 "creates."
 msgstr "当前 umask (%o) 可能会拒绝 SABnzbd 访问其创建的文件和文件夹。"
 
+#. Warning message
+#: sabnzbd/__init__.py
+msgid "Windows ARM version of SABnzbd is available from our Downloads page!"
+msgstr ""
+
 #. Warning message
 #: sabnzbd/__init__.py
 msgid ""
@@ -726,6 +731,11 @@ msgid ""
 "problems."
 msgstr "%s 不可写入带有特殊字符的文件名。这可能会导致问题。"
 
+#. Warning message
+#: sabnzbd/filesystem.py
+msgid "%s does not support sparse files. Disabling direct write mode."
+msgstr ""
+
 #: sabnzbd/interface.py
 msgid "Refused connection from:"
 msgstr "拒绝来自以下的连接："
@@ -951,7 +961,7 @@ msgid "Update Available!"
 msgstr "有更新可用!"
 
 #. Error message
-#: sabnzbd/misc.py
+#: sabnzbd/misc.py, sabnzbd/skintext.py
 msgid "Failed to upload file: %s"
 msgstr "上传文件失败：%s"
 
@@ -1660,6 +1670,14 @@ msgstr "关闭系统时出错"
 msgid "Received a DBus exception %s"
 msgstr "收到 DBus 异常 %s"
 
+#: sabnzbd/rss.py
+msgid "Empty RSS entry found (%s)"
+msgstr "发现空的 RSS 条目 (%s)"
+
+#: sabnzbd/rss.py
+msgid "Incompatible feed"
+msgstr "feed 不兼容"
+
 #. Error message
 #: sabnzbd/rss.py
 msgid "Incorrect RSS feed description \"%s\""
@@ -1686,14 +1704,6 @@ msgstr "服务器 %s 使用的 HTTPS 证书不受信任"
 msgid "RSS Feed %s was empty"
 msgstr "RSS Feed %s 为空"
 
-#: sabnzbd/rss.py
-msgid "Incompatible feed"
-msgstr "feed 不兼容"
-
-#: sabnzbd/rss.py
-msgid "Empty RSS entry found (%s)"
-msgstr "发现空的 RSS 条目 (%s)"
-
 #: sabnzbd/sabtray.py, sabnzbd/sabtraylinux.py
 msgid "Show interface"
 msgstr "显示界面"
@@ -3605,6 +3615,17 @@ msgstr "对于不稳定的服务器，在失败后将会被忽略更长的时间
 msgid "Enable"
 msgstr "启用"
 
+#: sabnzbd/skintext.py
+msgid "Articles per request"
+msgstr ""
+
+#: sabnzbd/skintext.py
+msgid ""
+"Request multiple articles per connection without waiting for each response "
+"first.<br />This can improve download speeds, especially on connections with"
+" higher latency."
+msgstr ""
+
 #. Button: Remove server
 #: sabnzbd/skintext.py
 msgid "Remove Server"

po/nsis/SABnsis.pot

@@ -4,7 +4,7 @@
 #
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: team@sabnzbd.org\n"
 "Language-Team: SABnzbd <team@sabnzbd.org>\n"

po/nsis/cs.po

@@ -7,7 +7,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Czech (https://app.transifex.com/sabnzbd/teams/111101/cs/)\n"

po/nsis/da.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Danish (https://app.transifex.com/sabnzbd/teams/111101/da/)\n"

po/nsis/de.po

@@ -8,7 +8,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: German (https://app.transifex.com/sabnzbd/teams/111101/de/)\n"

po/nsis/es.po

@@ -7,7 +7,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Spanish (https://app.transifex.com/sabnzbd/teams/111101/es/)\n"

po/nsis/fi.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Finnish (https://app.transifex.com/sabnzbd/teams/111101/fi/)\n"

po/nsis/fr.po

@@ -7,7 +7,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: French (https://app.transifex.com/sabnzbd/teams/111101/fr/)\n"

po/nsis/he.po

@@ -7,7 +7,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Hebrew (https://app.transifex.com/sabnzbd/teams/111101/he/)\n"

po/nsis/it.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Italian (https://app.transifex.com/sabnzbd/teams/111101/it/)\n"

po/nsis/nb.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Norwegian Bokmål (https://app.transifex.com/sabnzbd/teams/111101/nb/)\n"

po/nsis/nl.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Dutch (https://app.transifex.com/sabnzbd/teams/111101/nl/)\n"

po/nsis/pl.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Polish (https://app.transifex.com/sabnzbd/teams/111101/pl/)\n"

po/nsis/pt_BR.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Portuguese (Brazil) (https://app.transifex.com/sabnzbd/teams/111101/pt_BR/)\n"

po/nsis/ro.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Romanian (https://app.transifex.com/sabnzbd/teams/111101/ro/)\n"

po/nsis/ru.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Russian (https://app.transifex.com/sabnzbd/teams/111101/ru/)\n"

po/nsis/sr.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Serbian (https://app.transifex.com/sabnzbd/teams/111101/sr/)\n"

po/nsis/sv.po

@@ -7,7 +7,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Swedish (https://app.transifex.com/sabnzbd/teams/111101/sv/)\n"

po/nsis/tr.po

@@ -7,7 +7,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Turkish (https://app.transifex.com/sabnzbd/teams/111101/tr/)\n"

po/nsis/zh_CN.po

@@ -6,7 +6,7 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: SABnzbd-4.6.0\n"
+"Project-Id-Version: SABnzbd-5.0.0\n"
 "PO-Revision-Date: 2020-06-27 15:56+0000\n"
 "Last-Translator: Safihre <safihre@sabnzbd.org>, 2025\n"
 "Language-Team: Chinese (China) (https://app.transifex.com/sabnzbd/teams/111101/zh_CN/)\n"

requirements.txt

@@ -1,16 +1,17 @@
 # Main requirements
 # Note that not all sub-dependencies are listed, but only ones we know could cause trouble
-apprise==1.9.6
-sabctools==9.1.0
+apprise==1.9.7
+sabctools==9.3.1
 CT3==3.4.0.post5
 cffi==2.0.0
-pycparser==2.23
+pycparser # Version-less for Python 3.9 and below
+pycparser==3.0; python_version > '3.9'
 feedparser==6.0.12
 configobj==5.0.9
 cheroot==11.1.2
 six==1.17.0
 cherrypy==18.10.0
-jaraco.functools==4.3.0
+jaraco.functools==4.4.0
 jaraco.collections==5.0.0
 jaraco.text==3.8.1 # Newer version introduces irrelevant extra dependencies
 jaraco.classes==3.4.0
@@ -32,12 +33,13 @@ rebulk==3.2.0
 
 # Recent cryptography versions require Rust. If you run into issues compiling this
 # SABnzbd will also work with older pre-Rust versions such as cryptography==3.3.2
-cryptography==46.0.3
+# Using older versions can have security implications!
+cryptography>=3.0
 
 # We recommend using "orjson" as it is 2x as fast as "ujson". However, it requires
 # Rust so SABnzbd works just as well with "ujson" or the Python built in "json" module
 ujson==5.11.0
-orjson==3.11.5
+orjson==3.11.7; python_version > '3.9'
 
 # Windows system integration
 pywin32==311; sys_platform == 'win32'
@@ -61,16 +63,16 @@ requests==2.32.5
 requests-oauthlib==2.0.0
 PyYAML==6.0.3
 markdown # Version-less for Python 3.9 and below
-markdown==3.10; python_version > '3.9'
+markdown==3.10.1; python_version > '3.9'
 paho-mqtt==1.6.1 # Pinned, newer versions don't work with AppRise yet
 
 # Requests Requirements
 charset_normalizer==3.4.4
 idna==3.11
-urllib3==2.6.2
-certifi==2025.11.12
+urllib3==2.6.3
+certifi==2026.1.4
 oauthlib==3.3.1
-PyJWT==2.10.1
+PyJWT==2.11.0
 blinker==1.9.0
 
 # Optional support for *nix tray icon.

sabnzbd/__init__.py

@@ -32,11 +32,12 @@ from threading import Lock, Condition
 # Determine platform flags
 ##############################################################################
 
-WINDOWS = MACOS = MACOSARM64 = FOUNDATION = False
+WINDOWS = WINDOWSARM64 = MACOS = MACOSARM64 = FOUNDATION = False
 KERNEL32 = LIBC = MACOSLIBC = PLATFORM = None
 
 if os.name == "nt":
     WINDOWS = True
+    WINDOWSARM64 = platform.uname().machine == "ARM64"
 
     if platform.uname().machine not in ["AMD64", "ARM64"]:
         print("SABnzbd only supports 64-bit Windows")
@@ -248,6 +249,7 @@ def initialize(pause_downloader=False, clean_up=False, repair=0):
 
     # Set call backs for Config items
     cfg.cache_limit.callback(cfg.new_limit)
+    cfg.direct_write.callback(cfg.new_direct_write)
     cfg.web_host.callback(cfg.guard_restart)
     cfg.web_port.callback(cfg.guard_restart)
     cfg.web_dir.callback(cfg.guard_restart)
@@ -269,7 +271,6 @@ def initialize(pause_downloader=False, clean_up=False, repair=0):
     cfg.language.callback(cfg.guard_language)
     cfg.enable_https_verification.callback(cfg.guard_https_ver)
     cfg.guard_https_ver()
-    cfg.pipelining_requests.callback(cfg.guard_restart)
 
     # Set language files
     lang.set_locale_info("SABnzbd", DIR_LANGUAGE)
@@ -303,6 +304,7 @@ def initialize(pause_downloader=False, clean_up=False, repair=0):
     sabnzbd.NzbQueue.read_queue(repair)
     sabnzbd.Scheduler.analyse(pause_downloader)
     sabnzbd.ArticleCache.new_limit(cfg.cache_limit.get_int())
+    sabnzbd.Assembler.new_limit(sabnzbd.ArticleCache.cache_info().cache_limit)
 
     logging.info("All processes started")
     sabnzbd.RESTART_REQ = False
@@ -315,6 +317,9 @@ def start():
         logging.debug("Starting postprocessor")
         sabnzbd.PostProcessor.start()
 
+        logging.debug("Starting article cache")
+        sabnzbd.ArticleCache.start()
+
         logging.debug("Starting assembler")
         sabnzbd.Assembler.start()
 
@@ -383,6 +388,13 @@ def halt():
         except Exception:
             pass
 
+        logging.debug("Stopping article cache")
+        sabnzbd.ArticleCache.stop()
+        try:
+            sabnzbd.ArticleCache.join(timeout=3)
+        except Exception:
+            pass
+
         logging.debug("Stopping postprocessor")
         sabnzbd.PostProcessor.stop()
         try:
@@ -482,6 +494,10 @@ def delayed_startup_actions():
             sabnzbd.ORG_UMASK,
         )
 
+    # Check if maybe we are running x64 version on ARM hardware
+    if sabnzbd.WINDOWSARM64 and "AMD64" in sys.version:
+        misc.helpful_warning(T("Windows ARM version of SABnzbd is available from our Downloads page!"))
+
     # List the number of certificates available (can take up to 1.5 seconds)
     if cfg.log_level() > 1:
         logging.debug("Available certificates = %s", repr(ssl.create_default_context().cert_store_stats()))
@@ -496,7 +512,7 @@ def delayed_startup_actions():
         logging.debug("Completed Download Folder %s is not on FAT", complete_dir)
 
     if filesystem.directory_is_writable(sabnzbd.cfg.download_dir.get_path()):
-        filesystem.check_filesystem_capabilities(sabnzbd.cfg.download_dir.get_path())
+        filesystem.check_filesystem_capabilities(sabnzbd.cfg.download_dir.get_path(), is_download_dir=True)
     if filesystem.directory_is_writable(sabnzbd.cfg.complete_dir.get_path()):
         filesystem.check_filesystem_capabilities(sabnzbd.cfg.complete_dir.get_path())
 

sabnzbd/api.py

@@ -20,6 +20,7 @@ sabnzbd.api - api
 """
 
 import os
+import sys
 import logging
 import re
 import gc
@@ -57,6 +58,7 @@ from sabnzbd.constants import (
     PP_LOOKUP,
     STAGES,
     DEF_NETWORKING_TEST_TIMEOUT,
+    DEF_PIPELINING_REQUESTS,
 )
 import sabnzbd.config as config
 import sabnzbd.cfg as cfg
@@ -79,6 +81,7 @@ from sabnzbd.misc import (
     clean_comma_separated_list,
     match_str,
     bool_conv,
+    get_platform_description,
 )
 from sabnzbd.filesystem import diskspace, get_ext, clip_path, remove_all, list_scripts, purge_log_files, pathbrowser
 from sabnzbd.encoding import xml_name, utob
@@ -689,9 +692,16 @@ LOG_HASH_RE = re.compile(rb"([a-zA-Z\d]{25})", re.I)
 
 def _api_showlog(name: str, kwargs: dict[str, Union[str, list[str]]]) -> bytes:
     """Fetch the INI and the log-data and add a message at the top"""
-    log_data = b"--------------------------------\n\n"
-    log_data += b"The log includes a copy of your sabnzbd.ini with\nall usernames, passwords and API-keys removed."
-    log_data += b"\n\n--------------------------------\n"
+    # Build header with version and environment info
+    header = "--------------------------------\n"
+    header += f"SABnzbd version: {sabnzbd.__version__}\n"
+    header += f"Commit: {sabnzbd.__baseline__}\n"
+    header += f"Python-version: {sys.version}\n"
+    header += f"Platform: {get_platform_description()}\n"
+    header += "--------------------------------\n\n"
+    header += "The log includes a copy of your sabnzbd.ini with\nall usernames, passwords and API-keys removed."
+    header += "\n\n--------------------------------\n"
+    log_data = header.encode("utf-8")
 
     if sabnzbd.LOGFILE and os.path.exists(sabnzbd.LOGFILE):
         with open(sabnzbd.LOGFILE, "rb") as f:
@@ -1309,6 +1319,7 @@ def test_nntp_server_dict(kwargs: dict[str, Union[str, list[str]]]) -> tuple[boo
     ssl = int_conv(kwargs.get("ssl", 0))
     ssl_verify = int_conv(kwargs.get("ssl_verify", 3))
     ssl_ciphers = kwargs.get("ssl_ciphers", "").strip()
+    pipelining_requests = int_conv(kwargs.get("pipelining_requests", DEF_PIPELINING_REQUESTS))
 
     if not host:
         return False, T("The hostname is not set.")
@@ -1345,6 +1356,7 @@ def test_nntp_server_dict(kwargs: dict[str, Union[str, list[str]]]) -> tuple[boo
             use_ssl=ssl,
             ssl_verify=ssl_verify,
             ssl_ciphers=ssl_ciphers,
+            pipelining_requests=lambda: pipelining_requests,
             username=username,
             password=password,
         )
@@ -1400,9 +1412,11 @@ def test_nntp_server_dict(kwargs: dict[str, Union[str, list[str]]]) -> tuple[boo
 
     try:
         nw.init_connect()
-        while not nw.connected:
+        while test_server.active:
             nw.write()
             nw.read(on_response=on_response)
+            if nw.ready:
+                break
 
     except socket.timeout:
         if port != 119 and not ssl:
@@ -1507,10 +1521,10 @@ def build_status(calculate_performance: bool = False, skip_dashboard: bool = Fal
     info["servers"] = []
     # Servers-list could be modified during iteration, so we need a copy
     for server in sabnzbd.Downloader.servers[:]:
-        activeconn = sum(nw.connected for nw in server.idle_threads.copy())
+        activeconn = sum(nw.ready for nw in server.idle_threads.copy())
         serverconnections = []
         for nw in server.busy_threads.copy():
-            if nw.connected:
+            if nw.ready:
                 activeconn += 1
             if article := nw.article:
                 serverconnections.append(

sabnzbd/articlecache.py

@@ -22,26 +22,39 @@ sabnzbd.articlecache - Article cache handling
 import logging
 import threading
 import struct
-from typing import Collection
+import time
+from typing import Collection, Optional
 
 import sabnzbd
+import sabnzbd.cfg as cfg
 from sabnzbd.decorators import synchronized
-from sabnzbd.constants import GIGI, ANFO, ASSEMBLER_WRITE_THRESHOLD
-from sabnzbd.nzb import Article
+from sabnzbd.constants import (
+    GIGI,
+    ANFO,
+    ARTICLE_CACHE_NON_CONTIGUOUS_FLUSH_PERCENTAGE,
+)
+from sabnzbd.nzb import Article, NzbFile
+from sabnzbd.misc import to_units
 
 # Operations on the article table are handled via try/except.
 # The counters need to be made atomic to ensure consistency.
 ARTICLE_COUNTER_LOCK = threading.RLock()
 
+_SECONDS_BETWEEN_FLUSHES = 0.5
 
-class ArticleCache:
+
+class ArticleCache(threading.Thread):
     def __init__(self):
+        super().__init__()
+        self.shutdown = False
+        self.__direct_write: bool = bool(cfg.direct_write())
         self.__cache_limit_org = 0
         self.__cache_limit = 0
         self.__cache_size = 0
-        self.__article_table: dict[Article, bytes] = {}  # Dict of buffered articles
-
-        self.assembler_write_trigger: int = 1
+        self.__article_table: dict[Article, bytearray] = {}  # Dict of buffered articles
+        self.__cache_size_cv: threading.Condition = threading.Condition(ARTICLE_COUNTER_LOCK)
+        self.__last_flush: float = 0
+        self.__non_contiguous_trigger: int = 0  # Force flush trigger
 
         # On 32 bit we only allow the user to set 1GB
         # For 64 bit we allow up to 4GB, in case somebody wants that
@@ -49,9 +62,62 @@ class ArticleCache:
         if sabnzbd.MACOS or sabnzbd.WINDOWS or (struct.calcsize("P") * 8) == 64:
             self.__cache_upper_limit = 4 * GIGI
 
-    def cache_info(self):
-        return ANFO(len(self.__article_table), abs(self.__cache_size), self.__cache_limit_org)
+    def change_direct_write(self, direct_write: bool) -> None:
+        self.__direct_write = direct_write and self.__cache_limit > 1
 
+    def stop(self):
+        self.shutdown = True
+        with self.__cache_size_cv:
+            self.__cache_size_cv.notify_all()
+
+    def should_flush(self) -> bool:
+        """
+        Should we flush the cache?
+        Only if direct write is supported and cache usage is over the upper limit.
+        Or the downloader is paused and cache is not empty.
+        """
+        return (
+            self.__direct_write
+            and self.__cache_limit
+            and (
+                self.__cache_size > self.__non_contiguous_trigger
+                or self.__cache_size
+                and sabnzbd.Downloader.no_active_jobs()
+            )
+        )
+
+    def flush_cache(self) -> None:
+        """In direct_write mode flush cache contents to file"""
+        forced: set[NzbFile] = set()
+        for article in self.__article_table.copy():
+            if not article.can_direct_write or article.nzf in forced:
+                continue
+            forced.add(article.nzf)
+            if time.monotonic() - self.__last_flush > 1:
+                logging.debug("Forcing write of %s", article.nzf.filepath)
+            sabnzbd.Assembler.process(article.nzf.nzo, article.nzf, allow_non_contiguous=True, article=article)
+        self.__last_flush = time.monotonic()
+
+    def run(self):
+        while True:
+            with self.__cache_size_cv:
+                self.__cache_size_cv.wait_for(
+                    lambda: self.shutdown or self.should_flush(),
+                    timeout=5.0,
+                )
+            if self.shutdown:
+                break
+            # Could be reached by timeout when paused and no further articles arrive
+            with self.__cache_size_cv:
+                if not self.should_flush():
+                    continue
+            self.flush_cache()
+            time.sleep(_SECONDS_BETWEEN_FLUSHES)
+
+    def cache_info(self):
+        return ANFO(len(self.__article_table), abs(self.__cache_size), self.__cache_limit)
+
+    @synchronized(ARTICLE_COUNTER_LOCK)
     def new_limit(self, limit: int):
         """Called when cache limit changes"""
         self.__cache_limit_org = limit
@@ -59,31 +125,32 @@ class ArticleCache:
             self.__cache_limit = self.__cache_upper_limit
         else:
             self.__cache_limit = min(limit, self.__cache_upper_limit)
-
-        # Set assembler_write_trigger to be the equivalent of ASSEMBLER_WRITE_THRESHOLD %
-        # of the total cache, assuming an article size of 750 000 bytes
-        self.assembler_write_trigger = int(self.__cache_limit * ASSEMBLER_WRITE_THRESHOLD / 100 / 750_000) + 1
-
-        logging.debug(
-            "Assembler trigger = %d",
-            self.assembler_write_trigger,
-        )
+        self.__non_contiguous_trigger = self.__cache_limit * ARTICLE_CACHE_NON_CONTIGUOUS_FLUSH_PERCENTAGE
+        if self.__cache_limit:
+            logging.debug("Article cache trigger:%s", to_units(self.__non_contiguous_trigger))
+        self.change_direct_write(cfg.direct_write())
 
     @synchronized(ARTICLE_COUNTER_LOCK)
-    def reserve_space(self, data_size: int):
+    def reserve_space(self, data_size: int) -> bool:
         """Reserve space in the cache"""
-        self.__cache_size += data_size
+        if (usage := self.__cache_size + data_size) > self.__cache_limit:
+            return False
+        self.__cache_size = usage
+        self.__cache_size_cv.notify_all()
+        return True
 
     @synchronized(ARTICLE_COUNTER_LOCK)
     def free_reserved_space(self, data_size: int):
         """Remove previously reserved space"""
         self.__cache_size -= data_size
+        self.__cache_size_cv.notify_all()
 
+    @synchronized(ARTICLE_COUNTER_LOCK)
     def space_left(self) -> bool:
         """Is there space left in the set limit?"""
         return self.__cache_size < self.__cache_limit
 
-    def save_article(self, article: Article, data: bytes):
+    def save_article(self, article: Article, data: bytearray):
         """Save article in cache, either memory or disk"""
         nzo = article.nzf.nzo
         # Skip if already post-processing or fully finished
@@ -91,7 +158,8 @@ class ArticleCache:
             return
 
         # Register article for bookkeeping in case the job is deleted
-        nzo.saved_articles.add(article)
+        with nzo.lock:
+            nzo.saved_articles.add(article)
 
         if article.lowest_partnum and not (article.nzf.import_finished or article.nzf.filename_checked):
             # Write the first-fetched articles to temporary file unless downloading
@@ -100,24 +168,17 @@ class ArticleCache:
             self.__flush_article_to_disk(article, data)
             return
 
-        if self.__cache_limit:
-            # Check if we exceed the limit
-            data_size = len(data)
-            self.reserve_space(data_size)
-            if self.space_left():
-                # Add new article to the cache
-                self.__article_table[article] = data
-            else:
-                # Return the space and save to disk
-                self.free_reserved_space(data_size)
-                self.__flush_article_to_disk(article, data)
+        # Check if we exceed the limit
+        if self.__cache_limit and self.reserve_space(len(data)):
+            # Add new article to the cache
+            self.__article_table[article] = data
         else:
             # No data saved in memory, direct to disk
             self.__flush_article_to_disk(article, data)
 
-    def load_article(self, article: Article):
+    def load_article(self, article: Article) -> Optional[bytearray]:
         """Load the data of the article"""
-        data = None
+        data: Optional[bytearray] = None
         nzo = article.nzf.nzo
 
         if article in self.__article_table:
@@ -131,9 +192,10 @@ class ArticleCache:
                 return data
         elif article.art_id:
             data = sabnzbd.filesystem.load_data(
-                article.art_id, nzo.admin_path, remove=True, do_pickle=False, silent=True
+                article.art_id, nzo.admin_path, remove=True, do_pickle=False, silent=True, mutable=True
             )
-        nzo.saved_articles.discard(article)
+        with nzo.lock:
+            nzo.saved_articles.discard(article)
         return data
 
     def flush_articles(self):
@@ -161,10 +223,16 @@ class ArticleCache:
             elif article.art_id:
                 sabnzbd.filesystem.remove_data(article.art_id, article.nzf.nzo.admin_path)
 
-    @staticmethod
-    def __flush_article_to_disk(article: Article, data):
+    def __flush_article_to_disk(self, article: Article, data: bytearray):
         # Save data, but don't complain when destination folder is missing
         # because this flush may come after completion of the NZO.
+        # Direct write to destination if cache is being used
+        if self.__cache_limit and self.__direct_write and sabnzbd.Assembler.assemble_article(article, data):
+            with article.nzf.nzo.lock:
+                article.nzf.nzo.saved_articles.discard(article)
+            return
+
+        # Fallback to disk cache
         sabnzbd.filesystem.save_data(
             data, article.get_art_id(), article.nzf.nzo.admin_path, do_pickle=False, silent=True
         )

sabnzbd/assembler.py

@@ -23,13 +23,16 @@ import os
 import queue
 import logging
 import re
+import threading
 from threading import Thread
 import ctypes
-from typing import Optional
+from typing import Optional, NamedTuple, Union
 import rarfile
+import time
 
+import sabctools
 import sabnzbd
-from sabnzbd.misc import get_all_passwords, match_str, SABRarFile
+from sabnzbd.misc import get_all_passwords, match_str, SABRarFile, to_units
 from sabnzbd.filesystem import (
     set_permissions,
     clip_path,
@@ -39,33 +42,222 @@ from sabnzbd.filesystem import (
     has_unwanted_extension,
     get_basename,
 )
-from sabnzbd.constants import Status, GIGI
+from sabnzbd.constants import (
+    Status,
+    GIGI,
+    ASSEMBLER_WRITE_THRESHOLD_FACTOR_APPEND,
+    ASSEMBLER_WRITE_THRESHOLD_FACTOR_DIRECT_WRITE,
+    ASSEMBLER_MAX_WRITE_THRESHOLD_DIRECT_WRITE,
+    SOFT_ASSEMBLER_QUEUE_LIMIT,
+    ASSEMBLER_DELAY_FACTOR_DIRECT_WRITE,
+    ARTICLE_CACHE_NON_CONTIGUOUS_FLUSH_PERCENTAGE,
+    ASSEMBLER_WRITE_INTERVAL,
+)
 import sabnzbd.cfg as cfg
-from sabnzbd.nzb import NzbFile, NzbObject
+from sabnzbd.nzb import NzbFile, NzbObject, Article
 import sabnzbd.par2file as par2file
 
 
+class AssemblerTask(NamedTuple):
+    nzo: Optional[NzbObject] = None
+    nzf: Optional[NzbFile] = None
+    file_done: bool = False
+    allow_non_contiguous: bool = False
+    direct_write: bool = False
+
+
 class Assembler(Thread):
     def __init__(self):
         super().__init__()
         self.max_queue_size: int = cfg.assembler_max_queue_size()
-        self.queue: queue.Queue[tuple[Optional[NzbObject], Optional[NzbFile], Optional[bool]]] = queue.Queue()
+        self.direct_write: bool = cfg.direct_write()
+        self.cache_limit: int = 0
+        # Contiguous bytes required to trigger append writes
+        self.append_trigger: int = 1
+        # Total bytes required to trigger direct-write assembles
+        self.direct_write_trigger: int = 1
+        self.delay_trigger: int = 1
+        self.queue: queue.Queue[AssemblerTask] = queue.Queue()
+        self.queued_lock = threading.Lock()
+        self.queued_nzf: set[str] = set()
+        self.queued_nzf_non_contiguous: set[str] = set()
+        self.queued_next_time: dict[str, float] = dict()
+        self.ready_bytes_lock = threading.Lock()
+        self.ready_bytes: dict[str, int] = dict()
 
     def stop(self):
-        self.queue.put((None, None, None))
+        self.queue.put(AssemblerTask())
 
-    def process(self, nzo: NzbObject, nzf: Optional[NzbFile] = None, file_done: Optional[bool] = None):
-        self.queue.put((nzo, nzf, file_done))
+    def new_limit(self, limit: int):
+        """Called when cache limit changes"""
+        self.cache_limit = limit
+        self.append_trigger = max(1, int(limit * ASSEMBLER_WRITE_THRESHOLD_FACTOR_APPEND))
+        self.direct_write_trigger = max(
+            1,
+            min(
+                max(1, int(limit * ASSEMBLER_WRITE_THRESHOLD_FACTOR_DIRECT_WRITE)),
+                ASSEMBLER_MAX_WRITE_THRESHOLD_DIRECT_WRITE,
+            ),
+        )
+        self.calculate_delay_trigger()
+        self.change_direct_write(cfg.direct_write())
+        logging.debug(
+            "Assembler trigger append=%s, direct=%s, delay=%s",
+            to_units(self.append_trigger),
+            to_units(self.direct_write_trigger),
+            to_units(self.delay_trigger),
+        )
 
-    def queue_level(self) -> float:
-        return self.queue.qsize() / self.max_queue_size
+    def change_direct_write(self, direct_write: bool) -> None:
+        self.direct_write = direct_write and self.direct_write_trigger > 1
+        self.calculate_delay_trigger()
+
+    def calculate_delay_trigger(self):
+        """Point at which downloader should start being delayed, recalculated when cache limit or direct write changes"""
+        self.delay_trigger = int(
+            max(
+                (
+                    750_000 * self.max_queue_size * ASSEMBLER_DELAY_FACTOR_DIRECT_WRITE
+                    if self.direct_write
+                    else 750_000 * self.max_queue_size
+                ),
+                (
+                    self.cache_limit * ARTICLE_CACHE_NON_CONTIGUOUS_FLUSH_PERCENTAGE
+                    if self.direct_write
+                    else min(self.append_trigger * self.max_queue_size, int(self.cache_limit * 0.5))
+                ),
+            )
+        )
+
+    def is_busy(self) -> bool:
+        """Returns True if the assembler thread has at least one NzbFile it is assembling"""
+        return bool(self.queued_nzf or self.queued_nzf_non_contiguous)
+
+    def total_ready_bytes(self) -> int:
+        with self.ready_bytes_lock:
+            return sum(self.ready_bytes.values())
+
+    def update_ready_bytes(self, nzf: NzbFile, delta: int) -> int:
+        with self.ready_bytes_lock:
+            cur = self.ready_bytes.get(nzf.nzf_id, 0) + delta
+            if cur <= 0:
+                self.ready_bytes.pop(nzf.nzf_id, None)
+            else:
+                self.ready_bytes[nzf.nzf_id] = cur
+            return cur
+
+    def clear_ready_bytes(self, *nzfs: NzbFile) -> None:
+        with self.ready_bytes_lock:
+            for nzf in nzfs:
+                self.ready_bytes.pop(nzf.nzf_id, None)
+                self.queued_next_time.pop(nzf.nzf_id, None)
+
+    def process(
+        self,
+        nzo: NzbObject = None,
+        nzf: Optional[NzbFile] = None,
+        file_done: bool = False,
+        allow_non_contiguous: bool = False,
+        article: Optional[Article] = None,
+    ) -> None:
+        if nzf is None:
+            # post-proc
+            self.queue.put(AssemblerTask(nzo))
+            return
+
+        # Track bytes pending being written for this nzf
+        if self.should_track_ready_bytes(article, allow_non_contiguous):
+            ready_bytes = self.update_ready_bytes(nzf, article.decoded_size)
+        else:
+            ready_bytes = 0
+
+        article_has_first_part = bool(article and article.lowest_partnum)
+        if article_has_first_part:
+            self.queued_next_time[nzf.nzf_id] = time.monotonic() + ASSEMBLER_WRITE_INTERVAL
+
+        if not self.should_queue_nzf(
+            nzf,
+            article_has_first_part=article_has_first_part,
+            filename_checked=nzf.filename_checked,
+            import_finished=nzf.import_finished,
+            file_done=file_done,
+            allow_non_contiguous=allow_non_contiguous,
+            ready_bytes=ready_bytes,
+        ):
+            return
+
+        with self.queued_lock:
+            # Recheck not already in the normal queue under lock, but always enqueue when file_done
+            if not file_done and nzf.nzf_id in self.queued_nzf:
+                return
+            if allow_non_contiguous:
+                if not file_done and nzf.nzf_id in self.queued_nzf_non_contiguous:
+                    return
+                self.queued_nzf_non_contiguous.add(nzf.nzf_id)
+            else:
+                self.queued_nzf.add(nzf.nzf_id)
+            self.queued_next_time[nzf.nzf_id] = time.monotonic() + ASSEMBLER_WRITE_INTERVAL
+        can_direct_write = self.direct_write and nzf.type == "yenc"
+        self.queue.put(AssemblerTask(nzo, nzf, file_done, allow_non_contiguous, can_direct_write))
+
+    def should_queue_nzf(
+        self,
+        nzf: NzbFile,
+        *,
+        article_has_first_part: bool,
+        filename_checked: bool,
+        import_finished: bool,
+        file_done: bool,
+        allow_non_contiguous: bool,
+        ready_bytes: int,
+    ) -> bool:
+        # Always queue if done
+        if file_done:
+            return True
+        if nzf.nzf_id in self.queued_nzf:
+            return False
+        # Always write
+        if article_has_first_part and filename_checked and not import_finished:
+            return True
+        next_ready = (next_article := nzf.assembler_next_article) and (next_article.decoded or next_article.on_disk)
+        # Trigger every 5 seconds if next article is decoded or on_disk
+        if next_ready and time.monotonic() > self.queued_next_time.get(nzf.nzf_id, 0):
+            return True
+        # Append
+        if not self.direct_write or nzf.type != "yenc":
+            return nzf.contiguous_ready_bytes() >= self.append_trigger
+        # Direct Write
+        if allow_non_contiguous:
+            return True
+        # Direct Write ready bytes trigger if next is also ready
+        if next_ready and ready_bytes >= self.direct_write_trigger:
+            return True
+        return False
+
+    @staticmethod
+    def should_track_ready_bytes(article: Optional[Article], allow_non_contiguous: bool) -> bool:
+        """"""
+        return article and not allow_non_contiguous and article.decoded_size
+
+    def delay(self) -> float:
+        """Calculate how long if at all the downloader thread should sleep to allow the assembler to catch up"""
+        ready_total = self.total_ready_bytes()
+        # Below trigger: no delay possible
+        if ready_total <= self.delay_trigger:
+            return 0
+        pressure = (ready_total - self.delay_trigger) / max(1.0, self.cache_limit - self.delay_trigger)
+        if pressure <= SOFT_ASSEMBLER_QUEUE_LIMIT:
+            return 0
+        # 50-100%: 0-0.25 seconds, capped at 0.15
+        sleep = min((pressure - SOFT_ASSEMBLER_QUEUE_LIMIT) / 2, 0.15)
+        return max(0.001, sleep)
 
     def run(self):
         while 1:
             # Set NzbObject and NzbFile objects to None so references
             # from this thread do not keep the objects alive (see #1628)
             nzo = nzf = None
-            nzo, nzf, file_done = self.queue.get()
+            nzo, nzf, file_done, allow_non_contiguous, direct_write = self.queue.get()
             if not nzo:
                 logging.debug("Shutting down assembler")
                 break
@@ -75,11 +267,15 @@ class Assembler(Thread):
                 if file_done and not sabnzbd.Downloader.paused:
                     self.diskspace_check(nzo, nzf)
 
-                # Prepare filepath
-                if filepath := nzf.prepare_filepath():
+                try:
+                    # Prepare filepath
+                    if not (filepath := nzf.prepare_filepath()):
+                        logging.debug("Prepare filepath failed for file %s in job %s", nzf.filename, nzo.final_name)
+                        continue
+
                     try:
                         logging.debug("Decoding part of %s", filepath)
-                        self.assemble(nzo, nzf, file_done)
+                        self.assemble(nzo, nzf, file_done, allow_non_contiguous, direct_write)
 
                         # Continue after partly written data
                         if not file_done:
@@ -122,9 +318,16 @@ class Assembler(Thread):
                     except Exception:
                         logging.error(T("Fatal error in Assembler"), exc_info=True)
                         break
+                finally:
+                    with self.queued_lock:
+                        if allow_non_contiguous:
+                            self.queued_nzf_non_contiguous.discard(nzf.nzf_id)
+                        else:
+                            self.queued_nzf.discard(nzf.nzf_id)
             else:
                 sabnzbd.NzbQueue.remove(nzo.nzo_id, cleanup=False)
                 sabnzbd.PostProcessor.process(nzo)
+                self.clear_ready_bytes(*nzo.files)
 
     @staticmethod
     def diskspace_check(nzo: NzbObject, nzf: NzbFile):
@@ -162,52 +365,116 @@ class Assembler(Thread):
             sabnzbd.emailer.diskfull_mail()
 
     @staticmethod
-    def assemble(nzo: NzbObject, nzf: NzbFile, file_done: bool):
+    def assemble(nzo: NzbObject, nzf: NzbFile, file_done: bool, allow_non_contiguous: bool, direct_write: bool) -> None:
         """Assemble a NZF from its table of articles
         1) Partial write: write what we have
         2) Nothing written before: write all
         """
+        load_article = sabnzbd.ArticleCache.load_article
+        downloader = sabnzbd.Downloader
+        decodetable = nzf.decodetable
+
+        fd: Optional[int] = None
+        skipped: bool = False  # have any articles been skipped
+        offset: int = 0  # sequential offset for append writes
+
+        try:
+            # Resume assembly from where we got to previously
+            for idx in range(nzf.assembler_next_index, len(decodetable)):
+                article = decodetable[idx]
 
-        # We write large article-sized chunks, so we can safely skip the buffering of Python
-        with open(nzf.filepath, "ab", buffering=0) as fout:
-            for article in nzf.decodetable:
                 # Break if deleted during writing
                 if nzo.status is Status.DELETED:
                     break
 
+                # allow_non_contiguous is when the cache forces the assembler to write all articles, even if it leaves gaps.
+                # In most cases we can stop at the first article that has not been tried, because they are requested in order.
+                # However, if we are paused then always consider the whole decodetable to ensure everything possible is written.
+                if allow_non_contiguous and not article.tries and not downloader.paused:
+                    break
+
                 # Skip already written articles
                 if article.on_disk:
+                    if fd is not None and article.decoded_size is not None:
+                        # Move the file descriptor forward past this article
+                        offset += article.decoded_size
+                    if not skipped:
+                        with nzf.lock:
+                            if nzf.assembler_next_index == idx:
+                                nzf.assembler_next_index = idx + 1
                     continue
 
-                # Write all decoded articles
-                if article.decoded:
-                    # Could be empty in case nzo was deleted
-                    if data := sabnzbd.ArticleCache.load_article(article):
-                        written = fout.write(data)
-
-                        # In raw/non-buffered mode fout.write may not write everything requested:
-                        # https://docs.python.org/3/library/io.html?highlight=write#io.RawIOBase.write
-                        while written < len(data):
-                            written += fout.write(data[written:])
-
-                        nzf.update_crc32(article.crc32, len(data))
-                        article.on_disk = True
-                    else:
-                        logging.info("No data found when trying to write %s", article)
-                else:
+                # stop if next piece not yet decoded
+                if not article.decoded:
                     # If the article was not decoded but the file
                     # is done, it is just a missing piece, so keep writing
                     if file_done:
                         continue
+                    # We reach an article that was not decoded
+                    if allow_non_contiguous:
+                        skipped = True
+                        continue
+                    break
+
+                # Could be empty in case nzo was deleted
+                data = load_article(article)
+                if not data:
+                    if file_done:
+                        continue
+                    if allow_non_contiguous:
+                        skipped = True
+                        continue
                     else:
-                        # We reach an article that was not decoded
+                        logging.info("No data found when trying to write %s", article)
+                    break
+
+                # If required open the file
+                if fd is None:
+                    fd, offset, direct_write = Assembler.open(
+                        nzf, direct_write and article.can_direct_write, article.file_size
+                    )
+                    if not direct_write and allow_non_contiguous:
+                        # Can only be allow_non_contiguous if we wanted direct_write, file_done will always be queued separately
                         break
 
+                if direct_write and article.can_direct_write:
+                    offset += Assembler.write(fd, idx, nzf, article, data)
+                else:
+                    if direct_write and skipped and not file_done:
+                        # If we have already skipped an article then need to abort, unless this is the final assemble
+                        break
+                    offset += Assembler.write(fd, idx, nzf, article, data, offset)
+
+        finally:
+            if fd is not None:
+                os.close(fd)
+
         # Final steps
         if file_done:
+            sabnzbd.Assembler.clear_ready_bytes(nzf)
             set_permissions(nzf.filepath)
             nzf.assembled = True
 
+    @staticmethod
+    def assemble_article(article: Article, data: bytearray) -> bool:
+        """Write a single article to disk"""
+        if not article.can_direct_write:
+            return False
+        nzf = article.nzf
+        with nzf.file_lock:
+            fd, _, direct_write = Assembler.open(nzf, True, article.file_size)
+            try:
+                if not direct_write:
+                    cfg.direct_write.set(False)
+                    return False
+                Assembler.write(fd, None, nzf, article, data)
+            except FileNotFoundError:
+                # nzo has probably been deleted, ArticleCache tries the fallback and handles it
+                return False
+            finally:
+                os.close(fd)
+        return True
+
     @staticmethod
     def check_encrypted_and_unwanted(nzo: NzbObject, nzf: NzbFile):
         """Encryption and unwanted extension detection"""
@@ -245,6 +512,71 @@ class Assembler(Thread):
                 nzo.fail_msg = T("Aborted, unwanted extension detected")
                 sabnzbd.NzbQueue.end_job(nzo)
 
+    @staticmethod
+    def write(
+        fd: int, nzf_index: Optional[int], nzf: NzbFile, article: Article, data: bytearray, offset: Optional[int] = None
+    ) -> int:
+        """Write data at position in a file"""
+        pos = article.data_begin if offset is None else offset
+        written = Assembler._write(fd, nzf, data, pos)
+        # In raw/non-buffered mode os.write may not write everything requested:
+        # https://docs.python.org/3/library/io.html?highlight=write#io.RawIOBase.write
+        if written < len(data) and (mv := memoryview(data)):
+            while written < len(data):
+                written += Assembler._write(fd, nzf, mv[written:], pos + written)
+
+        nzf.update_crc32(article.crc32, len(data))
+        article.on_disk = True
+        sabnzbd.Assembler.update_ready_bytes(nzf, -len(data))
+        with nzf.lock:
+            # assembler_next_index is the lowest index that has not yet been written sequentially from the start of the file.
+            # If this was the next required index to remain sequential, it can be incremented which allows the assembler to
+            # resume without rechecking articles that are already known to be on disk.
+            # If nzf_index is None, determine it now.
+            if nzf_index is None:
+                idx = nzf.assembler_next_index
+                if idx < len(nzf.decodetable) and article == nzf.decodetable[idx]:
+                    nzf_index = idx
+            if nzf_index is not None and nzf.assembler_next_index == nzf_index:
+                nzf.assembler_next_index += 1
+        return written
+
+    @staticmethod
+    def _write(fd: int, nzf: NzbFile, data: Union[bytearray, memoryview], offset: int) -> int:
+        if sabnzbd.WINDOWS:
+            # pwrite is not implemented on Windows so fallback to os.lseek and os.write
+            # Must lock since it is possible to write from multiple threads (assembler + downloader)
+            with nzf.file_lock:
+                os.lseek(fd, offset, os.SEEK_SET)
+                return os.write(fd, data)
+        else:
+            return os.pwrite(fd, data, offset)
+
+    @staticmethod
+    def open(nzf: NzbFile, direct_write: bool, file_size: int) -> tuple[int, int, bool]:
+        """Open file for nzf
+
+         Use direct_write if requested, with a fallback to setting the current file position for append mode
+        :returns (file_descriptor, current_offset, can_direct_write)
+        """
+        with nzf.file_lock:
+            # Get the current umask without changing it, to create a file with the same permissions as `with open(...)`
+            os.umask(os.umask(0))
+            fd = os.open(nzf.filepath, os.O_CREAT | os.O_WRONLY | getattr(os, "O_BINARY", 0), 0o666)
+            offset = nzf.contiguous_offset()
+            os.lseek(fd, offset, os.SEEK_SET)
+            if direct_write:
+                if not file_size:
+                    direct_write = False
+                if os.fstat(fd).st_size == 0:
+                    try:
+                        sabctools.sparse(fd, file_size)
+                    except OSError:
+                        logging.debug("Sparse call failed for %s", nzf.filepath)
+                        cfg.direct_write.set(False)
+                        direct_write = False
+            return fd, offset, direct_write
+
 
 RE_SUBS = re.compile(r"\W+sub|subs|subpack|subtitle|subtitles(?![a-z])", re.I)
 SAFE_EXTS = (".mkv", ".mp4", ".avi", ".wmv", ".mpg", ".webm")

sabnzbd/cfg.py

@@ -25,6 +25,7 @@ import re
 import argparse
 import socket
 import ipaddress
+import threading
 from typing import Union
 
 import sabnzbd
@@ -508,6 +509,7 @@ x_frame_options = OptionBool("misc", "x_frame_options", True)
 allow_old_ssl_tls = OptionBool("misc", "allow_old_ssl_tls", False)
 enable_season_sorting = OptionBool("misc", "enable_season_sorting", True)
 verify_xff_header = OptionBool("misc", "verify_xff_header", True)
+direct_write = OptionBool("misc", "direct_write", True)
 
 # Text values
 rss_odd_titles = OptionList("misc", "rss_odd_titles", ["nzbindex.nl/", "nzbindex.com/", "nzbclub.com/"])
@@ -535,7 +537,6 @@ ssdp_broadcast_interval = OptionNumber("misc", "ssdp_broadcast_interval", 15, mi
 ext_rename_ignore = OptionList("misc", "ext_rename_ignore", validation=lower_case_ext)
 unrar_parameters = OptionStr("misc", "unrar_parameters", validation=supported_unrar_parameters)
 outgoing_nntp_ip = OptionStr("misc", "outgoing_nntp_ip")
-pipelining_requests = OptionNumber("misc", "pipelining_requests", DEF_PIPELINING_REQUESTS, minval=1, maxval=10)
 
 
 ##############################################################################
@@ -744,6 +745,13 @@ def new_limit():
     if sabnzbd.__INITIALIZED__:
         # Only update after full startup
         sabnzbd.ArticleCache.new_limit(cache_limit.get_int())
+        sabnzbd.Assembler.new_limit(sabnzbd.ArticleCache.cache_info().cache_limit)
+
+
+def new_direct_write():
+    """Callback for direct write changes"""
+    sabnzbd.Assembler.change_direct_write(bool(direct_write()))
+    sabnzbd.ArticleCache.change_direct_write(bool(direct_write()))
 
 
 def guard_restart():

sabnzbd/config.py

@@ -42,6 +42,7 @@ from sabnzbd.constants import (
     CONFIG_BACKUP_HTTPS,
     DEF_INI_FILE,
     DEF_SORTER_RENAME_SIZE,
+    DEF_PIPELINING_REQUESTS,
 )
 from sabnzbd.decorators import synchronized
 from sabnzbd.filesystem import clip_path, real_path, create_real_path, renamer, remove_file, is_writable
@@ -209,7 +210,8 @@ class OptionBool(Option):
         super().set(sabnzbd.misc.bool_conv(value))
 
     def __call__(self) -> int:
-        """get() replacement"""
+        """Many places assume 0/1 is used for historical reasons.
+        Using pure bools breaks in random places"""
         return int(self.get())
 
 
@@ -444,6 +446,7 @@ class ConfigServer:
         self.enable = OptionBool(name, "enable", True, add=False)
         self.required = OptionBool(name, "required", False, add=False)
         self.optional = OptionBool(name, "optional", False, add=False)
+        self.pipelining_requests = OptionNumber(name, "pipelining_requests", DEF_PIPELINING_REQUESTS, 1, 20, add=False)
         self.retention = OptionNumber(name, "retention", 0, add=False)
         self.expire_date = OptionStr(name, "expire_date", add=False)
         self.quota = OptionStr(name, "quota", add=False)
@@ -476,6 +479,7 @@ class ConfigServer:
             "enable",
             "required",
             "optional",
+            "pipelining_requests",
             "retention",
             "expire_date",
             "quota",
@@ -511,6 +515,7 @@ class ConfigServer:
         output_dict["enable"] = self.enable()
         output_dict["required"] = self.required()
         output_dict["optional"] = self.optional()
+        output_dict["pipelining_requests"] = self.pipelining_requests()
         output_dict["retention"] = self.retention()
         output_dict["expire_date"] = self.expire_date()
         output_dict["quota"] = self.quota()

sabnzbd/constants.py

@@ -50,7 +50,7 @@ RENAMES_FILE = "__renames__"
 ATTRIB_FILE = "SABnzbd_attrib"
 REPAIR_REQUEST = "repair-all.sab"
 
-SABCTOOLS_VERSION_REQUIRED = "9.1.0"
+SABCTOOLS_VERSION_REQUIRED = "9.3.1"
 
 DB_HISTORY_VERSION = 1
 DB_HISTORY_NAME = "history%s.db" % DB_HISTORY_VERSION
@@ -100,10 +100,16 @@ CONFIG_BACKUP_HTTPS = {  # "basename": "associated setting"
 DEF_MAX_ASSEMBLER_QUEUE = 12
 SOFT_ASSEMBLER_QUEUE_LIMIT = 0.5
 # Percentage of cache to use before adding file to assembler
-ASSEMBLER_WRITE_THRESHOLD = 5
+ASSEMBLER_WRITE_THRESHOLD_FACTOR_APPEND = 0.05
+ASSEMBLER_WRITE_THRESHOLD_FACTOR_DIRECT_WRITE = 0.75
+ASSEMBLER_MAX_WRITE_THRESHOLD_DIRECT_WRITE = int(1 * GIGI)
+ASSEMBLER_DELAY_FACTOR_DIRECT_WRITE = 1.5
+ASSEMBLER_WRITE_INTERVAL = 5.0
 NNTP_BUFFER_SIZE = int(256 * KIBI)
 NTTP_MAX_BUFFER_SIZE = int(10 * MEBI)
-DEF_PIPELINING_REQUESTS = 2
+DEF_PIPELINING_REQUESTS = 1
+# Article cache capacity factor to force a non-contiguous flush to disk
+ARTICLE_CACHE_NON_CONTIGUOUS_FLUSH_PERCENTAGE = 0.9
 
 REPAIR_PRIORITY = 3
 FORCE_PRIORITY = 2

sabnzbd/database.py

@@ -114,6 +114,12 @@ class HistoryDB:
                 _ = self.execute("PRAGMA user_version = 5;") and self.execute(
                     "ALTER TABLE history ADD COLUMN time_added INTEGER;"
                 )
+            if version < 6:
+                _ = (
+                    self.execute("PRAGMA user_version = 6;")
+                    and self.execute("CREATE UNIQUE INDEX idx_history_nzo_id ON history(nzo_id);")
+                    and self.execute("CREATE INDEX idx_history_archive_completed ON history(archive, completed DESC);")
+                )
 
             HistoryDB.startup_done = True
 
@@ -160,8 +166,7 @@ class HistoryDB:
 
     def create_history_db(self):
         """Create a new (empty) database file"""
-        self.execute(
-            """
+        self.execute("""
         CREATE TABLE history (
             "id" INTEGER PRIMARY KEY,
             "completed" INTEGER NOT NULL,
@@ -194,9 +199,10 @@ class HistoryDB:
             "archive" INTEGER,
             "time_added" INTEGER
         )
-        """
-        )
-        self.execute("PRAGMA user_version = 5;")
+        """)
+        self.execute("PRAGMA user_version = 6;")
+        self.execute("CREATE UNIQUE INDEX idx_history_nzo_id ON history(nzo_id);")
+        self.execute("CREATE INDEX idx_history_archive_completed ON history(archive, completed DESC);")
 
     def close(self):
         """Close database connection"""
@@ -369,33 +375,34 @@ class HistoryDB:
 
     def have_duplicate_key(self, duplicate_key: str) -> bool:
         """Check whether History contains this duplicate key"""
-        total = 0
         if self.execute(
             """
-            SELECT COUNT(*) 
-            FROM History 
-            WHERE 
-                duplicate_key = ? AND 
-                STATUS != ?""",
+            SELECT EXISTS(
+                SELECT 1
+                FROM history
+                WHERE duplicate_key = ? AND status != ?
+            ) as found
+            """,
             (duplicate_key, Status.FAILED),
         ):
-            total = self.cursor.fetchone()["COUNT(*)"]
-        return total > 0
+            return bool(self.cursor.fetchone()["found"])
+        return False
 
     def have_name_or_md5sum(self, name: str, md5sum: str) -> bool:
         """Check whether this name or md5sum is already in History"""
-        total = 0
         if self.execute(
             """
-            SELECT COUNT(*) 
-            FROM History 
-            WHERE 
-                ( LOWER(name) = LOWER(?) OR md5sum = ? ) AND 
-                STATUS != ?""",
+            SELECT EXISTS(
+                SELECT 1
+                FROM history
+                WHERE (name = ? COLLATE NOCASE OR md5sum = ?)
+                  AND status != ?
+            ) as found
+            """,
             (name, md5sum, Status.FAILED),
         ):
-            total = self.cursor.fetchone()["COUNT(*)"]
-        return total > 0
+            return bool(self.cursor.fetchone()["found"])
+        return False
 
     def get_history_size(self) -> tuple[int, int, int]:
         """Returns the total size of the history and

sabnzbd/decoder.py

@@ -163,6 +163,7 @@ def decode_yenc(article: Article, response: sabctools.NNTPResponse) -> bytearray
     article.file_size = response.file_size
     article.data_begin = response.part_begin
     article.data_size = response.part_size
+    article.decoded_size = response.bytes_decoded
 
     nzf = article.nzf
     # Assume it is yenc
@@ -198,6 +199,7 @@ def decode_uu(article: Article, response: sabctools.NNTPResponse) -> bytearray:
         raise BadData(response.data)
 
     decoded_data = response.data
+    article.decoded_size = response.bytes_decoded
     nzf = article.nzf
     nzf.type = "uu"
 

sabnzbd/decorators.py

@@ -20,10 +20,9 @@
 ##############################################################################
 import time
 import functools
-from typing import Union, Callable
+from typing import Union, Callable, Any
 from threading import Lock, RLock, Condition
 
-
 # All operations that modify the queue need to happen in a lock
 # Also used when importing NZBs to prevent IO-race conditions
 # Names of wrapper-functions should be the same in misc.caller_name
@@ -35,15 +34,21 @@ DOWNLOADER_CV = Condition(NZBQUEUE_LOCK)
 DOWNLOADER_LOCK = RLock()
 
 
-def synchronized(lock: Union[Lock, RLock]):
+def synchronized(lock: Union[Lock, RLock, Condition, None] = None):
     def wrap(func: Callable):
         def call_func(*args, **kw):
-            # Using the try/finally approach is 25% faster compared to using "with lock"
+            # Either use the supplied lock or the object-specific one
+            # Because it's a variable in the upper function, we cannot use it directly
+            lock_obj = lock
+            if not lock_obj:
+                lock_obj = getattr(args[0], "lock")
+
+            # Using try/finally is ~25% faster than "with lock"
             try:
-                lock.acquire()
+                lock_obj.acquire()
                 return func(*args, **kw)
             finally:
-                lock.release()
+                lock_obj.release()
 
         return call_func
 

sabnzbd/deobfuscate_filenames.py

@@ -27,6 +27,7 @@ files to the job-name in the queue if the filename looks obfuscated
 Based on work by P1nGu1n
 
 """
+
 import hashlib
 import logging
 import os

sabnzbd/downloader.py

@@ -28,7 +28,7 @@ import sys
 import ssl
 import time
 from datetime import date
-from typing import Optional, Union, Deque
+from typing import Optional, Union, Deque, Callable
 
 import sabctools
 
@@ -37,10 +37,8 @@ from sabnzbd.decorators import synchronized, NzbQueueLocker, DOWNLOADER_CV, DOWN
 from sabnzbd.newswrapper import NewsWrapper, NNTPPermanentError
 import sabnzbd.config as config
 import sabnzbd.cfg as cfg
-from sabnzbd.misc import from_units, helpful_warning, int_conv, MultiAddQueue
+from sabnzbd.misc import from_units, helpful_warning, int_conv, MultiAddQueue, to_units
 from sabnzbd.get_addrinfo import get_fastest_addrinfo, AddrInfo
-from sabnzbd.constants import SOFT_ASSEMBLER_QUEUE_LIMIT
-
 
 # Timeout penalty in minutes for each cause
 _PENALTY_UNKNOWN = 3  # Unknown cause
@@ -85,6 +83,7 @@ class Server:
         "retention",
         "username",
         "password",
+        "pipelining_requests",
         "busy_threads",
         "next_busy_threads_check",
         "idle_threads",
@@ -113,6 +112,7 @@ class Server:
         use_ssl,
         ssl_verify,
         ssl_ciphers,
+        pipelining_requests,
         username=None,
         password=None,
         required=False,
@@ -137,6 +137,7 @@ class Server:
         self.retention: int = retention
         self.username: Optional[str] = username
         self.password: Optional[str] = password
+        self.pipelining_requests: Callable[[], int] = pipelining_requests
 
         self.busy_threads: set[NewsWrapper] = set()
         self.next_busy_threads_check: float = 0
@@ -170,7 +171,6 @@ class Server:
     def stop(self):
         """Remove all connections and cached articles from server"""
         for nw in self.idle_threads:
-            sabnzbd.Downloader.remove_socket(nw)
             nw.hard_reset()
         self.idle_threads = set()
         self.reset_article_queue()
@@ -188,8 +188,12 @@ class Server:
             if self.article_queue:
                 article = self.article_queue[0] if peek else self.article_queue.popleft()
                 # Mark expired articles as tried on this server
-                if not peek and self.retention and article.nzf.nzo.avg_stamp < time.time() - self.retention:
-                    sabnzbd.Downloader.decode(article)
+                if self.retention and article.nzf.nzo.avg_stamp < time.time() - self.retention:
+                    if not peek:
+                        sabnzbd.Downloader.decode(article)
+                    # sabnzbd.NzbQueue.get_articles stops after each nzo with articles.
+                    # As a result, if one article is out of retention, all remaining
+                    # entries in article_queue will also be out of retention.
                     while self.article_queue:
                         sabnzbd.Downloader.decode(self.article_queue.pop())
                 else:
@@ -296,7 +300,12 @@ class Downloader(Thread):
 
         self.force_disconnect: bool = False
 
-        self.selector: selectors.DefaultSelector = selectors.DefaultSelector()
+        # macOS/BSD will default to KqueueSelector, it's very efficient but produces separate events for READ and WRITE.
+        # Which causes problems when two receive threads are both trying to use the connection while it is resetting.
+        if selectors.DefaultSelector is getattr(selectors, "KqueueSelector", None):
+            self.selector: selectors.BaseSelector = selectors.PollSelector()
+        else:
+            self.selector: selectors.BaseSelector = selectors.DefaultSelector()
 
         self.servers: list[Server] = []
         self.timers: dict[str, list[float]] = {}
@@ -325,6 +334,7 @@ class Downloader(Thread):
             ssl = srv.ssl()
             ssl_verify = srv.ssl_verify()
             ssl_ciphers = srv.ssl_ciphers()
+            pipelining_requests = srv.pipelining_requests
             username = srv.username()
             password = srv.password()
             required = srv.required()
@@ -355,6 +365,7 @@ class Downloader(Thread):
                     ssl,
                     ssl_verify,
                     ssl_ciphers,
+                    pipelining_requests,
                     username,
                     password,
                     required,
@@ -370,6 +381,8 @@ class Downloader(Thread):
     def add_socket(self, nw: NewsWrapper):
         """Add a socket to be watched for read or write availability"""
         if nw.nntp:
+            nw.server.idle_threads.discard(nw)
+            nw.server.busy_threads.add(nw)
             try:
                 self.selector.register(nw.nntp.fileno, selectors.EVENT_READ | selectors.EVENT_WRITE, nw)
                 nw.selector_events = selectors.EVENT_READ | selectors.EVENT_WRITE
@@ -379,7 +392,7 @@ class Downloader(Thread):
     @synchronized(DOWNLOADER_LOCK)
     def modify_socket(self, nw: NewsWrapper, events: int):
         """Modify the events socket are watched for"""
-        if nw.nntp and nw.selector_events != events:
+        if nw.nntp and nw.selector_events != events and not nw.blocking:
             try:
                 self.selector.modify(nw.nntp.fileno, events, nw)
                 nw.selector_events = events
@@ -390,6 +403,9 @@ class Downloader(Thread):
     def remove_socket(self, nw: NewsWrapper):
         """Remove a socket to be watched"""
         if nw.nntp:
+            nw.server.busy_threads.discard(nw)
+            nw.server.idle_threads.add(nw)
+            nw.timeout = None
             try:
                 self.selector.unregister(nw.nntp.fileno)
                 nw.selector_events = 0
@@ -644,12 +660,12 @@ class Downloader(Thread):
                         if not server.get_article(peek=True):
                             break
 
-                        server.idle_threads.remove(nw)
-                        server.busy_threads.add(nw)
-
                         if nw.connected:
+                            # Assign a request immediately if NewsWrapper is ready, if we wait until the socket is
+                            # selected all idle connections will be activated when there may only be one request
+                            nw.prepare_request()
                             self.add_socket(nw)
-                        else:
+                        elif not nw.nntp:
                             try:
                                 logging.info("%s@%s: Initiating connection", nw.thrdnum, server.host)
                                 nw.init_connect()
@@ -744,24 +760,43 @@ class Downloader(Thread):
         # Drop stale items
         if nw.generation != generation:
             return
-        if event & selectors.EVENT_READ:
+
+        # Read on EVENT_READ, or on EVENT_WRITE if TLS needs a write to complete a read
+        if (event & selectors.EVENT_READ) or (event & selectors.EVENT_WRITE and nw.tls_wants_write):
             self.process_nw_read(nw, generation)
             # If read caused a reset, don't proceed to write
             if nw.generation != generation:
                 return
-        if event & selectors.EVENT_WRITE:
+            # The read may have removed the socket, so prevent calling prepare_request again
+            if not (nw.selector_events & selectors.EVENT_WRITE):
+                return
+
+        # Only attempt app-level writes if TLS is not blocked
+        if (event & selectors.EVENT_WRITE) and not nw.tls_wants_write:
             nw.write()
 
     def process_nw_read(self, nw: NewsWrapper, generation: int) -> None:
         bytes_received: int = 0
         bytes_pending: int = 0
 
-        while nw.decoder and nw.generation == generation:
+        while (
+            nw.connected
+            and nw.generation == generation
+            and not self.force_disconnect
+            and not self.shutdown
+            and not (nw.timeout and time.time() > nw.timeout)
+        ):
             try:
                 n, bytes_pending = nw.read(nbytes=bytes_pending, generation=generation)
                 bytes_received += n
+                nw.tls_wants_write = False
             except ssl.SSLWantReadError:
                 return
+            except ssl.SSLWantWriteError:
+                # TLS needs to write handshake/key-update data before we can continue reading
+                nw.tls_wants_write = True
+                self.modify_socket(nw, selectors.EVENT_READ | selectors.EVENT_WRITE)
+                return
             except (ConnectionError, ConnectionAbortedError):
                 # The ConnectionAbortedError is also thrown by sabctools in case of fatal SSL-layer problems
                 self.reset_nw(nw, "Server closed connection", wait=False)
@@ -791,33 +826,38 @@ class Downloader(Thread):
                 and sabnzbd.BPSMeter.bps + sabnzbd.BPSMeter.sum_cached_amount > self.bandwidth_limit
             ):
                 sabnzbd.BPSMeter.update()
-                while sabnzbd.BPSMeter.bps > self.bandwidth_limit:
+                while self.bandwidth_limit and sabnzbd.BPSMeter.bps > self.bandwidth_limit:
                     time.sleep(0.01)
                     sabnzbd.BPSMeter.update()
 
     def check_assembler_levels(self):
         """Check the Assembler queue to see if we need to delay, depending on queue size"""
-        if (assembler_level := sabnzbd.Assembler.queue_level()) > SOFT_ASSEMBLER_QUEUE_LIMIT:
-            time.sleep(min((assembler_level - SOFT_ASSEMBLER_QUEUE_LIMIT) / 4, 0.15))
-            sabnzbd.BPSMeter.delayed_assembler += 1
-            logged_counter = 0
+        if not sabnzbd.Assembler.is_busy() or (delay := sabnzbd.Assembler.delay()) <= 0:
+            return
+        time.sleep(delay)
+        sabnzbd.BPSMeter.delayed_assembler += 1
+        start_time = time.monotonic()
+        deadline = start_time + 5
+        next_log = start_time + 1.0
+        logged_counter = 0
 
-            while not self.shutdown and sabnzbd.Assembler.queue_level() >= 1:
-                # Only log/update once every second, to not waste any CPU-cycles
-                if not logged_counter % 10:
-                    # Make sure the BPS-meter is updated
-                    sabnzbd.BPSMeter.update()
-
-                    # Update who is delaying us
-                    logging.debug(
-                        "Delayed - %d seconds - Assembler queue: %d",
-                        logged_counter / 10,
-                        sabnzbd.Assembler.queue.qsize(),
-                    )
-
-                # Wait and update the queue sizes
-                time.sleep(0.1)
+        while not self.shutdown and sabnzbd.Assembler.is_busy() and time.monotonic() < deadline:
+            if (delay := sabnzbd.Assembler.delay()) <= 0:
+                break
+            # Sleep for the current delay (but cap to remaining time)
+            sleep_time = max(0.001, min(delay, deadline - time.monotonic()))
+            time.sleep(sleep_time)
+            # Make sure the BPS-meter is updated
+            sabnzbd.BPSMeter.update()
+            # Only log/update once every second
+            if time.monotonic() >= next_log:
                 logged_counter += 1
+                logging.debug(
+                    "Delayed - %d seconds - Assembler queue: %s",
+                    logged_counter,
+                    to_units(sabnzbd.Assembler.total_ready_bytes()),
+                )
+                next_log += 1.0
 
     @synchronized(DOWNLOADER_LOCK)
     def finish_connect_nw(self, nw: NewsWrapper, response: sabctools.NNTPResponse) -> bool:
@@ -920,13 +960,6 @@ class Downloader(Thread):
         elif reset_msg:
             logging.debug("Thread %s@%s: %s", nw.thrdnum, nw.server.host, reset_msg)
 
-        # Make sure this NewsWrapper is in the idle threads
-        nw.server.busy_threads.discard(nw)
-        nw.server.idle_threads.add(nw)
-
-        # Make sure it is not in the readable sockets
-        self.remove_socket(nw)
-
         # Discard the article request which failed
         nw.discard(article, count_article_try=count_article_try, retry_article=retry_article)
 

sabnzbd/emailer.py

@@ -255,8 +255,7 @@ def diskfull_mail():
     """Send email about disk full, no templates"""
     if cfg.email_full():
         return send_email(
-            T(
-                """To: %s
+            T("""To: %s
 From: %s
 Date: %s
 Subject: SABnzbd reports Disk Full
@@ -266,9 +265,7 @@ Hi,
 SABnzbd has stopped downloading, because the disk is almost full.
 Please make room and resume SABnzbd manually.
 
-"""
-            )
-            % (cfg.email_to.get_string(), cfg.email_from(), get_email_date()),
+""") % (cfg.email_to.get_string(), cfg.email_from(), get_email_date()),
             cfg.email_to(),
         )
     else:

sabnzbd/filesystem.py

@@ -18,6 +18,7 @@
 """
 sabnzbd.misc - filesystem operations
 """
+
 import gzip
 import os
 import pickle
@@ -42,6 +43,7 @@ try:
 except ImportError:
     pass
 
+import sabctools
 import sabnzbd
 from sabnzbd.decorators import synchronized, conditional_cache
 from sabnzbd.constants import (
@@ -56,7 +58,6 @@ from sabnzbd.constants import (
 from sabnzbd.encoding import correct_unknown_encoding, utob, limit_encoded_length
 import rarfile
 
-
 # For Windows: determine executable extensions
 if os.name == "nt":
     PATHEXT = os.environ.get("PATHEXT", "").lower().split(";")
@@ -1081,7 +1082,14 @@ def save_data(data: Any, _id: str, path: str, do_pickle: bool = True, silent: bo
                 time.sleep(0.1)
 
 
-def load_data(data_id: str, path: str, remove: bool = True, do_pickle: bool = True, silent: bool = False) -> Any:
+def load_data(
+    data_id: str,
+    path: str,
+    remove: bool = True,
+    do_pickle: bool = True,
+    silent: bool = False,
+    mutable: bool = False,
+) -> Any:
     """Read data from disk file"""
     path = os.path.join(path, data_id)
 
@@ -1100,6 +1108,9 @@ def load_data(data_id: str, path: str, remove: bool = True, do_pickle: bool = Tr
                 except UnicodeDecodeError:
                     # Could be Python 2 data that we can load using old encoding
                     data = pickle.load(data_file, encoding="latin1")
+            elif mutable:
+                data = bytearray(os.fstat(data_file.fileno()).st_size)
+                data_file.readinto(data)
             else:
                 data = data_file.read()
 
@@ -1222,7 +1233,7 @@ def directory_is_writable(test_dir: str) -> bool:
     return True
 
 
-def check_filesystem_capabilities(test_dir: str) -> bool:
+def check_filesystem_capabilities(test_dir: str, is_download_dir: bool = False) -> bool:
     """Checks if we can write long and unicode filenames to the given directory.
     If not on Windows, also check for special chars like slashes and :
     Returns True if all OK, otherwise False"""
@@ -1250,9 +1261,24 @@ def check_filesystem_capabilities(test_dir: str) -> bool:
         )
         allgood = False
 
+    # sparse files allow efficient use of empty space in files
+    if is_download_dir and not check_sparse_and_disable(test_dir):
+        # Writing to correct file offsets will be disabled, and it won't be possible to flush the article cache
+        # directly to the destination file
+        sabnzbd.misc.helpful_warning(T("%s does not support sparse files. Disabling direct write mode."), test_dir)
+        allgood = False
+
     return allgood
 
 
+def check_sparse_and_disable(test_dir: str) -> bool:
+    """Check if sparse files are supported, otherwise disable direct write mode"""
+    if sabnzbd.cfg.direct_write() and not is_sparse_supported(test_dir):
+        sabnzbd.cfg.direct_write.set(False)
+        return False
+    return True
+
+
 def get_win_drives() -> list[str]:
     """Return list of detected drives, adapted from:
     http://stackoverflow.com/questions/827371/is-there-a-way-to-list-all-the-available-drive-letters-in-python/827490
@@ -1378,43 +1404,33 @@ def create_work_name(name: str) -> str:
         return name.strip()
 
 
-def nzf_cmp_name(nzf1, nzf2):
-    """Comparison function for sorting NZB files.
-    The comparison will sort .par2 files to the top of the queue followed by .rar files,
-    they will then be sorted by name.
+def is_sparse(path: str) -> bool:
+    """Check if a path is a sparse file"""
+    info = os.stat(path)
+    if sabnzbd.WINDOWS:
+        return bool(info.st_file_attributes & stat.FILE_ATTRIBUTE_SPARSE_FILE)
 
-    Note: nzf1 and nzf2 should be NzbFile objects, but we can't import that here
-    to avoid circular dependencies.
-    """
-    nzf1_name = nzf1.filename.lower()
-    nzf2_name = nzf2.filename.lower()
+    # Linux and macOS
+    if info.st_blocks * 512 < info.st_size:
+        return True
 
-    # Determine vol-pars
-    is_par1 = ".vol" in nzf1_name and ".par2" in nzf1_name
-    is_par2 = ".vol" in nzf2_name and ".par2" in nzf2_name
+    # Filesystem with SEEK_HOLE (ZFS)
+    try:
+        with open(path, "rb") as f:
+            pos = f.seek(0, os.SEEK_HOLE)
+            return pos < info.st_size
+    except (AttributeError, OSError):
+        pass
 
-    # mini-par2 in front
-    if not is_par1 and nzf1_name.endswith(".par2"):
-        return -1
-    if not is_par2 and nzf2_name.endswith(".par2"):
-        return 1
+    return False
 
-    # vol-pars go to the back
-    if is_par1 and not is_par2:
-        return 1
-    if is_par2 and not is_par1:
-        return -1
 
-    # Prioritize .rar files above any other type of file (other than vol-par)
-    m1 = RAR_RE.search(nzf1_name)
-    m2 = RAR_RE.search(nzf2_name)
-    if m1 and not (is_par2 or m2):
-        return -1
-    elif m2 and not (is_par1 or m1):
-        return 1
-    # Force .rar to come before 'r00'
-    if m1 and m1.group(1) == ".rar":
-        nzf1_name = nzf1_name.replace(".rar", ".r//")
-    if m2 and m2.group(1) == ".rar":
-        nzf2_name = nzf2_name.replace(".rar", ".r//")
-    return sabnzbd.misc.cmp(nzf1_name, nzf2_name)
+def is_sparse_supported(check_dir: str) -> bool:
+    """Check if a directory supports sparse files"""
+    sparse_file = tempfile.NamedTemporaryFile(dir=check_dir, delete=False)
+    try:
+        sabctools.sparse(sparse_file.fileno(), 64)
+        sparse_file.close()
+        return is_sparse(sparse_file.name)
+    finally:
+        os.remove(sparse_file.name)

sabnzbd/interface.py

@@ -895,6 +895,7 @@ SPECIAL_BOOL_LIST = (
     "allow_old_ssl_tls",
     "enable_season_sorting",
     "verify_xff_header",
+    "direct_write",
 )
 SPECIAL_VALUE_LIST = (
     "downloader_sleep_time",
@@ -913,7 +914,6 @@ SPECIAL_VALUE_LIST = (
     "ssdp_broadcast_interval",
     "unrar_parameters",
     "outgoing_nntp_ip",
-    "pipelining_requests",
 )
 SPECIAL_LIST_LIST = (
     "rss_odd_titles",
@@ -1270,7 +1270,7 @@ class ConfigRss:
                     active_feed,
                     download=self.__refresh_download,
                     force=self.__refresh_force,
-                    ignoreFirst=self.__refresh_ignore,
+                    ignore_first=self.__refresh_ignore,
                     readout=readout,
                 )
             else:

sabnzbd/misc.py

@@ -62,6 +62,7 @@ from sabnzbd.filesystem import userxbit, make_script_path, remove_file, strip_ex
 if sabnzbd.WINDOWS:
     try:
         import winreg
+        import win32api
         import win32process
         import win32con
 
@@ -717,15 +718,7 @@ def get_cache_limit() -> str:
     """
     # Calculate, if possible
     try:
-        if sabnzbd.WINDOWS:
-            # Windows
-            mem_bytes = get_windows_memory()
-        elif sabnzbd.MACOS:
-            # macOS
-            mem_bytes = get_macos_memory()
-        else:
-            # Linux
-            mem_bytes = os.sysconf("SC_PAGE_SIZE") * os.sysconf("SC_PHYS_PAGES")
+        mem_bytes = get_memory()
 
         # Use 1/4th of available memory
         mem_bytes = mem_bytes / 4
@@ -748,36 +741,27 @@ def get_cache_limit() -> str:
     return ""
 
 
-def get_windows_memory() -> int:
-    """Use ctypes to extract available memory"""
-
-    class MEMORYSTATUSEX(ctypes.Structure):
-        _fields_ = [
-            ("dwLength", ctypes.c_ulong),
-            ("dwMemoryLoad", ctypes.c_ulong),
-            ("ullTotalPhys", ctypes.c_ulonglong),
-            ("ullAvailPhys", ctypes.c_ulonglong),
-            ("ullTotalPageFile", ctypes.c_ulonglong),
-            ("ullAvailPageFile", ctypes.c_ulonglong),
-            ("ullTotalVirtual", ctypes.c_ulonglong),
-            ("ullAvailVirtual", ctypes.c_ulonglong),
-            ("sullAvailExtendedVirtual", ctypes.c_ulonglong),
-        ]
-
-        def __init__(self):
-            # have to initialize this to the size of MEMORYSTATUSEX
-            self.dwLength = ctypes.sizeof(self)
-            super(MEMORYSTATUSEX, self).__init__()
-
-    stat = MEMORYSTATUSEX()
-    ctypes.windll.kernel32.GlobalMemoryStatusEx(ctypes.byref(stat))
-    return stat.ullTotalPhys
-
-
-def get_macos_memory() -> float:
-    """Use system-call to extract total memory on macOS"""
-    system_output = run_command(["sysctl", "hw.memsize"])
-    return float(system_output.split()[1])
+def get_memory() -> int:
+    try:
+        if sabnzbd.WINDOWS:
+            # Use win32api to get total physical memory
+            mem_info = win32api.GlobalMemoryStatusEx()
+            return mem_info["TotalPhys"]
+        elif sabnzbd.MACOS:
+            # Use system-call to extract total memory on macOS
+            system_output = run_command(["sysctl", "-n", "hw.memsize"]).strip()
+        else:
+            try:
+                with open("/proc/meminfo") as f:
+                    for line in f:
+                        if line.startswith("MemTotal:"):
+                            return int(line.split()[1]) * 1024
+            except Exception:
+                pass
+            return os.sysconf("SC_PAGE_SIZE") * os.sysconf("SC_PHYS_PAGES")
+    except Exception:
+        pass
+    return 0
 
 
 @conditional_cache(cache_time=3600)

sabnzbd/newsunpack.py

@@ -70,7 +70,6 @@ from sabnzbd.nzb import NzbObject
 import sabnzbd.cfg as cfg
 from sabnzbd.constants import Status
 
-
 # Regex globals
 RAR_V3_RE = re.compile(r"\.(?P<ext>part\d*)$", re.I)
 RAR_EXTRACTFROM_RE = re.compile(r"^Extracting\sfrom\s(.+)")
@@ -118,7 +117,14 @@ def find_programs(curdir: str):
         sabnzbd.newsunpack.SEVENZIP_COMMAND = check(curdir, "macos/7zip/7zz")
 
     if sabnzbd.WINDOWS:
-        sabnzbd.newsunpack.PAR2_COMMAND = check(curdir, "win/par2/par2.exe")
+        if sabnzbd.WINDOWSARM64:
+            # ARM64 version of par2
+            sabnzbd.newsunpack.PAR2_COMMAND = check(curdir, "win/par2/arm64/par2.exe")
+        else:
+            # Regular x64 version
+            sabnzbd.newsunpack.PAR2_COMMAND = check(curdir, "win/par2/par2.exe")
+
+        # UnRAR has no arm64 version, so we skip it also for 7zip
         sabnzbd.newsunpack.RAR_COMMAND = check(curdir, "win/unrar/UnRAR.exe")
         sabnzbd.newsunpack.SEVENZIP_COMMAND = check(curdir, "win/7zip/7za.exe")
     else:

sabnzbd/newswrapper.py

@@ -23,6 +23,7 @@ import errno
 import socket
 import threading
 from collections import deque
+from contextlib import suppress
 from selectors import EVENT_READ, EVENT_WRITE
 from threading import Thread
 import time
@@ -60,9 +61,9 @@ class NewsWrapper:
         "blocking",
         "timeout",
         "decoder",
-        "send_buffer",
         "nntp",
         "connected",
+        "ready",
         "user_sent",
         "pass_sent",
         "group",
@@ -75,6 +76,7 @@ class NewsWrapper:
         "selector_events",
         "lock",
         "generation",
+        "tls_wants_write",
     )
 
     def __init__(self, server: "sabnzbd.downloader.Server", thrdnum: int, block: bool = False, generation: int = 0):
@@ -82,15 +84,17 @@ class NewsWrapper:
         self.thrdnum: int = thrdnum
         self.blocking: bool = block
         self.generation: int = generation
+        if getattr(self, "lock", None) is None:
+            self.lock: threading.Lock = threading.Lock()
 
         self.timeout: Optional[float] = None
 
         self.decoder: Optional[sabctools.Decoder] = None
-        self.send_buffer = b""
 
         self.nntp: Optional[NNTP] = None
 
-        self.connected: bool = False
+        self.connected: bool = False  # TCP/TLS handshake complete
+        self.ready: bool = False  # Auth complete, can serve requests
         self.user_sent: bool = False
         self.pass_sent: bool = False
         self.user_ok: bool = False
@@ -101,11 +105,11 @@ class NewsWrapper:
         # Command queue and concurrency
         self.next_request: Optional[tuple[bytes, Optional["sabnzbd.nzb.Article"]]] = None
         self.concurrent_requests: threading.BoundedSemaphore = threading.BoundedSemaphore(
-            sabnzbd.cfg.pipelining_requests()
+            self.server.pipelining_requests()
         )
         self._response_queue: deque[Optional[sabnzbd.nzb.Article]] = deque()
         self.selector_events = 0
-        self.lock: threading.Lock = threading.Lock()
+        self.tls_wants_write: bool = False
 
     @property
     def article(self) -> Optional["sabnzbd.nzb.Article"]:
@@ -133,7 +137,7 @@ class NewsWrapper:
     def finish_connect(self, code: int, message: str) -> None:
         """Perform login options"""
         if not (self.server.username or self.server.password or self.force_login):
-            self.connected = True
+            self.ready = True
             self.user_sent = True
             self.user_ok = True
             self.pass_sent = True
@@ -141,7 +145,7 @@ class NewsWrapper:
 
         if code == 480:
             self.force_login = True
-            self.connected = False
+            self.ready = False
             self.user_sent = False
             self.user_ok = False
             self.pass_sent = False
@@ -161,7 +165,7 @@ class NewsWrapper:
                 self.user_ok = True
                 self.pass_sent = True
                 self.pass_ok = True
-                self.connected = True
+                self.ready = True
 
         if self.user_ok and not self.pass_sent:
             command = utob("authinfo pass %s\r\n" % self.server.password)
@@ -172,7 +176,7 @@ class NewsWrapper:
                 # Assume that login failed (code 481 or other)
                 raise NNTPPermanentError(message, code)
             else:
-                self.connected = True
+                self.ready = True
 
         self.timeout = time.time() + self.server.timeout
 
@@ -201,7 +205,6 @@ class NewsWrapper:
     def on_response(self, response: sabctools.NNTPResponse, article: Optional["sabnzbd.nzb.Article"]) -> None:
         """A response to a NNTP request is received"""
         self.concurrent_requests.release()
-        sabnzbd.Downloader.modify_socket(self, EVENT_READ | EVENT_WRITE)
         server = self.server
         article_done = response.status_code in (220, 222) and article
 
@@ -214,11 +217,11 @@ class NewsWrapper:
         # Response code depends on request command:
         # 220 = ARTICLE, 222 = BODY
         if not article_done:
-            if not self.connected or not article or response.status_code in (281, 381, 480, 481, 482):
+            if not self.ready or not article or response.status_code in (281, 381, 480, 481, 482):
                 self.discard(article, count_article_try=False)
                 if not sabnzbd.Downloader.finish_connect_nw(self, response):
                     return
-                if self.connected:
+                if self.ready:
                     logging.info("Connecting %s@%s finished", self.thrdnum, server.host)
 
             elif response.status_code == 223:
@@ -237,15 +240,9 @@ class NewsWrapper:
 
             elif response.status_code == 500:
                 if article.nzf.nzo.precheck:
-                    # Did we try "STAT" already?
-                    if not server.have_stat:
-                        # Hopless server, just discard
-                        logging.info("Server %s does not support STAT or HEAD, precheck not possible", server.host)
-                        article_done = True
-                    else:
-                        # Assume "STAT" command is not supported
-                        server.have_stat = False
-                        logging.debug("Server %s does not support STAT, trying HEAD", server.host)
+                    # Assume "STAT" command is not supported
+                    server.have_stat = False
+                    logging.debug("Server %s does not support STAT", server.host)
                 else:
                     # Assume "BODY" command is not supported
                     server.have_body = False
@@ -296,7 +293,7 @@ class NewsWrapper:
             generation = self.generation
 
         # NewsWrapper is being reset
-        if not self.decoder:
+        if self.decoder is None:
             return 0, None
 
         # Receive data into the decoder pre-allocated buffer
@@ -314,17 +311,31 @@ class NewsWrapper:
         self.timeout = time.time() + self.server.timeout
 
         self.decoder.process(bytes_recv)
-        for response in self.decoder:
-            if self.generation != generation:
-                break
-            with self.lock:
-                # Re-check under lock to avoid racing with hard_reset
-                if self.generation != generation or not self._response_queue:
-                    break
-                article = self._response_queue.popleft()
-            if on_response:
-                on_response(response.status_code, response.message)
-            self.on_response(response, article)
+        if self.decoder:
+            for response in self.decoder:
+                with self.lock:
+                    # Check generation under lock to avoid racing with hard_reset
+                    if self.generation != generation or not self._response_queue:
+                        break
+                    article = self._response_queue.popleft()
+                if on_response:
+                    on_response(response.status_code, response.message)
+                self.on_response(response, article)
+
+            # After each response this socket may need to be made available to write the next request,
+            # or removed from socket monitoring to prevent hot looping.
+            if self.prepare_request():
+                # There is either a next_request or an inflight request
+                # If there is a next_request to send, ensure the socket is registered for write events
+                # Checks before calling modify_socket to prevent locks on the hot path
+                if self.next_request and self.selector_events != EVENT_READ | EVENT_WRITE:
+                    sabnzbd.Downloader.modify_socket(self, EVENT_READ | EVENT_WRITE)
+            else:
+                # Only remove the socket if it's not SSL or has no pending data, otherwise the recursive call may
+                # call prepare_request again and find a request, but the socket would have already been removed.
+                if not self.server.ssl or not self.nntp or not self.nntp.sock.pending():
+                    # No further work for this socket
+                    sabnzbd.Downloader.remove_socket(self)
 
         # The SSL-layer might still contain data even though the socket does not. Another Downloader-loop would
         # not identify this socket anymore as it is not returned by select(). So, we have to forcefully trigger
@@ -333,86 +344,101 @@ class NewsWrapper:
             return bytes_recv, pending
         return bytes_recv, None
 
+    def prepare_request(self) -> bool:
+        """Queue an article request if appropriate."""
+        server = self.server
+
+        # Do not pipeline requests until authentication is completed (connected)
+        if self.ready or not self._response_queue:
+            server_ready = (
+                server.active
+                and not server.restart
+                and not (
+                    sabnzbd.Downloader.no_active_jobs()
+                    or sabnzbd.Downloader.shutdown
+                    or sabnzbd.Downloader.paused_for_postproc
+                )
+            )
+
+            if server_ready:
+                # Queue the next article if none exists
+                if not self.next_request and (article := server.get_article()):
+                    self.next_request = self.body(article)
+                    return True
+            else:
+                # Server not ready, discard any queued next_request
+                if self.next_request and self.next_request[1]:
+                    self.discard(self.next_request[1], count_article_try=False, retry_article=True)
+                    self.next_request = None
+
+        # Return True if there is work queued or in flight
+        return bool(self.next_request or self._response_queue)
+
     def write(self):
         """Send data to server"""
         server = self.server
 
         try:
-            # First, try to flush any remaining data
-            if self.send_buffer:
-                sent = self.nntp.sock.send(self.send_buffer)
-                self.send_buffer = self.send_buffer[sent:]
-                if self.send_buffer:
-                    # Still unsent data, wait for next EVENT_WRITE
+            # Flush any buffered data
+            if self.nntp.write_buffer:
+                sent = self.nntp.sock.send(self.nntp.write_buffer)
+                self.nntp.write_buffer = self.nntp.write_buffer[sent:]
+                # If buffer still has data, wait for next write opportunity
+                if self.nntp.write_buffer:
                     return
 
-            if self.connected:
-                if (
-                    server.active
-                    and not server.restart
-                    and not (
-                        sabnzbd.Downloader.paused
-                        or sabnzbd.Downloader.shutdown
-                        or sabnzbd.Downloader.paused_for_postproc
-                    )
-                ):
-                    # Prepare the next request
-                    if not self.next_request and (article := server.get_article()):
-                        self.next_request = self.body(article)
-                elif self.next_request and self.next_request[1]:
-                    # Discard the next request
-                    self.discard(self.next_request[1], count_article_try=False, retry_article=True)
-                    self.next_request = None
+            # If available, try to send new command
+            if self.prepare_request():
+                # Nothing to send but already requests in-flight
+                if not self.next_request:
+                    sabnzbd.Downloader.modify_socket(self, EVENT_READ)
+                    return
 
-            # If no pending buffer, try to send new command
-            if not self.send_buffer and self.next_request:
                 if self.concurrent_requests.acquire(blocking=False):
                     command, article = self.next_request
-                    self.next_request = None
                     if article:
                         nzo = article.nzf.nzo
                         if nzo.removed_from_queue or nzo.status is Status.PAUSED and nzo.priority is not FORCE_PRIORITY:
                             self.discard(article, count_article_try=False, retry_article=True)
                             self.concurrent_requests.release()
+                            self.next_request = None
                             return
-                    self._response_queue.append(article)
+
                     if sabnzbd.LOG_ALL:
                         logging.debug("Thread %s@%s: %s", self.thrdnum, server.host, command)
-                    try:
-                        sent = self.nntp.sock.send(command)
-                        if sent < len(command):
-                            # Partial send, store remainder
-                            self.send_buffer = command[sent:]
-                    except (BlockingIOError, ssl.SSLWantWriteError):
-                        # Can't send now, store full command
-                        self.send_buffer = command
+
+                    # Non-blocking send - buffer any unsent data
+                    sent = self.nntp.sock.send(command)
+                    if sent < len(command):
+                        logging.debug("%s@%s: Partial send", self.thrdnum, server.host)
+                        self.nntp.write_buffer = command[sent:]
+
+                    self._response_queue.append(article)
+                    self.next_request = None
                 else:
-                    # Concurrency limit reached
+                    # Concurrency limit reached; wait until a response is read to prevent hot looping on EVENT_WRITE
                     sabnzbd.Downloader.modify_socket(self, EVENT_READ)
             else:
-                # Is it safe to shut down this socket?
-                if (
-                    not self.send_buffer
-                    and not self.next_request
-                    and not self._response_queue
-                    and (not server.active or server.restart or not self.timeout or time.time() > self.timeout)
-                ):
-                    # Make socket available again
-                    server.busy_threads.discard(self)
-                    server.idle_threads.add(self)
-                    sabnzbd.Downloader.remove_socket(self)
-
-        except (BlockingIOError, ssl.SSLWantWriteError):
-            # Socket not currently writable — just try again later
-            return
+                # No further work for this socket
+                sabnzbd.Downloader.remove_socket(self)
+        except ssl.SSLWantWriteError:
+            # Socket not ready for writing, keep buffer and wait for next write event
+            pass
+        except ssl.SSLWantReadError:
+            # SSL renegotiation needs read first
+            sabnzbd.Downloader.modify_socket(self, EVENT_READ)
+        except BlockingIOError:
+            # Socket not ready for writing, keep buffer and wait for next write event
+            pass
         except socket.error as err:
-            logging.info("Looks like server closed connection: %s", err)
-            sabnzbd.Downloader.reset_nw(self, "Server broke off connection", warn=True)
+            logging.info("Looks like server closed connection: %s, type: %s", err, type(err))
+            sabnzbd.Downloader.reset_nw(self, "Server broke off connection", warn=True, wait=False)
         except Exception:
             logging.error(T("Suspect error in downloader"))
             logging.info("Traceback: ", exc_info=True)
             sabnzbd.Downloader.reset_nw(self, "Server broke off connection", warn=True)
 
+    @synchronized(DOWNLOADER_LOCK)
     def hard_reset(self, wait: bool = True):
         """Destroy and restart"""
         with self.lock:
@@ -427,11 +453,11 @@ class NewsWrapper:
                 if article := self._response_queue.popleft():
                     self.discard(article, count_article_try=False, retry_article=True)
 
-        if self.nntp:
-            self.nntp.close(send_quit=self.connected)
-            self.nntp = None
+            if self.nntp:
+                sabnzbd.Downloader.remove_socket(self)
+                self.nntp.close(send_quit=self.ready)
+                self.nntp = None
 
-        with self.lock:
             # Reset all variables (including the NNTP connection) and increment the generation counter
             self.__init__(self.server, self.thrdnum, generation=self.generation + 1)
 
@@ -470,13 +496,13 @@ class NewsWrapper:
             self.server.host,
             self.server.port,
             self.thrdnum,
-            self.connected,
+            self.ready,
         )
 
 
 class NNTP:
     # Pre-define attributes to save memory
-    __slots__ = ("nw", "addrinfo", "error_msg", "sock", "fileno", "closed")
+    __slots__ = ("nw", "addrinfo", "error_msg", "sock", "fileno", "closed", "write_buffer")
 
     def __init__(self, nw: NewsWrapper, addrinfo: AddrInfo):
         self.nw: NewsWrapper = nw
@@ -487,6 +513,9 @@ class NNTP:
         # Prevent closing this socket until it's done connecting
         self.closed = False
 
+        # Buffer for non-blocking writes
+        self.write_buffer: bytes = b""
+
         # Create SSL-context if it is needed and not created yet
         if self.nw.server.ssl and not self.nw.server.ssl_context:
             # Setup the SSL socket
@@ -586,6 +615,7 @@ class NNTP:
                 # Locked, so it can't interleave with any of the Downloader "__nw" actions
                 with DOWNLOADER_LOCK:
                     if not self.closed:
+                        self.nw.connected = True
                         sabnzbd.Downloader.add_socket(self.nw)
         except OSError as e:
             self.error(e)
@@ -643,6 +673,8 @@ class NNTP:
             else:
                 logging.warning(msg)
             self.nw.server.warning = msg
+            # No reset-warning needed, above logging is sufficient
+            sabnzbd.Downloader.reset_nw(self.nw)
 
     @synchronized(DOWNLOADER_LOCK)
     def close(self, send_quit: bool):
@@ -650,10 +682,12 @@ class NNTP:
         Locked to match connect(), even though most likely the caller already holds the same lock."""
         # Set status first, so any calls in connect/error are handled correctly
         self.closed = True
+        self.write_buffer = b""
         try:
             if send_quit:
-                self.sock.sendall(b"QUIT\r\n")
-                time.sleep(0.01)
+                with suppress(socket.error):
+                    self.sock.sendall(b"QUIT\r\n")
+                    time.sleep(0.01)
             self.sock.close()
         except Exception as e:
             logging.info("%s@%s: Failed to close socket (error=%s)", self.nw.thrdnum, self.nw.server.host, str(e))

sabnzbd/notifier.py

@@ -20,7 +20,6 @@
 sabnzbd.notifier - Send notifications to any notification services
 """
 
-
 import sys
 import os.path
 import logging

sabnzbd/nzb/__init__.py

@@ -20,7 +20,7 @@ sabnzbd.nzb - NZB-related classes and functionality
 """
 
 # Article-related classes
-from sabnzbd.nzb.article import Article, ArticleSaver, TryList, TRYLIST_LOCK
+from sabnzbd.nzb.article import Article, ArticleSaver, TryList
 
 # File-related classes
 from sabnzbd.nzb.file import NzbFile, NzbFileSaver, SkippedNzbFile
@@ -30,7 +30,6 @@ from sabnzbd.nzb.object import (
     NzbObject,
     NzbObjectSaver,
     NzoAttributeSaver,
-    NZO_LOCK,
     NzbEmpty,
     NzbRejected,
     NzbPreQueueRejected,
@@ -42,7 +41,6 @@ __all__ = [
     "Article",
     "ArticleSaver",
     "TryList",
-    "TRYLIST_LOCK",
     # File
     "NzbFile",
     "NzbFileSaver",
@@ -51,7 +49,6 @@ __all__ = [
     "NzbObject",
     "NzbObjectSaver",
     "NzoAttributeSaver",
-    "NZO_LOCK",
     "NzbEmpty",
     "NzbRejected",
     "NzbPreQueueRejected",

sabnzbd/nzb/article.py

@@ -18,6 +18,7 @@
 """
 sabnzbd.article - Article and TryList classes for NZB downloading
 """
+
 import logging
 import threading
 from typing import Optional
@@ -27,13 +28,10 @@ from sabnzbd.downloader import Server
 from sabnzbd.filesystem import get_new_id
 from sabnzbd.decorators import synchronized
 
-
 ##############################################################################
 # Trylist
 ##############################################################################
 
-TRYLIST_LOCK = threading.RLock()
-
 
 class TryList:
     """TryList keeps track of which servers have been tried for a specific article"""
@@ -45,32 +43,32 @@ class TryList:
         # Sets are faster than lists
         self.try_list: set[Server] = set()
 
+    @synchronized()
     def server_in_try_list(self, server: Server) -> bool:
         """Return whether specified server has been tried"""
-        with TRYLIST_LOCK:
-            return server in self.try_list
+        return server in self.try_list
 
+    @synchronized()
     def all_servers_in_try_list(self, all_servers: set[Server]) -> bool:
         """Check if all servers have been tried"""
-        with TRYLIST_LOCK:
-            return all_servers.issubset(self.try_list)
+        return all_servers.issubset(self.try_list)
 
+    @synchronized()
     def add_to_try_list(self, server: Server):
         """Register server as having been tried already"""
-        with TRYLIST_LOCK:
-            # Sets cannot contain duplicate items
-            self.try_list.add(server)
+        # Sets cannot contain duplicate items
+        self.try_list.add(server)
 
+    @synchronized()
     def remove_from_try_list(self, server: Server):
         """Remove server from list of tried servers"""
-        with TRYLIST_LOCK:
-            # Discard does not require the item to be present
-            self.try_list.discard(server)
+        # Discard does not require the item to be present
+        self.try_list.discard(server)
 
+    @synchronized()
     def reset_try_list(self):
         """Clean the list"""
-        with TRYLIST_LOCK:
-            self.try_list = set()
+        self.try_list = set()
 
     def __getstate__(self):
         """Save the servers"""
@@ -98,6 +96,7 @@ ArticleSaver = (
     "on_disk",
     "nzf",
     "crc32",
+    "decoded_size",
 )
 
 
@@ -105,7 +104,7 @@ class Article(TryList):
     """Representation of one article"""
 
     # Pre-define attributes to save memory
-    __slots__ = ArticleSaver + ("fetcher", "fetcher_priority", "tries")
+    __slots__ = ArticleSaver + ("fetcher", "fetcher_priority", "tries", "lock")
 
     def __init__(self, article, article_bytes, nzf):
         super().__init__()
@@ -120,11 +119,14 @@ class Article(TryList):
         self.file_size: Optional[int] = None
         self.data_begin: Optional[int] = None
         self.data_size: Optional[int] = None
+        self.decoded_size: Optional[int] = None  # Size of the decoded article
         self.on_disk: bool = False
         self.crc32: Optional[int] = None
-        self.nzf = nzf  # NzbFile reference
+        self.nzf: "sabnzbd.nzb.NzbFile" = nzf  # NzbFile reference
+        # Share NzbFile lock for file-wide atomicity of try-list ops
+        self.lock: threading.RLock = nzf.lock
 
-    @synchronized(TRYLIST_LOCK)
+    @synchronized()
     def reset_try_list(self):
         """In addition to resetting the try list, also reset fetcher so all servers
         are tried again. Locked so fetcher setting changes are also protected."""
@@ -132,16 +134,17 @@ class Article(TryList):
         self.fetcher_priority = 0
         super().reset_try_list()
 
-    @synchronized(TRYLIST_LOCK)
     def allow_new_fetcher(self, remove_fetcher_from_try_list: bool = True):
         """Let article get new fetcher and reset try lists of file and job.
-        Locked so all resets are performed at once"""
-        if remove_fetcher_from_try_list:
-            self.remove_from_try_list(self.fetcher)
-        self.fetcher = None
-        self.tries = 0
-        self.nzf.reset_try_list()
-        self.nzf.nzo.reset_try_list()
+        Locked so all resets are performed at once.
+        Must acquire nzo lock first, then nzf lock (which is self.lock) to prevent deadlock."""
+        with self.nzf.nzo.lock, self.lock:
+            if remove_fetcher_from_try_list:
+                self.remove_from_try_list(self.fetcher)
+            self.fetcher = None
+            self.tries = 0
+            self.nzf.reset_try_list()
+            self.nzf.nzo.reset_try_list()
 
     def get_article(self, server: Server, servers: list[Server]):
         """Return article when appropriate for specified server"""
@@ -189,6 +192,14 @@ class Article(TryList):
         logging.info("Article %s unavailable on all servers, discarding", self.article)
         return False
 
+    @property
+    def can_direct_write(self) -> bool:
+        return bool(
+            self.data_size  # decoder sets data_size to 0 when offsets or file_size are outside allowed range
+            and self.nzf.type == "yenc"
+            and self.nzf.prepare_filepath()
+        )
+
     def __getstate__(self):
         """Save to pickle file, selecting attributes"""
         dict_ = {}
@@ -205,6 +216,7 @@ class Article(TryList):
             except KeyError:
                 # Handle new attributes
                 setattr(self, item, None)
+        self.lock = threading.RLock()
         super().__setstate__(dict_.get("try_list", []))
         self.fetcher = None
         self.fetcher_priority = 0