diff --git a/BUILD_INSTRUCTIONS.md b/BUILD_INSTRUCTIONS.md
index c06296d8..01a73338 100644
--- a/BUILD_INSTRUCTIONS.md
+++ b/BUILD_INSTRUCTIONS.md
@@ -71,7 +71,7 @@ After building, extract assets from your WoW client:
 ./extract_assets.sh /path/to/WoW/Data wotlk
 ```
 
-Supports `classic`, `tbc`, `wotlk` targets (auto-detected if omitted).
+Supports `classic`, `turtle`, `tbc`, `wotlk` targets (auto-detected if omitted).
 
 ---
 
@@ -116,7 +116,7 @@ It automatically detects Homebrew and passes the correct paths to CMake.
 ./extract_assets.sh /path/to/WoW/Data wotlk
 ```
 
-Supports `classic`, `tbc`, `wotlk` targets (auto-detected if omitted).
+Supports `classic`, `turtle`, `tbc`, `wotlk` targets (auto-detected if omitted).
 
 ---
 
diff --git a/assets/textures/README.md b/assets/textures/README.md
index aea06c61..020d5e92 100644
--- a/assets/textures/README.md
+++ b/assets/textures/README.md
@@ -3,7 +3,7 @@
 **Source**: TurtleHD Texture Pack (Turtle WoW)
 **Imported**: 2026-01-27
 **Total Files**: 298 BLP textures
-**Total Size**: 10MB
+**Total Size**: 11MB
 
 ## Directory Structure
 
diff --git a/extern/VERSIONS.md b/extern/VERSIONS.md
index 1d7d2d4b..6a7a8740 100644
--- a/extern/VERSIONS.md
+++ b/extern/VERSIONS.md
@@ -6,9 +6,13 @@ when upgrading any dependency so maintainers can track drift.
 | Library | Version | Source | Notes |
 |---------|---------|--------|-------|
 | Dear ImGui | 1.92.6 WIP | https://github.com/ocornut/imgui | Git submodule |
-| vk-bootstrap | latest | https://github.com/charles-lunarg/vk-bootstrap | Git submodule |
+| vk-bootstrap | v1.3.302 | https://github.com/charles-lunarg/vk-bootstrap | Git submodule |
+| FidelityFX-FSR2 | v2.2.1-1-g3d22aef | https://github.com/GPUOpen-Effects/FidelityFX-FSR2 | Git submodule |
+| FidelityFX-SDK | tracks `main` (ce81c67…) | https://github.com/Kelsidavis/FidelityFX-SDK | Git submodule (fork pinned by build scripts) |
 | Vulkan Memory Allocator | 3.4.0 | https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator | Single header |
 | miniaudio | 0.11.24 | https://miniaud.io/ | Single header |
+| nlohmann/json | 3.11.3 | https://github.com/nlohmann/json | Single header (`extern/nlohmann/json.hpp`) |
 | stb_image | 2.30 | https://github.com/nothings/stb | Single header |
 | stb_image_write | 1.16 | https://github.com/nothings/stb | Single header |
+| Catch2 | amalgamated (Catch2 v3.x) | https://github.com/catchorg/Catch2 | Vendored `catch_amalgamated.{cpp,hpp}` — test build only |
 | Lua | 5.1.5 | https://www.lua.org/ | Intentionally 5.1 for WoW addon API compatibility |