From ba609a8946e9054c050ca4cf7afa2a222694bfc9 Mon Sep 17 00:00:00 2001
From: "github-actions[bot]" <github-actions[bot]@users.noreply.github.com>
Date: Sun, 14 Jun 2026 12:36:16 +0000
Subject: [PATCH] =?UTF-8?q?=F0=9F=93=9D=20Update=20release=20notes?=
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[skip ci]
---
 docs/en/docs/release-notes.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/docs/en/docs/release-notes.md b/docs/en/docs/release-notes.md
index 101804507..60c2b61c6 100644
--- a/docs/en/docs/release-notes.md
+++ b/docs/en/docs/release-notes.md
@@ -56,6 +56,10 @@ Still, for now, consider this very experimental and potentially changing and bre
 * Middleware per router
 * Other features planned
 
+### Breaking Changes
+
+* ♻️ Refactor internals to preserve `APIRouter` and `APIRoute` instances. PR [#15745](https://github.com/fastapi/fastapi/pull/15745) by [@tiangolo](https://github.com/tiangolo).
+
 ### Docs
 
 * 📝 Update FastAPI Cloud deployment instructions. PR [#15724](https://github.com/fastapi/fastapi/pull/15724) by [@alejsdev](https://github.com/alejsdev).