From c910e0139f983d0e04e2d1d235cd71803afeae34 Mon Sep 17 00:00:00 2001
From: "github-actions[bot]" <github-actions[bot]@users.noreply.github.com>
Date: Sat, 23 May 2026 18:40:42 +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 05c90b1bf9..3d2b4063f2 100644
--- a/docs/en/docs/release-notes.md
+++ b/docs/en/docs/release-notes.md
@@ -7,6 +7,10 @@ hide:
 
 ## Latest Changes
 
+### Refactors
+
+* ♻️ Do not accept underscore headers when using `convert_underscores=True` (the default). PR [#15589](https://github.com/fastapi/fastapi/pull/15589) by [@tiangolo](https://github.com/tiangolo).
+
 ## 0.136.2 (2026-05-23)
 
 ### Refactors