From: Ben Darnell <ben@bendarnell.com>
Date: Mon, 15 Dec 2025 18:36:01 +0000 (-0500)
Subject: Release notes and version bump for 6.5.4
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=dc6d2e7a19849f26ea10e62ac0ab733abbcb8cda;p=thirdparty%2Ftornado.git

Release notes and version bump for 6.5.4
---

diff --git a/docs/releases.rst b/docs/releases.rst
index 3d69d7af..23502c2f 100644
--- a/docs/releases.rst
+++ b/docs/releases.rst
@@ -4,6 +4,7 @@ Release notes
 .. toctree::
    :maxdepth: 2
 
+   releases/v6.5.4
    releases/v6.5.3
    releases/v6.5.2
    releases/v6.5.1
diff --git a/docs/releases/v6.5.4.rst b/docs/releases/v6.5.4.rst
new file mode 100644
index 00000000..7f3819f0
--- /dev/null
+++ b/docs/releases/v6.5.4.rst
@@ -0,0 +1,13 @@
+What's new in Tornado 6.5.4
+===========================
+
+Dec 15, 2025
+------------
+
+Bug fixes
+~~~~~~~~~
+
+- The ``in`` operator for ``HTTPHeaders`` was incorrectly case-sensitive, causing
+  lookups to fail for headers with different casing than the original header name.
+  This was a regression in version 6.5.3 and has been fixed to restore the intended
+  case-insensitive behavior from version 6.5.2 and earlier.