chore: Release 2.21.0

Author: provinzkraut

docs/release-notes/changelog.rst

@@ -3,6 +3,30 @@
 Litestar 2 Changelog
 ====================
 
+.. changelog:: 2.21.0
+    :date: 2026-02-14
+
+    .. change:: DI: Fix handling of bound methods returning (async) generators
+        :type: bugfix
+        :issue: 4596
+        :pr: 4597
+
+        Fix a regression introced in github.com/litestar-org/litestar/pull/4459, that
+        would lead to lead to async generators returned from bound methods of DI
+        providers being recognised as a synchronous callable, instead of an async
+        generator.
+
+    .. change:: Add ``after_exception`` option for ``OpenTelemetryConfig``
+        :type: feature
+        :pr: 4595
+        :issue: 4594
+
+        Add an ``after_exception`` option to
+        :class:`~litestar.contrib.opentelemetry.OpenTelemetryConfig`, which will
+        add that hook to the applications ``after_exception`` hooks, allowing the
+        middleware to react to exception, without handling them.
+
+
 .. changelog:: 2.20.0
     :date: 2026-02-08
 
@@ -6539,4 +6563,4 @@ Litestar 2 Changelog
         :issue: 1149
 
         A middleware's ``exclude`` parameter would sometimes not be honoured if the path was used to serve static files
-        using ``StaticFilesConfig``
+        using ``StaticFilesConfig``

pyproject.toml

@@ -64,7 +64,7 @@ maintainers = [
 name = "litestar"
 readme = "docs/PYPI_README.md"
 requires-python = ">=3.8,<4.0"
-version = "2.20.0"
+version = "2.21.0"
 
 [project.urls]
 Blog = "https://blog.litestar.dev"