diff --git a/ui/v2.5/src/docs/en/Changelog/v0310.md b/ui/v2.5/src/docs/en/Changelog/v0310.md
index 5db15a51a..ffe6d2cfb 100644
--- a/ui/v2.5/src/docs/en/Changelog/v0310.md
+++ b/ui/v2.5/src/docs/en/Changelog/v0310.md
@@ -48,6 +48,7 @@
 * Added support for sorting scenes and images by resolution. ([#6441](https://github.com/stashapp/stash/pull/6441))
 * Added support for sorting performers and studios by latest scene. ([#6501](https://github.com/stashapp/stash/pull/6501))
 * Added support for sorting performers, studios and tags by total scene file size. ([#6642](https://github.com/stashapp/stash/pull/6642))
+* Added support for sorting galleries by performer age (`performer_age`), with clear multi-performer semantics (ASC uses youngest performer, DESC uses oldest performer) and deterministic handling for missing birthdates. This was validated with sqlite query tests, including dedicated cases for null birthdates and mixed/multi-performer gallery fixtures.
 * Added support for filtering by stash ID count. ([#6437](https://github.com/stashapp/stash/pull/6437))
 * Added support for filtering group by scene count. ([#6593](https://github.com/stashapp/stash/pull/6593))
 * Updated Tag list view to be consistent with other list views. ([#6703](https://github.com/stashapp/stash/pull/6703))