diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 2f803c26a4..6b590ffdbe 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -23,6 +23,7 @@ Changelog
  * Add support for `--template` option to `wagtail start` (Thibaud Colas)
  * Change to always cache renditions (Jake Howard)
  * Update link/document rich text tooltips for consistency with the inline toolbar (Albina Starykova)
+ * Purge revisions of non-page models in `purge_revisions` command (Sage Abdullah)
  * Fix: Prevent choosers from failing when initial value is an unrecognised ID, e.g. when moving a page from a location where `parent_page_types` would disallow it (Dan Braghis)
  * Fix: Move comment notifications toggle to the comments side panel (Sage Abdullah)
  * Fix: Remove comment button on InlinePanel fields (Sage Abdullah)
diff --git a/docs/releases/5.1.md b/docs/releases/5.1.md
index a99c652b97..e039444c1e 100644
--- a/docs/releases/5.1.md
+++ b/docs/releases/5.1.md
@@ -62,6 +62,7 @@ As part of tackling Wagtail’s technical debt and improving [CSP compatibility]
  * Add support for adding [HTML `attrs`](panels_attrs) on `FieldPanel`, `FieldRowPanel`, `MultiFieldPanel`, and others (Aman Pandey, Antoni Martyniuk, LB (Ben) Johnston)
  * Change to always cache renditions (Jake Howard)
  * Update link/document rich text tooltips for consistency with the inline toolbar (Albina Starykova)
+ * Purge revisions of non-page models in `purge_revisions` command (Sage Abdullah)
 
 ### Bug fixes
 
@@ -315,7 +316,7 @@ Note: The `data-w-tag-options-value` is a JSON object serialised into string. Dj
 ### Image Renditions are now cached by default
 
 Wagtail will try to use the cache called "renditions". If no such cache exists, it will fall back to using the default cache.
-You can [configure the "renditions" cache](custom_image_renditions_cache) to use a different cache backend or to provide 
+You can [configure the "renditions" cache](custom_image_renditions_cache) to use a different cache backend or to provide
 additional configuration parameters.
 
 ### Tooltips now rely on new data attributes