Release note for read-only FieldPanels (#9129)

CHANGELOG.txt

@@ -4,6 +4,7 @@ Changelog
 5.1 (xx.xx.xxxx) - IN DEVELOPMENT
 ~~~~~~~~~~~~~~~~
 
+ * Add support for read-only FieldPanels (Andy Babic)
  * Mark calls to `md5` as not being used for secure purposes, to avoid flagging on FIPS-mode systems (Sean Kelly)
  * 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)
  * Docs: Document how to add non-ModelAdmin views to a `ModelAdminGroup` (Onno Timmerman)

docs/releases/5.1.md

@@ -11,7 +11,9 @@ depth: 1
 
 ## What's new
 
-### ...
+### Read-only panels
+
+FieldPanels can now be marked as read-only with the `read_only=True` keyword argument, so that they are displayed in the admin but cannot be edited. This feature was developed by Andy Babic.
 
 ### Other features