Fill in release date for 6.1 final

CHANGELOG.txt

@@ -13,7 +13,7 @@ Changelog
  * Maintenance: Use `DjangoJSONEncoder` instead of custom `LazyStringEncoder` to serialize Draftail config (Sage Abdullah)
 
 
-6.1 (xx.xx.xxxx) - IN DEVELOPMENT
+6.1 (01.05.2024)
 ~~~~~~~~~~~~~~~~
 
  * Refine wording of page & collection privacy using password is a shared password and should not be used for secure content (Rohit Sharma, Jake Howard)

docs/releases/6.1.md

@@ -1,6 +1,6 @@
-# Wagtail 6.1 release notes - IN DEVELOPMENT
+# Wagtail 6.1 release notes
 
-_Unreleased_
+_May 1, 2024_
 
 ```{contents}
 ---