Fix missing changelog after update

docs/release-notes/12-0-5/README.md

@@ -16,3 +16,25 @@ The release contains several bug fixes and we recommend updating to the newest v
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 #### Bug fixes and changes
 
+- Fixed: Uploaded IFC Model can't be set as Standard Model \[[#40187](https://community.openproject.com/wp/40187)\]
+- Fixed: Git "View Differences" results in 500 error in Repository module. \[[#40191](https://community.openproject.com/wp/40191)\]
+- Fixed: Impossible to identify errors when bulk moving / updating project \[[#40265](https://community.openproject.com/wp/40265)\]
+- Fixed: wrong position of "slice edit" - context menu \[[#40282](https://community.openproject.com/wp/40282)\]
+- Fixed: Incorrect label causes screenreader problems \[[#40296](https://community.openproject.com/wp/40296)\]
+- Fixed: Member updated mails cannot be surpressed \[[#40316](https://community.openproject.com/wp/40316)\]
+- Fixed: Try to open OpenProject  API: Failed to load API definition. \[[#40352](https://community.openproject.com/wp/40352)\]
+- Fixed: Remote attachments cache isn't cleared \[[#40356](https://community.openproject.com/wp/40356)\]
+- Fixed: Form configuration query can not be edited if invalid \[[#40374](https://community.openproject.com/wp/40374)\]
+- Fixed: Seeding with relative URL root creates invalid welcome text \[[#40376](https://community.openproject.com/wp/40376)\]
+- Fixed: Users created from synchronized group have no notification settings \[[#40433](https://community.openproject.com/wp/40433)\]
+- Fixed: Unpaginated api/v3/relations end point \[[#40434](https://community.openproject.com/wp/40434)\]
+- Fixed: Header-based SSO does not allow entering missing attributes \[[#40511](https://community.openproject.com/wp/40511)\]
+
+#### Contributions
+A big thanks to community members for reporting bugs and helping us identifying and providing fixes.
+
+Special thanks for reporting and finding bugs go to
+
+Valentin Ege, Rene Diekstra, Jonas Plum, Frank Schmid
+
+