docs: more release docs

docs/abra/hack.md

@@ -359,10 +359,35 @@ For developers, while using this `-beta` format, the `y` part is the "major" ver
 - Push the new tag (e.g. `git push && git push --tags`)
 - Wait until the build finishes on [build.coopcloud.tech](https://build.coopcloud.tech/toolshed/abra)
 - Deploy the new installer script (e.g. `cd ./scripts/installer && make`)
-- Clean up the changelog on the releases page so it includes most relevant changes
+- Clean up the changelog on the releases page so it includes most relevant
+  changes. See below for the announcement text that needs to be inserted above
+  the generated changelog. You can use something like `git shortlog -e -s -n
+  0.11.0-beta..HEAD` to get the list of authors.
 - Make sure there is a migration guide written in the docs (if necessary)
 - Check the release worked, (e.g. `abra upgrade; abra -v`)
-- Share the announcement:
+- Share the announcement on our General chat and fedi account:
+
+#### Release notes text
+
+```
+## Changelog   
+
+> 🎺🎺🎺 [`0.XX.x-beta` 👉 `0.XX.0-beta` **migration guide**](XXX) 🎺🎺🎺
+
+`abra` update `HOWTO` documentation is [here](https://docs.coopcloud.tech/abra/upgrade/).
+
+The project with all changes and discussions is [here](XXX).
+
+A huge thanks to all our `abra` hackers for this release 💖
+
+```
+...
+```
+
+$CHANGELOG
+```
+
+#### General announcement text
 
 ```
 📢📢📢 abra v0.XX  is finally here 📢📢📢