We don't publish binaries, that is up to the distributions.
Whether to update the minor or patch level is decided case-by-case.
To release a new version of Notion:
git tag -a 4.x.y -s -m "Notion 4.x.y"
git push --tags
- edit the release notes prepared by release-drafter at https://github.com/raboof/notion/releases and publish them under the just-created tag