Merge in all the changes, make sure master is happy and the current working directory clean.
Bump the version in cron-sentry/version.py following semver. Let's call it $NEW_VERSION.
Run git changelog from the git-extras package to update the changelog.
Format accordingly and set the $NEW_VERSION.
Then make a commit called "Release v$NEW_VERSION"
And git tag v$NEW_VERSION
Run git push && git push --tags
run make release