A git tag is basically a label to a commit. It’s often used to mark releases. For example, v23.3.2+prerelease.
git tag -a v23.3.2+prerelease -m "v23.3.2 (Pre-release)" # add tag on current commit
git push v23.3.2+prerelease # publish the tag
git show v23.3.2+prerelease # view tag details