Git tag

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• You release a new version of your software.
• What if later you'll need to come back to the same commit and make some changes?
• How to remember which SHA-1 was this release?

$ git tag v1.10
$ git tag -a v1.10 -m "commit message"

• A tag marks a specific commit. The former is a "light weight tag", the latter is an "annotated tag".
• The light weight tag is just like a branch that does not move. A pointer to a commit.
• An annotated tag is a full object with owner and message (annotation).
• git push --follow-tags only pushes annotated tags