Git Tags and Release Markers

Git Tags and Release Markers

This lesson deepens Git & Collaboration Workflows using the same subject areas emphasized by official documentation: Git official documentation: refs, branching, rebasing, hooks, signing, submodules, worktrees and repository policy. The goal is to turn Git Tags and Release Markers into a production skill: you should know the concept, the configuration surface, the safety controls, the operational checks, and the rollback path.

Documentation Coverage

• Core terms and object model for this topic.
• Configuration options, defaults, and lifecycle behavior from the docs.
• Security, reliability, and ownership boundaries.
• Validation steps before and after the change.
• Common failure modes and diagnostic signals.

Production Implementation Flow

1. Define the source of truth: Git, configuration, API, state file, or control plane.
2. Design the safest repeatable workflow, including dry-run or plan output where possible.
3. Attach CI/CD, policy, security, and peer-review gates.
4. Observe metrics, logs, events, or traces after the change.
5. Document rollback, escalation owner, and evidence for the change record.

git log --oneline --decorate --graph -20
git verify-commit HEAD
gh pr checks --watch
gh ruleset list

Mastery Standard

You understand Git Tags and Release Markers when you can explain it, configure it, test it, monitor it, and recover it under incident pressure without relying on undocumented manual steps.