Vercel has added version history inspection for feature flags directly in the CLI. Running `vercel flags versions <flag>` prints the full revision history for any Vercel Flag, including author, commit message, timestamp, and which environments were affected.
The diff command is the detail worth noting: `vercel flags versions diff <flag> --revision <n>` produces a semantic, field-level comparison against the previous revision. It surfaces changes to targeting rules, rollout percentages, and conditions, marked with +, -, and ~ for additions, removals, and modifications. Filtering by environment, pagination via --limit and --cursor, and --json output for scripting are all supported.
Flag auditing has historically required dashboard access or external logging. Putting revision diffs in the CLI closes that gap for teams already working in terminal-first workflows. Read the Vercel Flags CLI documentation for the full command reference.
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