Check feature flag change history with Vercel CLI

The newly added vercel flags versions <flag> command in Vercel CLI lets you print the full revision history of a specific flag. Each revision includes the author, message, timestamp, and information about which environments changed.

Filtering and automation options are also supported:

• --environment: filter by a specific environment (e.g., production)
• --limit / --cursor: pagination
• --json: JSON output for scripting

You can compare between revisions with the vercel flags versions diff <flag> --revision <n> command. The diff shows field-level changes—such as targeting rules, rollout percentages, and conditions—in semantic units, with additions, deletions, and modifications color-coded with +, -, and ~ symbols respectively.