- Add --whats-new flag to bd info command - Display agent-relevant changes from last 3 versions - Support both human-readable and JSON output - Add version changelog data structure with workflow-impacting changes - Add comprehensive tests for version changes structure - Update AGENTS.md with whats-new documentation Helps agents efficiently learn what changed between bd versions without re-reading full documentation. Addresses weekly major version releases requiring workflow adaptations. Closes bd-eiz9 Amp-Thread-ID: https://ampcode.com/threads/T-5fe7e93d-7398-41c5-94bf-e914f2b331dd Co-authored-by: Amp <amp@ampcode.com>