# v2.1.0-alpha.537

## Changes

- style: fix biome formatting and import order (710d44c1)
- feat: energy/power measurement support on composed devices (977cf34f)
- test: add matter.js API regression test suite (6ad74629)
- docs: add controller compatibility matrix and mapping blueprints (e23695cc)
- docs: add matter.js upgrade checklist to developer documentation (df94531d)
- feat: mDNS/network diagnostic API endpoint and frontend card (198a2228)
- feat: latency instrumentation in state update path (a380d748)
- feat: multi-admin fabric diagnostics in session info and health API (59e7ef96)
- feat: emit diagnostic warning for unsupported sensor device_class (cc40bd2b)

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⚠️ **This is an alpha release** - use at your own risk!