- DIY backends now support full stack‑tag CRUD, system tag injection, filtering, and atomic operations with versioned .pulumi tags files.
- Added replacement trigger support to the Node.js SDK and version setting for Python component providers; CLI 'about' now shows Node.js package manager info.
- Various bug fixes across CLI, engine, SDKs, and miscellaneous improvements, plus startup performance boost for service‑as‑backend and language runtime metadata updates.