- Added builder config for opt‑in resource detection processors and mdatagen support for opt‑in sending queue defaults (disable via env var).
- Implemented Profiles development version metadata in OTLP receiver/exporters with improved attribute dictionary handling and version validation.
- Fixed O(n²) scan in mdatagen, exporterhelper deadlocks and oversized batch drops, xhash collisions, and added config redaction in otelcol snapshots.