- Breaking: removed deprecated fields (IdleConnTimeout, MaxIdleConns, MaxIdleConnsPerHost, DisableKeepAlives) from pkg/confighttp and deprecated componentstatus.Watcher.
- Feature: added xreceiverhelper with profile sample metrics per type, promoted queue batch processor to beta/alpha, introduced GC config in memory limiter, and many performance enhancements (pdata map, oneof updates, config overrides).
- Security & bugfixes: bounded zstd decoder windows to request/body limits and added recursion depth limits to protobuf unmarshalling; numerous fixes across cmd/mdatagen, exporterhelper, service shutdown, and other components.