- Breaking changes: updated gRPC error codes, removed many deprecated config structs/functions (e.g., GRPCClientSettings, DialContext) and switched to new ClientConfig/ServerConfig structures; added strict component.Type validation.
- New features and enhancements: added component.UseLocalHostAsDefaultHost gate, host-header support in confighttp, exporterhelper queue API, and featuregate.ErrAlreadyRegistered error handling.
- Bug fixes: fixed goroutine leak in otlpreceiver, corrected opencensus bridge configuration, and treated PartialSuccess as success with warning in otlpexporter.