- Breaking changes: otlpreceiver defaults to localhost (disable with feature gate), $FOO env var expansion removed (use ${env:FOO} or disable feature gate), and otelcol.NewCommand now requires a provider.
- New features and enhancements include HTTP client cookie support, stable configretry module, added processor "inserted" metrics, and improved debug exporter output.
- Bug fixes for DNS validation in otlpexporter, IPv6 metrics endpoint startup, and additional deprecations of otelcoltest load functions and NewCommandMustSetProvider.