Resource

• Add Entity support to the Resource SDK specification. (#5201)

Entities

• Add Entity specification. (#5201)

OpenTelemetry Protocol

• Add max request / response size options to list of OTLP exporter configuration options. (#5235)

Compatibility

• Clarify the interaction between Prometheus content negotiation and translation strategy. (#5134)
• Stabilize sections of Prometheus Metrics Exporter.
  • Stabilize Target section. (#5221)

OTEPs

• Thread Context: Sharing Thread-Level Information with the OpenTelemetry eBPF Profiler. (#4947)

New Contributors

• @scottgerring made their first contribution in https://github.com/open-telemetry/opentelemetry-specification/pull/4947