August 2025 release.

Logs

• Improve concurrency safety description of LogRecordProcessor.OnEmit.
  (#4578)
• Clarify that SeverityNumber values are used when comparing severities.
  (#4552)

Entities

• Mention entity references in the stability guarantees.
  (#4593)

OpenTelemetry Protocol

• Clarify protocol defaults on specification.
  (#4585)

Compatibility

• Flexibilie escaping of characters that are discouraged by Prometheus Conventions
  in Prometheus exporters.
  (#4533)
• Flexibilize addition of unit/type related suffixes in Prometheus exporters.
  (#4533)
• Define the configuration option "Translation Strategies" for Prometheus exporters.
  (#4533)
• Define conversion of Prometheus native histograms to OpenTelemetry exponential histograms.
  (#4561)
• Clarify what to do when scope attribute conflicts with name, version and schema URL.
  (#4599)

SDK Configuration

• Enum values provided via environment variables SHOULD be interpreted in a case-insensitive manner.
  (#4576)