Context

• Recommend instead of require global propagators.
  (#5294)

Metrics

• Add view_matching_mode parameter to MeterProvider to support composable View matching.
  (#5173)
• Clarify maxExportBatchSize behavior, timeouts, and error handling for
  Periodic exporting MetricReader.
  (#5265)
• Mark maxExportBatchSize on Periodic exporting MetricReader as stable.
  (#5291)

Resource

• Allow the named service resource detector (used via declarative config or explicit detector configuration) to fall back to
  platform-specific sources when OTEL_SERVICE_NAME is not set.
  (#5280)

Common

• Add AttributeValueDepthLimit for nested array and map attribute values.
  (#5186)
• Remove requirement for attribute ordering from compliance matrix.
  (#5205)

Compatibility

• Stabilize content negotiation section for the Prometheus exporter.
  (#5136)
• Update the OpenTelemetry Exponential Histogram to Prometheus Native Histogram
  with standard (exponential) schema transformation.
  (#5125)
• Stabilize resource_constant_labels configuration for the Prometheus exporter.
  (#5130)

New Contributors

• @aryansk made their first contribution in #5260
• @mmanciop made their first contribution in #5280
• @herin049 made their first contribution in #5190