v1.28.0

1.28.0

🚀 (Enhancement)

• feat(sdk-metrics, sdk-trace): add mergeResourceWithDefaults flag, which allows opting-out of resources getting merged with the default resource #4617

  • default: true (no change in behavior)
  • note: false will become the default behavior in the next major version in order to comply with specification requirements

• feat(sdk-trace-base): add spanProcessors property in TracerConfig interface. #5138 @david-luna

🐛 (Bug Fix)

• fix(sdk-metrics): await exports in PeriodicExportingMetricReader when async resource attributes have not yet settled #5119 @pichlermarc
• fix(sdk-trace): performance.now() may return the same value for consecutive calls #5150 @dyladan
• fix(sdk-trace-base): pass BatchSpanProcessor#forceFlush() errors on visibilitychange/pagehide to globalErrorHandler #5143 @pichlermarc
  • fixes a bug where switching browser tabs with a failing exporter would cause an unhandled error