open-telemetry/opentelemetry-java v1.12.0

Version 1.12.0

on GitHub

This release includes many breaking changes to the metrics SDK as we move towards marking its first stable release.
Notably, if you configure metric Views or have written a custom metric exporter, many of the classes and methods will
have been moved or renamed. There are still a few remaining cleanups targeted for the next release after which there
should not be many. Thanks for bearing with us on this.

API

• New methods have been added to Context to propagate context for common Java 8 callback types
• AttributesBuilder.put now supports vararg versions for lists with AttributeKey
• Multiple metric async callbacks can be registered for the same instrument, and callbacks can be removed

SDK

• An issue with Android desugaring of the SDK has been worked around
• EXPERIMENTAL: Support for disabling resource keys with OTEL_EXPERIMENTAL_RESOURCE_DISABLED_KEYS
• Fixed handling of schemaUrl in Resource.toBuilder()
• BREAKING: Many changes to Data classes used during export
• BREAKING: Many view configuration methods have been removed

Metrics

• APIs deprecated in the previous release have been removed
• DEPRECATION: PrometheusCollector for exporting OpenTelemetry metrics with the prometheus client library has been deprecated
• EXPERIMENTAL: File-based configuration of views
• Prometheus exporter now supports JPMS modules

Logs

• DEPRECATION: LogData.getName has been deprecated for removal