💡 Enhancements 💡

• Deprecated old Span status code and added a new status code according to specification (#224)

🛑 Breaking changes 🛑

• Metrics protocol was refactored, and lots of breaking changes.
  • Removed MetricDescriptor and embedded into Metric and the new data types.
  • Add new data types Gauge/Sum/Histogram.
  • Make use of the "AggregationTemporality" into the data types that allow that support.
• Remove generated golang structs from the repository

💡 Enhancements 💡

• Rename enum values to follow the proto3 style guide.
• Enable build to use docker image otel/build-protobuf to be used in CI. Can also be used by the languages to generate protos.

This is a Release Candidate to declare Metrics part of the protocol Stable.

Important: this is a breaking release. The protocol is incompatible with the previous release.

This is a Release Candidate to declare Traces part of the protocol Stable.

Changes

Traces and Resources

• Added support for arrays and maps for attribute values (AnyValue) (#157).

Metrics

• Removed common labels from MetricDescriptor (#144).
• Add temporality to MetricDescriptor (#140).
• Add Monotonic Types (#145)

• Initial protos for trace, metrics, resource and OTLP.