Release version 0.13.0

Changed

• Swagger generation updated to openapiv2 due to the use of an updated version of protoc in otel/build-protobuf
• Clarify attribute key uniqueness requirement (#350)
• Fix path to Go packages (#360)

Added

• Add ObservedTimestamp to LogRecord. (#351)
• Add native kotlin support (#337)

Removed

• Remove unused deprecated message StringKeyValue (#358)
• Remove experimental metrics config service (#359)

Release version 0.12.0

0.12.0 - 2022-01-20

Changed

• Rename logs to log_records in InstrumentationLibraryLogs. (#352)

Removed

• Remove deprecated messages and fields from traces. (#341)
• Remove deprecated messages and fields from metrics. (#342)

Release version 0.11.0

Version 0.11.0 adds:

• ExponentialHistogram is a base-2 exponential histogram described in OTEP 149. (#322)
• Adds TracesData, MetricsData, and LogsData container types for common use
  in transporting multiple ResourceSpans, ResourceMetrics, and ResourceLogs. (#332)

Release version 0.10.0

0.10.0 - 2021-09-07

Full list of differences found in this compare.

Maturity

• collector/logs/* is now considered Beta. (#311)
• logs/* is now considered Beta. (#311)

Added

• Metrics data points add a flags field with one bit to represent explicitly missing data. (#316)

Release version 0.9.0

Full list of differences found in this compare.

Maturity

• collector/metrics/* is now considered stable. (#305)
• metrics/*{-experimental} is now considered stable. (#305)

Changed: Metrics

• 🛑 [DATA MODEL CHANGE] Histogram/Summary sums must be monotonic counters of events (#302)
• 🛑 [DATA MODEL CHANGE] Clarify requirements and semantics for start time (#295)
• 🛑 [BREAKING] Deprecate labels field from NumberDataPoint, HistogramDataPoint, SummaryDataPoint and add equivalent attributes field (#283)
• 🛑 [BREAKING] Deprecate filtered_labels field from Exemplars and add equivalent filtered_attributes field (#283)

Added

• Common - Add bytes (binary) as data type to AnyValue (#297)
• Common - Add schema_url fields as described in OTEP 0152 (#298)

Release version 0.8.0

0.8.0 - 2021-03-23

Full list of differences found in this compare.

Changed: Metrics

• 🛑 [DEPRECATION] Deprecate IntSum, IntGauge, and IntDataPoint (#278)
• 🛑 [DEPRECATION] Deprecate IntExemplar (#281)
• 🛑 [DEPRECATION] Deprecate IntHistogram (#270)
• 🛑 [BREAKING] Rename DoubleGauge to Gauge (#278)
• 🛑 [BREAKING] Rename DoubleSum to Sum (#278)
• 🛑 [BREAKING] Rename DoubleDataPoint to NumberDataPoint (#278)
• 🛑 [BREAKING] Rename DoubleSummary to Summary (#269)
• 🛑 [BREAKING] Rename DoubleExemplar to Exemplar (#281)
• 🛑 [BREAKING] Rename DoubleHistogram to Histogram (#270)
• 🛑 [DATA MODEL CHANGE] Make explicit bounds compatible with OM/Prometheus (#262)

v0.7.0 release

• Add Summary metric type
• Declare Metrics beta
• Clarify what empty instrumentation name means, and missing instrumentation library

v0.6.0 release

💡 Enhancements 💡

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

v0.5.0 release

🛑 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.

v0.4.0 release

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)