Release v0.46.0

What's Changed

• Upgrade various Go dependencies. #1463, #1466, #1682
• Upgrade Go toolchain to v1.25.4. #1464
• Upgrade to v0.140.0/v0.140.1/v1.46.0 of collector dependencies. #1470
  • Note: Collector-Contrib dependencies were released at v0.140.1 due to some release process failures.
• Upgrade to v0.142.0/v1.48.0 of collector dependencies. #1682
• Upgrade arrow-go to v18.5.0. #1702
  • Note: Includes small changes to JSON serialization of timestamps due to upstream bugfix.
• Upgrade to v0.143.0/v1.49.0 of collector dependencies. #1732

Full Changelog: v0.45.0...v0.46.0

Go Modules

This release includes the following Go modules:

• github.com/open-telemetry/otel-arrow/go@v0.46.0
• github.com/open-telemetry/otel-arrow/collector/cmd/otelarrowcol@v0.46.0

Release v0.45.0

What's Changed

• Upgrade to v0.139.0 / v1.45.0 of collector dependencies. #1401

Full Changelog: v0.44.0...v0.45.0

Go Modules

This release includes the following Go modules:

• github.com/open-telemetry/otel-arrow/go@v0.45.0
• github.com/open-telemetry/otel-arrow/collector/cmd/otelarrowcol@v0.45.0

Release v0.44.0

What's Changed

• Upgrade to v0.137.0 / v1.43.0 of collector dependencies. #1298

Full Changelog: v0.43.0...v0.44.0

Go Modules

This release includes the following Go modules:

• github.com/open-telemetry/otel-arrow/go@v0.44.0
• github.com/open-telemetry/otel-arrow/collector/cmd/otelarrowcol@v0.44.0

Release v0.43.0

What's Changed

• Upgrade to v0.136.0 / v1.39.0 of collector dependencies. #1176

Full Changelog: v0.42.0...v0.43.0

Go Modules

This release includes the following Go modules:

• github.com/open-telemetry/otel-arrow/go@v0.43.0
• github.com/open-telemetry/otel-arrow/collector/cmd/otelarrowcol@v0.43.0

Release v0.42.0

What's Changed

• Standardize to shorthand license header. #954
• Fix logs handling of missing optional trace_id and span_id columns. #973
• Upgrade to v0.133.0 / v1.37.0 of collector dependencies. #890, #1010
  • Notable upgrade, this also bumps minimum Go version from 1.23.0 to 1.24, see collector #13627 and collector-contrib #41968.

Full Changelog: v0.41.0...v0.42.0

Go Modules

This release includes the following Go modules:

• github.com/open-telemetry/otel-arrow/go@v0.42.0
• github.com/open-telemetry/otel-arrow/collector/cmd/otelarrowcol@v0.42.0

Release v0.41.0

What's Changed

• Add proper automation in prepare-release workflow for collector/otelarrowcol-build.yaml. #804
• Upgrade various Go dependencies. #866
• Upgrade to v0.131.0 / v1.37.0 of collector dependencies. #866

Full Changelog: v0.40.0...v0.41.0

Go Modules

This release includes the following Go modules:

• github.com/open-telemetry/otel-arrow/go@v0.41.0
• github.com/open-telemetry/otel-arrow/collector/cmd/otelarrowcol@v0.41.0

Release v0.40.0

What's Changed

• Upgrade to v0.130.0 / v1.36.0 of collector dependencies. #718
• Use replaces directive to builder config to use dependencies from go folder when referenced as github.com/open-telemetry/otel-arrow/go. #718

Full Changelog: v0.39.0...v0.40.0

Go Modules

This release includes the following Go modules:

• github.com/open-telemetry/otel-arrow/go@v0.40.0
• github.com/open-telemetry/otel-arrow/collector/cmd/otelarrowcol@v0.40.0

Release v0.39.0

Note: v0.39.0 is the first attempted release of the renamed go module github.com/open-telemetry/otel-arrow/go

• Upgrade to v0.129.0 / v1.35.0 of collector dependencies. #669
• Change module name to github.com/open-telemetry/otel-arrow/go. #574

Release v0.38.0

• Downgrade Go to 1.23.0. #569
• Mark terminal version of github.com/open-telemetry/otel-arrow module. #572
• Retract github.com/open-telemetry/otel-arrow v0.37.0. #572

Release v0.37.0

Note: v0.36.0 was attempted on 2025-06-09 but had to be retracted per problems mentioned #566. This version (v0.37.0) contains a module retraction for v0.36.0. The Release object in GitHub was also deleted because it was virtually unusable.

• Remove concurrentbatch and obfuscation processors. #409
• OTAP AttributeStore parent_id encoding cleanup. #431
• Upgrade Go to 1.24.3. #440, #508
• Fix time unit of DurationTimeUnixNano to Duration_ns in Traces. #517
• Upgrade to v0.127.0 / v1.33.0 of collector dependencies. #526
• Retract github.com/open-telemetry/otel-arrow v0.36.0. #567