chore(main): release 2.68.0

[release-please]

🤖 I have created a release beep boop

2.68.0

2.68.0 (2026-03-17)

Features

• Add client request duration metric. (#4132) (6a76397)
• Add more attributes to golden signals metrics. (#4135) (59d0624)
• gax-httpjson: add HttpJsonErrorParser utility (#4137) (a1b7565)
• generator: add extra allowed modules that will not be removed from the monorepo if they are present (#4124) (774fe6e)
• o11y: introduce gcp.client.repo and gcp.client.artifact attributes (#4120) (105f644)
• o11y: Introduce rpc.system.name and rpc.method in gRPC (#4121) (7ab6d2e)
• o11y: introduce server.port attribute (#4128) (56aa343)

Bug Fixes

• add null checks for ApiTracerFactory in ClientContext (#4122) (4b3dbe2)
• Decrease log level for directpath warnings outside GCE (#4139) (c9651e7)
• gax-grpc: add pick_first fallback to direct path service config (#4143) (b150fe9)
• Populate method level attributes in metrics recording (#4149) (7b7e6c9)
• suppress warnings in generated projects for non-idiomatic durations (#4119) (4206e6e)
• Use ServiceName + MethodName as the regex for Otel (#2543) (b9ae73f)

Documentation

• hermetic_build: fix config field name in readme (#4130) (a0c8f67)

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This PR was generated with Release Please. See documentation.

[lqiu96]

/gcbrun

[lqiu96]

/gcbrun

[sonarqubecloud]

Quality Gate passed for 'gapic-generator-java-root'

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[lqiu96]

/gcbrun

[sonarqubecloud]

Quality Gate passed for 'java_showcase_integration_tests'

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[release-please]

🤖 Created releases:

• v2.68.0

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