Version 1.46.0 (2025-08-25)

[dnwe]

Note

This release contains significant changes. Notably Sarama will now use the ApiVersionRequest response from each broker to aid in selecting the protocol version to use. The existing Version field in sarama.Config will continue to provide a "pinning" mechanism, but can safely be set to a maximum or higher value than the remote cluster and sarama will sensibly pick compatible versions. There is also a performance improvement relating to MetadataRequests whereby Sarama will avoid having more than a single request to each broker in-flight at any given time. These new (optimal) behaviour is on by default can be opt-ed out via the Metadata.SingleFlight field in Config.

What's Changed

🎉 New Features / Improvements

• feat(protocol): negotiate API versions by @trapped in feat(protocol): negotiate API versions #3209
• feat: option to group metadata refreshes so only one is in-flight at a time by @cupcicm in feat: option to group metadata refreshes so only one is in-flight at a time #3225
• feat: use singleflight metadata by default by @dnwe in feat: use singleflight metadata by default #3231
• feat(protocol): support CreateTopicRequest V4 by @dnwe in feat(protocol): support CreateTopicRequest V4 #3238
• feat: always send ApiVersionsRequest and fallback to v0 by @dnwe in feat: always send ApiVersionsRequest and fallback to v0 #3234

🐛 Fixes

• fix(consumer): stuck on the batch with zero records length by @sterligov in fix(consumer): stuck on the batch with zero records length #3221
• fix: sync response header version to clamped request header by @trapped in fix: sync response header version to clamped request header #3223
• fix(decoder): handle null arrays correctly by @dnwe in fix(decoder): handle null arrays correctly #3144
• fix: hardcode lz4 writer blocksize to 64kb by @dnwe in fix: hardcode lz4 writer blocksize to 64kb #3258

📦 Dependency updates

• chore(deps): bump the golang-x group across 1 directory with 2 updates by @dependabot[bot] in chore(deps): bump the golang-x group across 1 directory with 2 updates #3185
• chore(deps): bump the golang-x group across 7 directories with 2 updates by @dependabot[bot] in chore(deps): bump the golang-x group across 7 directories with 2 updates #3219
• fix(deps): update module golang.org/x/net to v0.43.0 by @renovate[bot] in fix(deps): update module golang.org/x/net to v0.43.0 #3244
• chore(deps): bump the golang-x group across 6 directories with 1 update by @dependabot[bot] in chore(deps): bump the golang-x group across 6 directories with 1 update #3262
• chore(deps): update github/codeql-action action to v3.29.9 by @renovate[bot] in chore(deps): update github/codeql-action action to v3.29.9 #3242
• fix(deps): update github.com/rcrowley/go-metrics digest to 65e299d by @renovate[bot] in fix(deps): update github.com/rcrowley/go-metrics digest to 65e299d #3164
• fix(deps): update module github.com/stretchr/testify to v1.11.0 by @renovate[bot] in fix(deps): update module github.com/stretchr/testify to v1.11.0 #3268
• chore(deps): update docker/bake-action action to v6.9.0 by @renovate[bot] in chore(deps): update docker/bake-action action to v6.9.0 #3264

🔧 Maintenance

• chore(lint): enable copyloopvar by @alexandear in chore(lint): enable copyloopvar #3214
• chore: fix inconsistent function name in comment by @stellrust in chore: fix inconsistent function name in comment #3227
• chore(style): refactor compress.go for readability by @dnwe in chore(style): refactor compress.go for readability #3260
• chore: replace unnecessary go-multierror dependency by @bestbug456 in chore: replace unnecessary go-multierror dependency #3243

New Contributors

• @ibm-mend-app[bot] made their first contribution in Configure Mend for GitHub Enterprise #3201
• @alexandear made their first contribution in chore(lint): enable copyloopvar #3214
• @trapped made their first contribution in feat(protocol): negotiate API versions #3209
• @cupcicm made their first contribution in feat: option to group metadata refreshes so only one is in-flight at a time #3225
• @sterligov made their first contribution in fix(consumer): stuck on the batch with zero records length #3221
• @stellrust made their first contribution in chore: fix inconsistent function name in comment #3227
• @bestbug456 made their first contribution in chore: replace unnecessary go-multierror dependency #3243

Full Changelog: v1.45.2...v1.46.0

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This discussion was created from the release Version 1.46.0 (2025-08-25).