MINOR: Bump LATEST_PRODUCTION to 4.4-IV2 for 4.4.0 - #23235
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KIP-1191 (IBP_4_4_IV0), KIP-1276 (IBP_4_4_IV1), and KIP-1312 (IBP_4_4_IV2) have all been merged for the 4.4 release. Bump LATEST_PRODUCTION to IBP_4_4_IV2 so these features are actually enabled in 4.4.0. Also move the "unstable versions" comment block after IBP_4_4_IV2 per the in-file instruction, update LATEST_STABLE_METADATA_VERSION in tests/kafkatest/version.py to match, and adjust MetadataVersionTest and FormatterTest so the "unstable latest" invariants are asserted conditionally (matching the pattern established on trunk in apache#23125), since on the 4.4 release branch there is no unstable MetadataVersion after the promoted one. Reported-by: Andrew Schofield on the 4.4.0 RC0 vote thread Co-Authored-By: Claude Opus 4.7 <claude@anthropic.com>
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cc @chia7712 as 4.4.0 release manager, and @AndrewJSchofield who reported this on the RC0 vote thread. Requesting review so this can go into 4.4.0 RC1. |
chia7712
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Aug 22, 2026
| LATEST_STABLE_TRANSACTION_VERSION = 2 | ||
| # This should match the LATEST_PRODUCTION version defined in MetadataVersion.java | ||
| LATEST_STABLE_METADATA_VERSION = "4.3-IV0" | ||
| LATEST_STABLE_METADATA_VERSION = "4.4-IV2" |
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Would you please run the related E2E test locally?
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Reported on the 4.4.0 RC0 vote thread:
metadata.versionin RC0 shipped as4.3-IV0instead of4.4-IV2.KIP-1191 (IBP_4_4_IV0), KIP-1276 (IBP_4_4_IV1), and KIP-1312 (IBP_4_4_IV2) have all been merged for the 4.4 release. Bump LATEST_PRODUCTION to IBP_4_4_IV2 so these features are actually enabled in 4.4.0.
Also move the "unstable versions" comment block after IBP_4_4_IV2 per the in-file instruction, update LATEST_STABLE_METADATA_VERSION in tests/kafkatest/version.py to match, and adjust MetadataVersionTest and FormatterTest so the "unstable latest" invariants are asserted conditionally (matching the pattern established on trunk in #23125), since on the 4.4 release branch there is no unstable MetadataVersion after the promoted one.
Testing
Ran
./gradlew buildlocally on JDK 17, plus targeted:./gradlew server-common:test --tests "*MetadataVersion*"./gradlew metadata:test --tests "*FormatterTest*"./gradlew tools:test --tests "*FeatureCommandTest*"All green.
Reported-by: Andrew Schofield on the 4.4.0 RC0 vote thread
Reviewers: Chia-Ping Tsai chia7712@gmail.com