Bump com.ibm.icu:icu4j from 78.2 to 78.3

[dependabot]

Bumps com.ibm.icu:icu4j from 78.2 to 78.3.

Release notes

Sourced from com.ibm.icu:icu4j's releases.

ICU 78.3

Unicode® ICU 78.3 is a maintenance update on top of ICU 78 and 78.2, mostly for the CLDR 48.2 bug fixes. In addition, it fixes a C++ code point iterator bug, and updates to timezone data 2026a.

Details: ICU 78 Download: releases/tag/release-78.3 Maven: com.ibm.icu / icu4j / version 78.3

The next major release of ICU will be ICU 79, planned for October. It will update to CLDR 49 and Unicode 18.

Commits

• 21d1eb0 ICU-23316 Integrate CLDR 48.2 (final) to ICU maint-78; updates one tool
• 45e94fa ICU-23316 Integrate CLDR 48.2 beta2 to ICU maint-78 all: source/binary genera...
• 0ab3d4f ICU-23330 update to 2026a from icu-data
• 6e0839d ICU-23316 Integrate CLDR 48.2 beta1 to ICU maint-78, part 3: ICU code/test/to...
• 7eb213f ICU-23316 Integrate CLDR 48.2 beta1 to ICU maint-78, part 2: source data/test...
• a7d9a58 ICU-23316 Integrate CLDR 48.2 beta1 to ICU maint-78, part 1: binary data gene...
• 910bb20 ICU-23256 Fix floating exception while divided by 0
• a08339b ICU-23316 ICU 78.3 BRS Update version number to 78.3
• cfcdce7 ICU-23316 ICU 78.3 BRS: disable fuzzer
• 418c5d6 ICU-23316 Integrate CLDR 48.2 beta0 to ICU maint-78, part 3: ICU code/test/to...
• Additional commits viewable in compare view

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[github-actions]

🤖 Claude Code Review

PR Code Review

Change Summary: Dependency bump — com.ibm.icu:icu4j 78.2 → 78.3 in pom.xml (test scope only).

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Code Quality

• ✅ Style guide: Single version string change, no style concerns.
• ✅ No commented-out code
• ✅ Meaningful variable names: N/A
• ✅ DRY principle: N/A
• ✅ Defects: No logic changes; test-scoped dependency bump only. No runtime impact.
• ✅ CLAUDE.md: No issues.

Testing

• ✅ Tests: This is a test-scoped dependency (<scope>test</scope>). No new production code introduced; existing tests cover usage.
• ✅ Edge cases: N/A for a patch version bump.
• ⚠️ Test coverage: Cannot verify from diff alone, but no new code paths were introduced.

Documentation

• ✅ README: No update needed.
• ✅ API docs: No update needed.
• ✅ Inline comments: N/A
• ⚠️ CHANGELOG.md: Dependency bumps are typically noted in a changelog. Verify if this project maintains one and whether dependency updates are expected to be recorded.
• ✅ Markdown formatting: N/A

Security

• ✅ No hardcoded credentials
• ✅ No license files (.lic) checked in
• ✅ 78.3 is a patch release of ICU4J — upgrading from 78.2 is a routine maintenance bump. No known security regressions expected; test-only scope limits blast radius to zero at runtime.

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Summary

This is a low-risk, routine dependency update. The only item worth verifying is whether CHANGELOG.md should record this bump per project convention. No blocking issues.

Automated code review analyzing defects and coding standards