Sourced from org.mongodb:mongodb-driver-sync's releases.

Java Driver 5.5.0 (May 07, 2025)

What's Changed

🚀 New Features and Improvements

• Credential Handling:

  • Added option to configure Data Encryption Key (DEK) cache lifetime (#1689).

• Performance Optimizations:

  • Enhanced BSON codec lookup (#1632).
  • Optimized BSON decoding (#1667).
  • Reduced temporary buffer allocations during BSON serialization (#1628).
  • Optimized numeric value writing (#1635).
  • Improved String write and length computations (#1651, #1685).
  • Enhanced buffer handling to avoid direct list access (#1675).
  • Replaced Stack with ArrayDeque for better performance (#1681).

• Resource Management:

  • Fixed Netty event loop resource leak on MongoClient close (#1646).
  • Added connection timeout to TLS Channel (#1686).

• Compatibility and Maintenance:

  • Dropped support for MongoDB 4.0 (#1663).
  • Updated AWS SDK dependencies to the latest versions (#1639).
  • Replaced org.jetbrains.annotations.NotNull with com.mongodb.lang.NonNull (#1644).

• Benchmarks and Testing:

  • Introduced Netty benchmark suite (#1647).
  • Added benchmarks for BulkWrite operations (#1657).
  • Began running benchmarks against MongoDB 8.0 (#1660).

• Bug Fixes and Stability:

  • Made ReadConcernMajorityNotAvailableYet retryable (#1601).
  • Ensured findOne does not unnecessarily set batchSize=1 (#1659).
  • Fixed unnecessary killCursors command when batchSize equals limit (#1656).

• Documentation and Quality of Life:

  • Improved documentation around the toCollection API (#1677).
  • Updated specification links and submodule management (#1662, #1670).
  • Added Dependabot support for Git submodules (#1691).

• Kotlin Improvements:

... (truncated)

• 6b13ae1 Version: bump 5.5.0
• fdc3ecb Build: Fix Scala publishing
• ea5e698 Revert "Version: bump 5.6.0-SNAPSHOT"
• 6020597 Version: bump 5.6.0-SNAPSHOT
• 380e519 Revert version bump back to 5.5.0-SNAPSHOT
• 4611ad6 Gradle: Ensure maven artifacts are signed. (#1709)
• 2bd813e Revert "Version: bump 5.6.0-SNAPSHOT"
• 912cad7 Version: bump 5.6.0-SNAPSHOT
• 24f1b63 Fix validation in release.yml (#1706)
• a6d7d1d Update release.yml
• Additional commits viewable in compare view

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