############# Release Notes #############

4.0.2

Fixes

• Streaming mode EXACT was ignoring the target_bytes parameter.

Java

• Added a toString method to the Tuple class.

4.0.1

Fdbcli

• Added a configure auto command which will recommend a setting for proxies and logs (not resolvers) along with machine class changes.
• Added a setclass command which can change a process's machine class from fdbcli.

Performance

• Improved the recovery speed of the transaction subsystem.
• Improved the stability of the transaction rate under saturating workloads.
• Made the transaction log more memory efficient.

Features

• Added support for Versionstamp atomic operations.

Fixes

• It was not safe to allocate multiple directories concurrently in the same transaction in the directory layer.

Bindings

• API version updated to 400. See the :ref:API version upgrade guide <api-version-upgrade-guide-400> for upgrade details.

Java

• Changed the package for the Java bindings from com.foundationdb to com.apple.cie.foundationdb.

Python

• Tuple support for integers up to 255 bytes.

Other changes

• Added detailed metric logging available through Scope.
• An optional configuration parameter has been added that allows you to specify a seed cluster file.

Earlier release notes

• :doc:3.0 (API Version 300) <release-notes-300>
• :doc:2.0 (API Version 200) <release-notes-200>
• :doc:1.0 (API Version 100) <release-notes-100>
• :doc:Beta 3 (API Version 23) <release-notes-023>
• :doc:Beta 2 (API Version 22) <release-notes-022>
• :doc:Beta 1 (API Version 21) <release-notes-021>
• :doc:Alpha 6 (API Version 16) <release-notes-016>
• :doc:Alpha 5 (API Version 14) <release-notes-014>