lettuce 6.9.0.RELEASE

The Lettuce team is pleased to announce the Lettuce 6.9.0 release! This release changes how commands are rejected while a connection is not available. Read the behavior change below before you upgrade.

Lettuce 6 supports Redis 2.6+ up to Redis 8.2. In terms of Java runtime, Lettuce requires at least Java 8 and works with Java 21.

Thanks to all contributors who made Lettuce 6.9.0 possible.

• GitHub Discussions: https://github.com/lettuce-io/lettuce-core/discussions
• Stack Overflow (Questions): https://stackoverflow.com/questions/tagged/lettuce
• Join the chat at https://discord.gg/redis and look for the “Help:Tools Lettuce” channel
• GitHub Issues (Bug reports, feature requests): https://github.com/lettuce-io/lettuce-core/issues
• Documentation: https://lettuce.io/core/6.9.0.RELEASE/reference/
• Javadoc: https://lettuce.io/core/6.9.0.RELEASE/api/

Behavior change

This applies when commands are rejected while disconnected: with DisconnectedBehavior.REJECT_COMMANDS, or with DisconnectedBehavior.DEFAULT and auto-reconnect disabled.

• Redis Cluster: a command now fails right away when the connection to its target node is still being established, for example the first commands to a node after startup, or after a new slot mapping appears. This also applies to commands redirected with MOVED/ASK. Before, these commands waited for the connection attempt, up to the connect timeout.
• All connection types: when writing a command to the channel fails, the command is now rejected instead of being re-queued.

To avoid rejections right after startup, connect to the cluster nodes up front.

This change is also in 7.7.0 and later. The 7.0.x – 7.6.x lines do not include it.

Fixes

• DisconnectedBehavior.REJECT_COMMANDS does not fail fast for Redis Cluster commands waiting on lazy node connection establishment in https://github.com/redis/lettuce/issues/3747 (backport of https://github.com/redis/lettuce/pull/3782 by @Vaibhav026)

Full Changelog: https://github.com/redis/lettuce/compare/6.8.2.RELEASE…6.9.0.RELEASE

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Source redis/lettuce · 6.9.0.RELEASE · 2026-10-16 · upstream release

Mirrored verbatim for indexing. All rights belong to the upstream project.