Valkey 9.0.0-rc2 release notes
Upgrade urgency levels:
| Level | Meaning |
|---|---|
| LOW | No need to upgrade unless there are new features you want to use. |
| MODERATE | Program an upgrade of the server, but it's not urgent. |
| HIGH | There is a critical bug that may affect a subset of users. Upgrade! |
| CRITICAL | There is a critical bug affecting MOST USERS. Upgrade ASAP. |
| SECURITY | There are security fixes in the release. |
Upgrade urgency LOW: This is the second release candidate of Valkey 9.0.0,
focused on stability, bug fixes, and incremental improvements.
Attention Valkey Module maintainers: There is a new module option to
indicate support for the Atomic Slot Migration (ASM) feature. Modules must
explicitly opt in to ASM; otherwise, this feature will be disabled in clusters
that load modules without ASM support.
Bug Fixes
- Fix module context object re-use in scripting engines (#2358)
- Fix pre-size hashtables per slot when reading RDB files (#2466)
- Do not migrate script functions in atomic slot migration (#2547)
- Don't use AVX2 instructions if the CPU don't support it (#2571)
Performance/Efficiency
- Optimized pipelining by parsing and prefetching multiple commands (#2092)
Cluster and Replication
- Make cluster failover delay relative to node timeout (#2449)
- Separate RDB snapshotting from atomic slot migration (#2533)
Module API
- Added new module API event for tracking authentication attempts (#2237)
- Added READONLY flag to ClientInfo.flags output structure (#2522)
- Make modules opt-in to atomic slot migration and add server events (#2593)
Configuration
- Added new cluster-announce-client-(port|tls-port) configs (#2429)
- CONFIG RESETSTATS now also resets cluster related stats (#2458)
- Make CONFIG GET command return sorted output (#2493)
Commands
- Update reply schema for LMOVE and BLMOVE (#2541)
- Most deprecated commands are now un-deprecated (#2546)
Upgrade
- Relaxed RDB check for foreign RDB formats (#2543)
CLI
- Added word-jump navigation (Alt/Option/Ctrl + ←/→) to valkey-cli (#2583)