The open-source Redis 8.6 release is now available and this GA release has brought "substantial" performance improvements and to memory reduction too. Plus various new features like TLS certificate-based automatic client authentication, time series enhancements, and new eviction policies.

Among the performance improvements with Redis 8.6 are optimizing prefetching, ZRANK optimizations, using the hardware block by default on AArch64, optimizing user ACL permission verification, optimizing peak memory metric collection, reducing per-command system calls, and various vector optimizations especially for Intel and AMD CPUs.

The release notes classify the performance improvements and memory reductions as "substantial" but haven't yet seen any performance comparison benchmarks for reference.

Downloads and more details on Redis 8.6 open-source via GitHub .