performance

The first release candidate of Valkey 9.2 introduces fork-free backups, reusable ACL roles, a radix-tree Path Hash type, and a B+ tree for large sorted sets.

A Rustdoc team member traced a Crater-flagged regression to an expensive impl-inlining pass and shipped four PRs averaging a 33% speedup.

The Linux Foundation's Redis fork ships multi-tenant access control, native JSON logs, and throughput gains, cutting per-key memory by up to 10 percent.

ClickHouse 26.5 arrives on May 21 with 38 new features, 51 performance optimizations, a 27x Merge table speedup, Iceberg V3 geometry support, and new SQL compatibility aliases for PostgreSQL, Snowflake, and BigQuery.

Go 1.26 ships with the Green Tea garbage collector enabled by default, replacing the object-centric mark-sweep algorithm with a page-level scanner that reduces GC CPU costs by 10 to 40 percent in real-world workloads.

Oracle releases JDK 26 with ten JEPs spanning HTTP/3 client support, garbage-collector-independent ahead-of-time object caching, G1 throughput gains of up to 15 percent, and the final removal of the Applet API deprecated since JDK 17.

Vercel releases Next.js 16.2 with experimental AI agent tooling, a React contribution that speeds up Server Component rendering by up to 350 percent, Turbopack Server Fast Refresh, and over 200 bug fixes.

Python 3.15.0a7 introduces frozendict as a built-in type, explicit lazy imports for faster startup, a statistical sampling profiler, and JIT compiler improvements delivering up to 9% speedups.

Go 1.26 RC3 shipped February 4 with the Green Tea GC as default, an experimental SIMD package, post-quantum TLS, and enhanced generics.