OpenZL 0.3 adds a faster LZ engine and an automatic numeric-compression selector
Meta’s OpenZL 0.3 release reports 33% faster LZ decompression than 0.2; on its stated 64 KB-window comparison, the project measured 3,062 MB/s versus Zstandard’s 1,254 MB/s at similar compression ratios. A new “Compression Transformer” builds a codec graph per input without per-source training; across the project’s 34,737-file numeric-stream set, it reports 35% better compression than zstd -19 on average.
These are project-reported benchmarks on selected workloads, not general-purpose guarantees. Phoronix’s three-comment forum page returned HTTP 403, so reader reactions were unavailable.