LZ4 supports two frame formats: a legacy format and a newer format that provides additional features like content checksums, block checksums using the xxHash algorithm, and dictionary IDs.
LZ4 belongs to the LZ77 family of compression algorithms. It achieves speed by using a simplified token system: : Uncompressed data that is copied directly.
: Expect compression speeds of over 500 MB/s per core and decompression speeds in the GB/s range. License : The software is open-source under a BSD license .
The v1.8.3 release brought several improvements to the LZ4 framework, ensuring robustness and efficiency. When running on 64-bit Windows, this version provides: