Tuist cache artifacts are now compressed with AppleArchive/LZFSE instead of being stored as uncompressed zips. On a representative 2.45 GB local cache, this reduces download size by roughly 76% (about 22% of the raw size). LZFSE also compresses and decompresses considerably faster than the previous zip/deflate options.
The cache format version is bumped from 5 to 6 so older CLIs cleanly miss a cache key and rebuild instead of trying to decompress an AppleArchive .aar they cannot read. This requires a one-time cache re-warm when upgrading to this CLI.