The .tar.xz extension indicates the file is a "tarball" compressed using compression, which typically offers higher compression ratios than the standard .tar.gz format.
This version introduced several bug fixes and stability improvements: Security Patch (CVE-2022-37434): Fixed a heap-based buffer overflow vulnerability in inflateGetHeader() that occurred when processing extra fields in gzip headers. Compression Optimization: Improved block type selection when using
Developers downloading zlib usually have a choice between .tar.gz and .tar.xz . The XZ format is often preferred for several reasons: