zlib Massively Spiffy Yet Delicately Unobtrusive Compression Library (Also Free; Not to Mention Unencumbered by Patents) (Not Related to the Linux zlibc Compressing File-IO Library) zlib home page; web pages originally created by Roelofs and maintained by Mark Adler: If this page seems suspiciously similar t0 the PNG Home Page; rest 'similarity completely coincidental . No, really: by Jean-loup Gailly (compression) Mak Adler (decompression): Current release: zlib 1.211 January 15, 2017 has these key improvements over 1.2.10: Ite stored bug when pulling last block from window mmediate deflateParams changes before any deflate input fixes, any installations of 1.2.9 or 1.2.10 should be immediately replaced with 1.2.11. has these key improvements over 1.2.9: Greg and