1. 2017-01-15 [1] [Zlib-announce] zlib 1.2.11 released zlib-announc Mark Adler 2. 2017-01-03 [1] [Zlib-announce] zlib 1.2.10 released zlib-announc Mark Adler 3. 2017-01-01 [1] [Zlib-announce] zlib 1.2.9 released zlib-announc Mark Adler