Libpng 1.5.22 - March 26, 2015 This is a public release of libpng, intended for use in production codes. Files available for download: Source files with LF line endings (for Unix/Linux) and with a "configure" script libpng-1.5.22.tar.xz (LZMA-compressed, recommended) libpng-1.5.22.tar.gz libpng-1.5.22.tar.bz2 Source files with CRLF line endings (for Windows), without the "configure" script lpng1522.7z (LZMA-compressed, recommended) lpng1522.zip Other information: libpng-1.5.22-README.txt libpng-1.5.22-LICENSE.txt libpng-1.5.22-*.asc (armored detached GPG signatures) Changes since the last public release (1.5.21): Regenerated configure scripts with libtool-2.4.4 Made the check for out-of-range values in png_set_tRNS() detect values that are exactly 2^bit_depth, and work on 16-bit platforms. Quieted some warnings from Coverity-scan. Merged pngtest.c with libpng-1.6.17/pngtest.c Display user limits in the output from pngtest. Eliminated the PNG_SAFE_LIMITS macro and restored the 1-million-column and 1-million-row default limits in pnglibconf.dfa, that can be reset by the user at build time or run time. This provides a more robust defense against DOS and as-yet undiscovered overflows. Added PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED macro, on by default. Allow user to call png_get_IHDR() with NULL arguments (Reuben Hawkins). Rebuilt configure scripts with automake-1.15 and libtool-2.4.6 Removed some comments that the configure script did not handle properly from scripts/pnglibconf.dfa and pnglibconf.h.prebuilt. Merged png_free_data() with libpng-1.6.17 Updated CMakeLists.txt to add OSX framework, change YES/NO to ON/OFF for consistency, and remove some useless tests (Alexey Petruchik). Remove pnglibconf.h, pnglibconf.c, and pnglibconf.out instead of pnglibconf.* in "make clean" (Cosmin). Fix incorrect calculation of maximum number of unknown chunks or sPLT chunks to be stored (John Bowler). Send comments/corrections/commendations to png-mng-implement at lists.sf.net (subscription required; visit https://lists.sourceforge.net/lists/listinfo/png-mng-implement to subscribe) or to glennrp at users.sourceforge.net Glenn R-P