Libpng 1.6.29rc01 - March 8, 2017 This is not intended to be a public release. It will be replaced within a few weeks by a public version or by another test version. Files available for download: Source files with LF line endings (for Unix/Linux) and with a "configure" script 1.6.29rc01.tar.xz (LZMA-compressed, recommended) 1.6.29rc01.tar.gz Source files with CRLF line endings (for Windows), without the "configure" script lp1629r01.7z (LZMA-compressed, recommended) lp1629r01.zip Other information: 1.6.29rc01-README.txt 1.6.29rc01-LICENSE.txt libpng-1.6.29rc01-*.asc (armored detached GPG signatures) Changes since the last public release (1.6.28): Version 1.6.29beta01 [January 12, 2017] Readded "include(GNUInstallDirs)" to CMakeLists.txt (Gianfranco Costamagna). Moved SSE2 optimization code into the main libpng source directory. Configure libpng with "configure --enable-intel-sse" or compile libpng with "-DPNG_INTEL_SSE" in CPPFLAGS to enable it. Simplified conditional compilation in pngvalid.c, for AIX (Michael Felt). Version 1.6.29beta02 [February 22, 2017] Avoid conditional directives that break statements in pngrutil.c (Romero Malaquias) The contrib/examples/pngtopng.c recovery code was in the wrong if branches; the comments were correct. Added code for PowerPC VSX optimisation (Vadim Barkov). Version 1.6.29beta03 [March 1, 2017] Avoid potential overflow of shift operations in png_do_expand() (Aaron Boxer). Change test ZLIB_VERNUM >= 0x1281 to ZLIB_VERNUM >= 0x1290 in pngrutil.c because Solaris 11 distributes zlib-1.2.8.f that is older than 1.2.8.1. Suppress clang warnings about implicit sign changes in png.c Version 1.6.29rc01 [March 8, 2017] 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