Libpng 1.6.26beta02 - October 1, 2016 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 1.6.26beta02.tar.xz (LZMA-compressed, recommended) 1.6.26beta02.tar.gz Source files with CRLF line endings (for Windows), without the "configure" script lp1626b02.7z (LZMA-compressed, recommended) lp1626b02.zip Other information: 1.6.26beta02-README.txt 1.6.26beta02-LICENSE.txt libpng-1.6.26beta02-*.asc (armored detached GPG signatures) Changes since the last public release (1.6.25): Version 1.6.26beta01 [September 26, 2016] Fixed handling zero length IDAT in pngfix (bug report by Agostino Sarubbo, bugfix by John Bowler). Do not issue a png_error() on read in png_set_pCAL() because png_handle_pCAL has allocated memory that libpng needs to free. Conditionally compile png_set_benign_errors() in pngread.c and pngtest.c Issue a png_benign_error instead of a png_error on ADLER32 mismatch while decoding compressed data chunks. Changed PNG_ZLIB_VERNUM to ZLIB_VERNUM in pngpriv.h, pngstruct.h, and pngrutil.c. If CRC handling of critical chunks has been set to PNG_CRC_QUIET_USE, ignore the ADLER32 checksum in the IDAT chunk as well as the chunk CRCs. Issue png_benign_error() on ADLER32 checksum mismatch instead of png_error(). Add tests/badcrc.png and tests/badadler.png to tests/pngtest. Merged pngtest.c with libpng-1.7.0beta84/pngtest.c Version 1.6.26beta02 [October 1, 2016] Updated the documentation about CRC and ADLER32 handling. Quieted 117 warnings from clang-3.8 in pngtrans.c, pngread.c, pngwrite.c, pngunknown.c, and pngvalid.c. Quieted 116 (out of 288) -Wconversion compiler warnings by changing flag definitions in pngpriv.h from 0xnnnn to 0xnnnnU and trivial changes in png.c, pngread.c, and pngwutil.c. 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