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+Libpng 1.6.20 - December 3, 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-1.6.20.tar.xz (LZMA-compressed, recommended)
+ libpng-1.6.20.tar.gz
+
+Source files with CRLF line endings (for Windows), without the
+"configure" script
+
+ /scratch/glennrp/Libpng16/lpng1620.7z (LZMA-compressed, recommended)
+ /scratch/glennrp/Libpng16/lpng1620.zip
+
+Other information:
+
+ libpng-1.6.20-README.txt
+ libpng-1.6.20-LICENSE.txt
+ libpng-1.6.20-*.asc (armored detached GPG signatures)
+
+Changes since the last public release (1.6.19):
+ Avoid potential pointer overflow/underflow in png_handle_sPLT() and
+ png_handle_pCAL() (Bug report by John Regehr).
+ Fixed incorrect implementation of png_set_PLTE() that uses png_ptr
+ not info_ptr, that left png_set_PLTE() open to the CVE-2015-8126
+ vulnerability.
+ Backported tests from libpng-1.7.0beta69.
+ Fixed an error in handling of bad zlib CMINFO field in pngfix, found by
+ American Fuzzy Lop, reported by Brian Carpenter. inflate() doesn't
+ immediately fault a bad CMINFO field; instead a 'too far back' error
+ happens later (at least some times). pngfix failed to limit CMINFO to
+ the allowed values but then assumed that window_bits was in range,
+ triggering an assert. The bug is mostly harmless; the PNG file cannot
+ be fixed.
+ In libpng 1.6 zlib initialization was changed to use the window size
+ in the zlib stream, not a fixed value. This causes some invalid images,
+ where CINFO is too large, to display 'correctly' if the rest of the
+ data is valid. This provides a workaround for zlib versions where the
+ error arises (ones that support the API change to use the window size
+ in the stream).
+
+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