libpng 1.5.2 has been released [] noreply at
Fri Apr 8 21:13:29 PDT 2011

Dear subscriber,

glennrp just announced version 1.5.2 of libpng on

The changes are as follows:

A major reorganization of the build system was undertaken. The png_ptr and
png_info structs are now opaque, i.e., their members are not accessible to
applications and have been moved into separate private header files. The
pngvalid.c testing program was added.

Project description:

libpng (PNG library) is a collection of routines used 
to create and manipulate PNG format graphics files. 
The PNG format was designed as a replacement for 
GIF and, to a lesser extent, TIFF, with many 
improvements and extensions.

Detailed history and release notes are available here:

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Best regards,

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