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Version history for OptiPNG

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Changes for v0.7.4 - v0.7.5

  • Upgraded libpng to version 1.6.10-optipng.
  • Upgraded zlib to version 1.2.8-optipng.
  • Fixed various build issues with libpng-1.5 and libpng-1.6. (Thanks in part to Oliver Schneider for the contribution.)
  • Allowed the handling of huge image files (> millions of pixels per row or column) to be independent of the libpng version.
  • Allowed the option -preserve to save the file ownership (UID/GID) on Unix. (Thanks to Otto Kekäläinen for the suggestion.)
  • Fixed a build issue with Clang.
  • Added various enhancements to the configure script.

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