v1.0.0

• Improved the error message on wrong usage.
• The file format, command-line interface, and hicolor.h API should be considered stable.

v0.6.1

Changes from v0.6.1:

• Improved PNG saving performance.

Note: this is likely the last release to include binaries for i386 (i686) Linux.

v0.6.0

Changes from v0.5.0:

• Fixed vulnerabilities to maliciously constructed PNG files.
• Reduced memory usage by reading and writing PNGs one row at a time.
• Modified the build to support macOS.

v0.5.0

Changes from v0.4.0:

• A second dithering algorithm has been added: "a dither", pattern 3.
• Color values are decoded to the full 0–255 range instead of 0–252 (the green channel in 16-bit mode) or 0–248 (otherwise). This change expands the color gamut. It does not increase color accuracy in the abstract (it is still one value to four or eight), but it may increase color accuracy in practice. Images as a whole most likely have more 255 than 248 or 252 color values.
• More improvements to help, usage, and error messages.
• Regular help is printed to standard output, not standard error.

v0.4.0

Changes from v0.3.1:

• Better command-line argument parsing and error reporting.
• The help message has been improved.

v0.3.1

Changes from v0.3.0:

• Binaries include .debug_info.
• Fixed a segfault when loading images that are too large on i386 and other 32-bit architectures.

v0.3.0

Changes from v0.2.1:

• Better (correct) dithering;
• No more generation loss with dithering;
• Crashes on very large and truncated images are now errors.

v0.2.1

build(version): bump to 0.2.1

v0.2.0

feat(cli/quantize): preserve transparency

v0.2.0

v0.1.1

build(lib): bump version to 0.1.1