oxipng/CHANGELOG.md

Version 0.7.0

• Minor compression improvement on interlaced images
• Performance optimizations
• [SEMVER_MINOR] Move default Options into a Default impl
• [SEMVER_MINOR] Add option for setting number of threads (#39)

Version 0.6.0

• Fix issue where output directory would not be created if it did not exist
• Use miniz for compression strategies where it outperforms zlib
• [SEMVER_MINOR] Partially implement -p / --preserve, as far as stable Rust will allow for now
• [SEMVER_MINOR] Implement --fix to ignore CRC errors and recalculate correct CRC in output

Version 0.5.0

• [SEMVER_MINOR] Palette entries can now reduced, on by default (#11)
• Don't report that we are in pretend mode if verbosity is set to none
• Add cargo bench suite (#7)

Version 0.4.0

• Performance optimizations
• [SEMVER_MAJOR] -s automatically infers --strip safe (#31)
• Update byteorder and clap crates
• Fix issue where interlaced images incorrectly applied filters on the first line of a pass

Version 0.3.0

• Properly decode interlaced images
• [SEMVER_MINOR] Allow converting between progressive and interlaced images (#3)
• Fix a bug that would cause oxipng to crash on very small images

Version 0.2.2

• Limit number of threads to 1.5x number of cores
• Significantly improve memory usage, especially with high optimization levels. (#32)
• Refactor output code (#19)

Version 0.2.1

• Add rustdoc for public methods and structs
• Improve filter mode 5 heuristic (#16)
• Add tests for edge-case images with subtitles (#29)

Version 0.2.0

• Fix program version that is displayed when running oxipng -V
• Ensure --quiet mode is actually quiet (@SethDusek #20)
• Write status/debug information to stderr instead of stdout
• Use heuristics to determine best combination for -o1 (#21)
• [SEMVER_MAJOR] Allow 'safe', 'all', or comma-separated list as options for --strip
• [SEMVER_MINOR] Add -s alias for --strip

Version 0.1.1

• Fix oxipng * writing all input files to one output file (#15)

Version 0.1.0

• Initial beta release
• Reduce color type and bit depth
• Recompress with zlib
• Multithreading
• Strip headers option
• Backup file before writing option
• Write to stdout option