154 lines
7 KiB
Markdown
154 lines
7 KiB
Markdown
### Version 0.17.0 (unreleased)
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- [SEMVER_MAJOR] Bump minimum required rustc version to 1.19.0
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- [SEMVER_MINOR] Oxipng will now, by default, attempt to change all transparent pixels to `rgba(0, 0, 0, 0)` to improve compression.
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It does fast trials with filters 0 and 5 to see if this is an improvement over
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the existing alpha channel.
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- [SEMVER_MINOR] Add a `-a` option to the command line (`alphas` in the struct) which enables 6 different
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trials for optimizing the alpha channel, using the previously mentioned fast heuristic.
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This option will make optimization of images with transparency somewhat slower,
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but may improve compression.
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### Version 0.16.3
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- Fix command-line help text ([#70](https://github.com/shssoichiro/oxipng/issues/70))
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### Version 0.16.2
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- Publicly export `error` module
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### Version 0.16.1
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- Fix rayon's breaking changes that they made in a point release
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### Version 0.16.0
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- [SEMVER_MAJOR] Bump minimum rustc version to 1.17.0
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- Bump `image` to 0.14
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- Bump `rayon` to 0.8
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### Version 0.15.2
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- Bump `image` to 0.13 ([#65](https://github.com/shssoichiro/oxipng/pull/65))
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- Bump `rayon` to 0.7
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- Bump `itertools` to 0.6
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### Version 0.15.1
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- Ignore color reductions that would increase file size ([#61](https://github.com/shssoichiro/oxipng/issues/61))
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### Version 0.15.0
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- [SEMVER_MINOR] Check images for correctness before writing result ([#60](https://github.com/shssoichiro/oxipng/issues/60))
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- Fix invalid output when reducing image to a different color type but file size does not improve ([#60](https://github.com/shssoichiro/oxipng/issues/60))
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- Don't write new file if moving from interlaced to non-interlaced if new file would be larger
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### Version 0.14.4
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- Fix bug when reducing RGBA to Indexed if image has 256 colors plus a background color
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### Version 0.14.3
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- Fix multiple bugs when reducing transparency palettes
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### Version 0.14.2
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- Fix a bug when reducing palette in images with bit depth less than 8
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- Fix a bug when reducing palette in images with transparency
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### Version 0.14.1
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- Remove zlib dependency and switch entirely to miniz, since zlib 1.2.11 was not working with oxipng. This costs some performance, but is better than having a broken application.
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### Version 0.14.0
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- Performance optimizations
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- [SEMVER_MAJOR] Bump minimum rustc version to 1.13.0
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- Add categories on crates.io
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### Version 0.13.1
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- Bump regex dependency to 0.2
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- Bump byteorder dependency to 1.0
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- Bump rayon dependency to 0.6
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### Version 0.13.0
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- Fix bug in certain PNG headers when reducing color type ([#52](https://github.com/shssoichiro/oxipng/issues/52))
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- [SEMVER_MAJOR] Reduction functions now take `&mut PngData` and return a `bool` indicating whether the image was reduced
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- [SMEVER_MAJOR] Bump minimum required rustc version to 1.12.0
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### Version 0.12.0
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- Performance optimizations
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- Fix processing filenames that contain commas (@aliceatlas [#50](https://github.com/shssoichiro/oxipng/pull/50))
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- [SEMVER_MINOR] Add zopfli option (-Z), disabled by default. Gives about 10% better compression, but is currently 50-100x slower.
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### Version 0.11.0
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- [SEMVER_MAJOR] Bump minimum rustc version to 1.9.0, required by dependencies
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- [SEMVER_MINOR] Allow calling optimization presets via crate using `Options::from_preset`
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- [SEMVER_MAJOR] Return proper `PngError` type which implements `std::error::Error` from `Result`s
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- [SEMVER_MAJOR] Rename module `deflate::deflate` to `deflate`
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- Performance optimizations
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### Version 0.10.0
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- [SEMVER_MINOR] Make clap and regex dependencies optional
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- Enabled by default, needed for executable build; can be disabled for use in crates
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- Remove reduction from palette to grayscale, which was not working and provided minimal benefit
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### Version 0.9.0
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- [SEMVER_MAJOR] Significant refactoring of modules
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- Use `itertools` to cleanup areas of code
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- Use multiple threads for filtering trials
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### Version 0.8.2
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- Fix issue where images smaller than 4px width would crash on interlacing ([#42](https://github.com/shssoichiro/oxipng/issues/42))
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### Version 0.8.1
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- Minor optimizations
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- Fix issue where interlaced images with certain widths would fail to optimize
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### Version 0.8.0
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- [SEMVER_MINOR] Add support for optimizing PNGs already loaded into memory via library function
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### Version 0.7.0
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- Minor compression improvement on interlaced images
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- Performance optimizations
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- [SEMVER_MINOR] Move default Options into a Default impl
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- [SEMVER_MINOR] Add option for setting number of threads ([#39](https://github.com/shssoichiro/oxipng/issues/39))
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### Version 0.6.0
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- Fix issue where output directory would not be created if it did not exist
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- Use miniz for compression strategies where it outperforms zlib
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- [SEMVER_MINOR] Partially implement -p / --preserve, as far as stable Rust will allow for now
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- [SEMVER_MINOR] Implement --fix to ignore CRC errors and recalculate correct CRC in output
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### Version 0.5.0
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- [SEMVER_MINOR] Palette entries can now reduced, on by default ([#11](https://github.com/shssoichiro/oxipng/issues/11))
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- Don't report that we are in pretend mode if verbosity is set to none
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- Add cargo bench suite ([#7](https://github.com/shssoichiro/oxipng/issues/7))
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### Version 0.4.0
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- Performance optimizations
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- [SEMVER_MAJOR] `-s` automatically infers `--strip safe` ([#31](https://github.com/shssoichiro/oxipng/issues/31))
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- Update byteorder and clap crates
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- Fix issue where interlaced images incorrectly applied filters on the first line of a pass
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### Version 0.3.0
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- Properly decode interlaced images
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- [SEMVER_MINOR] Allow converting between progressive and interlaced images ([#3](https://github.com/shssoichiro/oxipng/issues/3))
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- Fix a bug that would cause oxipng to crash on very small images
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### Version 0.2.2
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- Limit number of threads to 1.5x number of cores
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- Significantly improve memory usage, especially with high optimization levels. ([#32](https://github.com/shssoichiro/oxipng/issues/32))
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- Refactor output code ([#19](https://github.com/shssoichiro/oxipng/issues/19))
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### Version 0.2.1
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- Add rustdoc for public methods and structs
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- Improve filter mode 5 heuristic ([#16](https://github.com/shssoichiro/oxipng/issues/16))
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- Add tests for edge-case images with subtitles ([#29](https://github.com/shssoichiro/oxipng/issues/29))
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### Version 0.2.0
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- Fix program version that is displayed when running `oxipng -V`
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- Ensure `--quiet` mode is actually quiet (@SethDusek [#20](https://github.com/shssoichiro/oxipng/pull/20))
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- Write status/debug information to stderr instead of stdout
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- Use heuristics to determine best combination for `-o1` ([#21](https://github.com/shssoichiro/oxipng/issues/21))
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- [SEMVER_MAJOR] Allow 'safe', 'all', or comma-separated list as options for `--strip`
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- [SEMVER_MINOR] Add `-s` alias for `--strip`
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### Version 0.1.1
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- Fix `oxipng *` writing all input files to one output file ([#15](https://github.com/shssoichiro/oxipng/issues/15))
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### Version 0.1.0
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- Initial beta release
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- Reduce color type and bit depth
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- Recompress with zlib
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- Multithreading
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- Strip headers option
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- Backup file before writing option
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- Write to stdout option
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