Version 5.0.1

2021-11-15 11:42:06 -05:00 · 2021-11-15 11:42:06 -05:00 · c888142bcb
commit c888142bcb
parent bc0d673af0
3 changed files with 291 additions and 220 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -1,4 +1,10 @@
+### Version 5.0.1
+
+- [Bugfix] Fix an issue where -o5 and -o6 were not testing all options
+- [Misc] Bump miniz_oxide to 0.5
+
 ### Version 5.0.0
+
 - [Breaking] Bump minimum Rust version to 1.46.0
 - [Bugfix] Avoid many panics that may occur on broken files
 - [Bugfix] Fix race condition that may cause tests to fail
@ -8,20 +14,24 @@
 - [Misc] Bump `crc` to 2.x

 ### Version 4.0.3
+
 - Bump itertools to 0.10.x
 - Temporarily disable i686 releases, which were failing due to an odd linker issue,
  so that at least amd64 builds will publish successfully
  - This only relates to the releases published on Github. You can still manually compile oxipng for any platform.

 ### Version 4.0.2
+
 - Includes another update to libdeflater that improves support for targets
  without a C stdlib, like wasm32.

 ### Version 4.0.1
+
 - Includes an update to libdeflater that improves support for targets
  without a C stdlib, like wasm32.

 ### Version 4.0.0
+
 - [Breaking] Bump minimum Rust version to 1.45.0
 - [Feature] Make `libdeflater` and `zopfli` optional for API users
 - [Bugfix] Fix cloudflare-zlib on aarch64 CPUs
@ -30,11 +40,13 @@
 - Various internal improvements

 ### Version 3.0.1
+
 - [Bugfix] Re-add `--force` flag to CLI
  - This was accidentally removed somehow
 - Many non-breaking dependency version bumps

 ### Version 3.0.0
+
 - [Breaking] Bump minimum Rust version to 1.41.0
 - [Breaking] Use IndexMap/IndexSet to provide more consistent performance ([#202](https://github.com/shssoichiro/oxipng/pull/202))
  - This changes some public-facing types.
@ -54,311 +66,371 @@
 - Various performance and internal improvements

 ### Version 2.3.0
- - Allow disabling all alpha optimizations ([#181](https://github.com/shssoichiro/oxipng/pull/181))
- - Fix interlacing issues on tiny images ([#182](https://github.com/shssoichiro/oxipng/pull/182))
- - Reduce memory usage in filtering ([#191](https://github.com/shssoichiro/oxipng/pull/191))
- - Implement palette sorting to improve compression ([#193](https://github.com/shssoichiro/oxipng/pull/193))
- - Disable alpha optimizations by default ([#187](https://github.com/shssoichiro/oxipng/pull/187))
- - Add support for WASM ([#194](https://github.com/shssoichiro/oxipng/pull/194))
+
+- Allow disabling all alpha optimizations ([#181](https://github.com/shssoichiro/oxipng/pull/181))
+- Fix interlacing issues on tiny images ([#182](https://github.com/shssoichiro/oxipng/pull/182))
+- Reduce memory usage in filtering ([#191](https://github.com/shssoichiro/oxipng/pull/191))
+- Implement palette sorting to improve compression ([#193](https://github.com/shssoichiro/oxipng/pull/193))
+- Disable alpha optimizations by default ([#187](https://github.com/shssoichiro/oxipng/pull/187))
+- Add support for WASM ([#194](https://github.com/shssoichiro/oxipng/pull/194))

 ### Version 2.2.2
- - Fix grayscale bit-depth reduction ([#171](https://github.com/shssoichiro/oxipng/pull/171))
- - Fix typos and incorrect log message ([#172](https://github.com/shssoichiro/oxipng/pull/172))
- - Make metadata order deterministic ([#174](https://github.com/shssoichiro/oxipng/pull/174))
- - Fix 32-bit builds ([#176](https://github.com/shssoichiro/oxipng/pull/176))
- - Enable LTO in release builds ([#177](https://github.com/shssoichiro/oxipng/pull/177))
- - Use deterministic compression strategy ([#179](https://github.com/shssoichiro/oxipng/pull/179))
- - Fix decoding interlaced images with height or width <= 2 ([#175](https://github.com/shssoichiro/oxipng/pull/175))
- - Preallocate memory in reduced_alpha_to_up ([#180](https://github.com/shssoichiro/oxipng/pull/180))
- - Update `bit-vec` crate to 0.6
+
+- Fix grayscale bit-depth reduction ([#171](https://github.com/shssoichiro/oxipng/pull/171))
+- Fix typos and incorrect log message ([#172](https://github.com/shssoichiro/oxipng/pull/172))
+- Make metadata order deterministic ([#174](https://github.com/shssoichiro/oxipng/pull/174))
+- Fix 32-bit builds ([#176](https://github.com/shssoichiro/oxipng/pull/176))
+- Enable LTO in release builds ([#177](https://github.com/shssoichiro/oxipng/pull/177))
+- Use deterministic compression strategy ([#179](https://github.com/shssoichiro/oxipng/pull/179))
+- Fix decoding interlaced images with height or width <= 2 ([#175](https://github.com/shssoichiro/oxipng/pull/175))
+- Preallocate memory in reduced_alpha_to_up ([#180](https://github.com/shssoichiro/oxipng/pull/180))
+- Update `bit-vec` crate to 0.6

 ### Version 2.2.1
- - Fix compression of very large files ([#167](https://github.com/shssoichiro/oxipng/pull/167)) ([#168](https://github.com/shssoichiro/oxipng/pull/168))
+
+- Fix compression of very large files ([#167](https://github.com/shssoichiro/oxipng/pull/167)) ([#168](https://github.com/shssoichiro/oxipng/pull/168))

 ### Version 2.2.0
- - Various internal improvements ([#154](https://github.com/shssoichiro/oxipng/pull/154)) ([#158](https://github.com/shssoichiro/oxipng/pull/158)) ([#160](https://github.com/shssoichiro/oxipng/pull/160)) ([#161](https://github.com/shssoichiro/oxipng/pull/161)) ([#162](https://github.com/shssoichiro/oxipng/pull/162)) ([#163](https://github.com/shssoichiro/oxipng/pull/163))
- - Update `image` crate to 0.21.0
- - Update `itertools` crate to 0.8.0
- - Update `zopfli` crate to 0.4.0
- - Use Rust edition 2018
- - Bump minimum required Rust version to 1.31.0
+
+- Various internal improvements ([#154](https://github.com/shssoichiro/oxipng/pull/154)) ([#158](https://github.com/shssoichiro/oxipng/pull/158)) ([#160](https://github.com/shssoichiro/oxipng/pull/160)) ([#161](https://github.com/shssoichiro/oxipng/pull/161)) ([#162](https://github.com/shssoichiro/oxipng/pull/162)) ([#163](https://github.com/shssoichiro/oxipng/pull/163))
+- Update `image` crate to 0.21.0
+- Update `itertools` crate to 0.8.0
+- Update `zopfli` crate to 0.4.0
+- Use Rust edition 2018
+- Bump minimum required Rust version to 1.31.0

 ### Version 2.1.8
- - Fix non-standard sBIT headers in other code locations ([#153](https://github.com/shssoichiro/oxipng/issues/153))
+
+- Fix non-standard sBIT headers in other code locations ([#153](https://github.com/shssoichiro/oxipng/issues/153))

 ### Version 2.1.7
- - 80x faster palette reduction ([#150](https://github.com/shssoichiro/oxipng/pull/150))
- - Optimize RGB to palette conversion ([#148](https://github.com/shssoichiro/oxipng/pull/148))
- - Various microoptimizations ([#146](https://github.com/shssoichiro/oxipng/pull/146))
- - Introduce third-party safe wrapper around cloudflare-zlib ([#149](https://github.com/shssoichiro/oxipng/pull/149))
+
+- 80x faster palette reduction ([#150](https://github.com/shssoichiro/oxipng/pull/150))
+- Optimize RGB to palette conversion ([#148](https://github.com/shssoichiro/oxipng/pull/148))
+- Various microoptimizations ([#146](https://github.com/shssoichiro/oxipng/pull/146))
+- Introduce third-party safe wrapper around cloudflare-zlib ([#149](https://github.com/shssoichiro/oxipng/pull/149))

 ### Version 2.1.6
- - Identify and drop useless sRGB profiles ([#143](https://github.com/shssoichiro/oxipng/pull/143))
- - Alpha heuristic improvements ([#144](https://github.com/shssoichiro/oxipng/pull/144))
- - Bump `miniz_oxide` and `cloudflare-zlib-sys` to 0.2.0
+
+- Identify and drop useless sRGB profiles ([#143](https://github.com/shssoichiro/oxipng/pull/143))
+- Alpha heuristic improvements ([#144](https://github.com/shssoichiro/oxipng/pull/144))
+- Bump `miniz_oxide` and `cloudflare-zlib-sys` to 0.2.0

 ### Version 2.1.5
- - Fix issue where some images will incorrectly reduce bit depth ([#140](https://github.com/shssoichiro/oxipng/issues/140))
+
+- Fix issue where some images will incorrectly reduce bit depth ([#140](https://github.com/shssoichiro/oxipng/issues/140))

 ### Version 2.1.4
- - Bump `image` crate to 0.20.0
+
+- Bump `image` crate to 0.20.0

 ### Version 2.1.3
- - Fix i686 builds
- - Performance improvements
+
+- Fix i686 builds
+- Performance improvements

 ### Version 2.1.2
- - Fix issue with PNG to Indexed reduction on images with transparency pixel ([#129](https://github.com/shssoichiro/oxipng/issues/129))
+
+- Fix issue with PNG to Indexed reduction on images with transparency pixel ([#129](https://github.com/shssoichiro/oxipng/issues/129))

 ### Version 2.1.1
- - More fixes for alpha optimization on interlaced images ([#133](https://github.com/shssoichiro/oxipng/issues/133))
+
+- More fixes for alpha optimization on interlaced images ([#133](https://github.com/shssoichiro/oxipng/issues/133))

 ### Version 2.1.0
- - [SEMVER_MINOR] Bump minimum Rust version to 1.27.0
- - [SEMVER_MINOR] Reenable faster Cloudflare zlib compression on platforms that support it
- - Fix memory leak with Cloudflare zlib ([#126](https://github.com/shssoichiro/oxipng/issues/126))
- - Minor fixes and cleanup 
+
+- [SEMVER_MINOR] Bump minimum Rust version to 1.27.0
+- [SEMVER_MINOR] Reenable faster Cloudflare zlib compression on platforms that support it
+- Fix memory leak with Cloudflare zlib ([#126](https://github.com/shssoichiro/oxipng/issues/126))
+- Minor fixes and cleanup

 ### Version 2.0.2
- - Fix an issue in alpha optimization on interlaced images ([#113](https://github.com/shssoichiro/oxipng/issues/113))
+
+- Fix an issue in alpha optimization on interlaced images ([#113](https://github.com/shssoichiro/oxipng/issues/113))

 ### Version 2.0.1
- - Revert making Cloudflare zlib the default, as it introduced a major memory leak. It will be put back behind a feature flag, and reenabled when the issue is fixed.
- - Revert minimum Rust version to 1.24.0
+
+- Revert making Cloudflare zlib the default, as it introduced a major memory leak. It will be put back behind a feature flag, and reenabled when the issue is fixed.
+- Revert minimum Rust version to 1.24.0

 ### Version 2.0.0
- - [SEMVER_MAJOR] Make PngError a proper Error enum
- - [SEMVER_MINOR] Bump minimum Rust version to 1.27.0
- - [SEMVER_MINOR] Make Rayon an optional dependency (enabled by default)
- - [SEMVER_MINOR] Option to limit wall clock time spent in optimization trials
- - [SEMVER_MINOR] `--keep` option (works similar to `--strip`, but takes a comma-separated list of headers to keep, and removes all other non-critical headers)
- - Use faster Cloudflare zlib compression on platforms that support it
- - Allow specifying more than 2 filter types via the CLI
- - Avoid double glob processing on unix
- - Fix reading from stdin
- - Cleanup help text
- - Various performance improvements
+
+- [SEMVER_MAJOR] Make PngError a proper Error enum
+- [SEMVER_MINOR] Bump minimum Rust version to 1.27.0
+- [SEMVER_MINOR] Make Rayon an optional dependency (enabled by default)
+- [SEMVER_MINOR] Option to limit wall clock time spent in optimization trials
+- [SEMVER_MINOR] `--keep` option (works similar to `--strip`, but takes a comma-separated list of headers to keep, and removes all other non-critical headers)
+- Use faster Cloudflare zlib compression on platforms that support it
+- Allow specifying more than 2 filter types via the CLI
+- Avoid double glob processing on unix
+- Fix reading from stdin
+- Cleanup help text
+- Various performance improvements

 ### Version 1.0.4
- - Bump `image` to 0.19.0
- - Bump `bit-vec` to 0.5.0
- - Bump `regex` to 1.0.0
+
+- Bump `image` to 0.19.0
+- Bump `bit-vec` to 0.5.0
+- Bump `regex` to 1.0.0

 ### Version 1.0.3
- - Bump dependencies
+
+- Bump dependencies

 ### Version 1.0.2
- - Fix a change that breaks Itertools::flatten with recent Rust nightlies
+
+- Fix a change that breaks Itertools::flatten with recent Rust nightlies

 ### Version 1.0.1
- - Bump rayon to 1.0 ([#99](https://github.com/shssoichiro/oxipng/pull/99) @cuviper)
- - Bump minor versions of other dependencies for binary distribution
+
+- Bump rayon to 1.0 ([#99](https://github.com/shssoichiro/oxipng/pull/99) @cuviper)
+- Bump minor versions of other dependencies for binary distribution

 ### Version 1.0.0
- - Remove the C dependency on miniz, and replace it with a Rust version ([#57](https://github.com/shssoichiro/oxipng/issues/57))
-    - This improves decompression speed by 15%. Compression speed is not affected.
-    - [SEMVER_MAJOR] This also obsoletes the `-zm` command line option and the `memory` key on the `Options` struct.
-    - Presets will be updated automatically. This means that presets 3 and higher will run significantly more quickly.
- - [SEMVER_MAJOR] Adjust the presets, now that `-zm` is no longer an option.
-    - `-o3` now tests all filter types. This will result in 50% more trials than before, but may give up to 10% more compression gain.
-    - `-o4` and higher now test all alpha optimization types. This adds 5 trials specific to the alpha channel. Only transparent images are affected.
- - Implement unix-specific permissions copying for `-p` option
- - Performance optimizations
- - Refactor of internal code 
+
+- Remove the C dependency on miniz, and replace it with a Rust version ([#57](https://github.com/shssoichiro/oxipng/issues/57))
+  - This improves decompression speed by 15%. Compression speed is not affected.
+  - [SEMVER_MAJOR] This also obsoletes the `-zm` command line option and the `memory` key on the `Options` struct.
+  - Presets will be updated automatically. This means that presets 3 and higher will run significantly more quickly.
+- [SEMVER_MAJOR] Adjust the presets, now that `-zm` is no longer an option.
+  - `-o3` now tests all filter types. This will result in 50% more trials than before, but may give up to 10% more compression gain.
+  - `-o4` and higher now test all alpha optimization types. This adds 5 trials specific to the alpha channel. Only transparent images are affected.
+- Implement unix-specific permissions copying for `-p` option
+- Performance optimizations
+- Refactor of internal code

 ### Version 0.19.0
- - [SEMVER_MAJOR] Default to overwriting the input file if `out_file` is not set.
- This does not affect the CLI, but with the library, it was easy to forget to set the `out_file`,
- and there was no warning that no output file would be written.
- - Bump dependencies, reduces binary size by a considerable amount
- - Hide all modules from documentation, and only export the specific structures that should be public.
- Previously there were too many implementation details made public. The modules are still public for the purposes of our integration tests,
- but we strongly advise against using undocumented modules. These may become private in the future.
- - Internal refactoring and code cleanup
- - Fix an error message that was displaying the wrong file path
- - Fix an issue where the output file would not be written if the input was already optimized,
- even if the output path was different from the input path
+
+- [SEMVER_MAJOR] Default to overwriting the input file if `out_file` is not set.
+  This does not affect the CLI, but with the library, it was easy to forget to set the `out_file`,
+  and there was no warning that no output file would be written.
+- Bump dependencies, reduces binary size by a considerable amount
+- Hide all modules from documentation, and only export the specific structures that should be public.
+  Previously there were too many implementation details made public. The modules are still public for the purposes of our integration tests,
+  but we strongly advise against using undocumented modules. These may become private in the future.
+- Internal refactoring and code cleanup
+- Fix an error message that was displaying the wrong file path
+- Fix an issue where the output file would not be written if the input was already optimized,
+  even if the output path was different from the input path

 ### Version 0.18.3
- - Return exit code of 1 if an error occurred while processing a file using the CLI app ([#93](https://github.com/shssoichiro/oxipng/issues/93))
+
+- Return exit code of 1 if an error occurred while processing a file using the CLI app ([#93](https://github.com/shssoichiro/oxipng/issues/93))

 ### Version 0.18.2
- - Bump `image` to 0.18
- - Fix unfiltering of scan lines in interlaced images ([#92](https://github.com/shssoichiro/oxipng/issues/92))
+
+- Bump `image` to 0.18
+- Fix unfiltering of scan lines in interlaced images ([#92](https://github.com/shssoichiro/oxipng/issues/92))

 ### Version 0.18.1
- - Bump `rayon` to 0.9
- - Fix failure to optimize on certain grayscale images ([#89](https://github.com/shssoichiro/oxipng/issues/89))
+
+- Bump `rayon` to 0.9
+- Fix failure to optimize on certain grayscale images ([#89](https://github.com/shssoichiro/oxipng/issues/89))

 ### Version 0.18.0
- - Bump `itertools` to 0.7
- - Bump `image` to 0.17
- - [SEMVER_MAJOR] Bump minimum rustc version to 1.20.0
- - Fix parsing of glob paths on Windows ([#90](https://github.com/shssoichiro/oxipng/issues/90))
+
+- Bump `itertools` to 0.7
+- Bump `image` to 0.17
+- [SEMVER_MAJOR] Bump minimum rustc version to 1.20.0
+- Fix parsing of glob paths on Windows ([#90](https://github.com/shssoichiro/oxipng/issues/90))

 ### Version 0.17.2
- - Bump `image` to 0.16
- - Quickly pass over files that do not have a PNG header ([#85](https://github.com/shssoichiro/oxipng/issues/85) @emielbeinema)
- - Return an error instead of crashing on APNG files ([#83](https://github.com/shssoichiro/oxipng/issues/83) @emielbeinema)
+
+- Bump `image` to 0.16
+- Quickly pass over files that do not have a PNG header ([#85](https://github.com/shssoichiro/oxipng/issues/85) @emielbeinema)
+- Return an error instead of crashing on APNG files ([#83](https://github.com/shssoichiro/oxipng/issues/83) @emielbeinema)

 ### Version 0.17.1
- - Remove VC++ download requirement for Windows users
+
+- Remove VC++ download requirement for Windows users

 ### Version 0.17.0
- - [SEMVER_MAJOR] Bump minimum required rustc version to 1.19.0
- - [SEMVER_MINOR] Oxipng will now, by default, attempt to change all transparent pixels to `rgba(0, 0, 0, 0)` to improve compression.
-    It does fast trials with filters 0 and 5 to see if this is an improvement over
-    the existing alpha channel.
- - [SEMVER_MINOR] Add a `-a` option to the command line (`alphas` in the struct) which enables 6 different
-    trials for optimizing the alpha channel, using the previously mentioned fast heuristic.
-    This option will make optimization of images with transparency somewhat slower,
-    but may improve compression.
- - Fixed a bug in reducing palettes for images with bit depth of two ([#80](https://github.com/shssoichiro/oxipng/issues/80))
- - Fixed another bug in reducing palettes for images with bit depth less than eight ([#82](https://github.com/shssoichiro/oxipng/issues/82))
- - Code cleanup
- - Bump `image` to 0.15
+
+- [SEMVER_MAJOR] Bump minimum required rustc version to 1.19.0
+- [SEMVER_MINOR] Oxipng will now, by default, attempt to change all transparent pixels to `rgba(0, 0, 0, 0)` to improve compression.
+  It does fast trials with filters 0 and 5 to see if this is an improvement over
+  the existing alpha channel.
+- [SEMVER_MINOR] Add a `-a` option to the command line (`alphas` in the struct) which enables 6 different
+  trials for optimizing the alpha channel, using the previously mentioned fast heuristic.
+  This option will make optimization of images with transparency somewhat slower,
+  but may improve compression.
+- Fixed a bug in reducing palettes for images with bit depth of two ([#80](https://github.com/shssoichiro/oxipng/issues/80))
+- Fixed another bug in reducing palettes for images with bit depth less than eight ([#82](https://github.com/shssoichiro/oxipng/issues/82))
+- Code cleanup
+- Bump `image` to 0.15

 ### Version 0.16.3
- - Fix command-line help text ([#70](https://github.com/shssoichiro/oxipng/issues/70))
+
+- Fix command-line help text ([#70](https://github.com/shssoichiro/oxipng/issues/70))

 ### Version 0.16.2
- - Publicly export `error` module
+
+- Publicly export `error` module

 ### Version 0.16.1
- - Fix rayon's breaking changes that they made in a point release
+
+- Fix rayon's breaking changes that they made in a point release

 ### Version 0.16.0
- - [SEMVER_MAJOR] Bump minimum rustc version to 1.17.0
- - Bump `image` to 0.14
- - Bump `rayon` to 0.8
+
+- [SEMVER_MAJOR] Bump minimum rustc version to 1.17.0
+- Bump `image` to 0.14
+- Bump `rayon` to 0.8

 ### Version 0.15.2
- - Bump `image` to 0.13 ([#65](https://github.com/shssoichiro/oxipng/pull/65))
- - Bump `rayon` to 0.7
- - Bump `itertools` to 0.6
+
+- Bump `image` to 0.13 ([#65](https://github.com/shssoichiro/oxipng/pull/65))
+- Bump `rayon` to 0.7
+- Bump `itertools` to 0.6

 ### Version 0.15.1
- - Ignore color reductions that would increase file size ([#61](https://github.com/shssoichiro/oxipng/issues/61))
+
+- Ignore color reductions that would increase file size ([#61](https://github.com/shssoichiro/oxipng/issues/61))

 ### Version 0.15.0
- - [SEMVER_MINOR] Check images for correctness before writing result ([#60](https://github.com/shssoichiro/oxipng/issues/60))
- - 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))
- - Don't write new file if moving from interlaced to non-interlaced if new file would be larger
+
+- [SEMVER_MINOR] Check images for correctness before writing result ([#60](https://github.com/shssoichiro/oxipng/issues/60))
+- 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))
+- Don't write new file if moving from interlaced to non-interlaced if new file would be larger

 ### Version 0.14.4
- - Fix bug when reducing RGBA to Indexed if image has 256 colors plus a background color
+
+- Fix bug when reducing RGBA to Indexed if image has 256 colors plus a background color

 ### Version 0.14.3
- - Fix multiple bugs when reducing transparency palettes
+
+- Fix multiple bugs when reducing transparency palettes

 ### Version 0.14.2
- - Fix a bug when reducing palette in images with bit depth less than 8
- - Fix a bug when reducing palette in images with transparency
+
+- Fix a bug when reducing palette in images with bit depth less than 8
+- Fix a bug when reducing palette in images with transparency

 ### Version 0.14.1
- - 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.
+
+- 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.

 ### Version 0.14.0
- - Performance optimizations
- - [SEMVER_MAJOR] Bump minimum rustc version to 1.13.0
- - Add categories on crates.io
+
+- Performance optimizations
+- [SEMVER_MAJOR] Bump minimum rustc version to 1.13.0
+- Add categories on crates.io

 ### Version 0.13.1
- - Bump regex dependency to 0.2
- - Bump byteorder dependency to 1.0
- - Bump rayon dependency to 0.6
+
+- Bump regex dependency to 0.2
+- Bump byteorder dependency to 1.0
+- Bump rayon dependency to 0.6

 ### Version 0.13.0
- - Fix bug in certain PNG headers when reducing color type ([#52](https://github.com/shssoichiro/oxipng/issues/52))
- - [SEMVER_MAJOR] Reduction functions now take `&mut PngData` and return a `bool` indicating whether the image was reduced
- - [SMEVER_MAJOR] Bump minimum required rustc version to 1.12.0
+
+- Fix bug in certain PNG headers when reducing color type ([#52](https://github.com/shssoichiro/oxipng/issues/52))
+- [SEMVER_MAJOR] Reduction functions now take `&mut PngData` and return a `bool` indicating whether the image was reduced
+- [SMEVER_MAJOR] Bump minimum required rustc version to 1.12.0

 ### Version 0.12.0
- - Performance optimizations
- - Fix processing filenames that contain commas (@aliceatlas [#50](https://github.com/shssoichiro/oxipng/pull/50))
- - [SEMVER_MINOR] Add zopfli option (-Z), disabled by default. Gives about 10% better compression, but is currently 50-100x slower.
+
+- Performance optimizations
+- Fix processing filenames that contain commas (@aliceatlas [#50](https://github.com/shssoichiro/oxipng/pull/50))
+- [SEMVER_MINOR] Add zopfli option (-Z), disabled by default. Gives about 10% better compression, but is currently 50-100x slower.

 ### Version 0.11.0
- - [SEMVER_MAJOR] Bump minimum rustc version to 1.9.0, required by dependencies
- - [SEMVER_MINOR] Allow calling optimization presets via crate using `Options::from_preset`
- - [SEMVER_MAJOR] Return proper `PngError` type which implements `std::error::Error` from `Result`s
- - [SEMVER_MAJOR] Rename module `deflate::deflate` to `deflate`
- - Performance optimizations
+
+- [SEMVER_MAJOR] Bump minimum rustc version to 1.9.0, required by dependencies
+- [SEMVER_MINOR] Allow calling optimization presets via crate using `Options::from_preset`
+- [SEMVER_MAJOR] Return proper `PngError` type which implements `std::error::Error` from `Result`s
+- [SEMVER_MAJOR] Rename module `deflate::deflate` to `deflate`
+- Performance optimizations

 ### Version 0.10.0
- - [SEMVER_MINOR] Make clap and regex dependencies optional
-   - Enabled by default, needed for executable build; can be disabled for use in crates
- - Remove reduction from palette to grayscale, which was not working and provided minimal benefit
+
+- [SEMVER_MINOR] Make clap and regex dependencies optional
+  - Enabled by default, needed for executable build; can be disabled for use in crates
+- Remove reduction from palette to grayscale, which was not working and provided minimal benefit

 ### Version 0.9.0
- - [SEMVER_MAJOR] Significant refactoring of modules
- - Use `itertools` to cleanup areas of code
- - Use multiple threads for filtering trials
+
+- [SEMVER_MAJOR] Significant refactoring of modules
+- Use `itertools` to cleanup areas of code
+- Use multiple threads for filtering trials

 ### Version 0.8.2
- - Fix issue where images smaller than 4px width would crash on interlacing ([#42](https://github.com/shssoichiro/oxipng/issues/42))
+
+- Fix issue where images smaller than 4px width would crash on interlacing ([#42](https://github.com/shssoichiro/oxipng/issues/42))

 ### Version 0.8.1
- - Minor optimizations
- - Fix issue where interlaced images with certain widths would fail to optimize
+
+- Minor optimizations
+- Fix issue where interlaced images with certain widths would fail to optimize

 ### Version 0.8.0
- - [SEMVER_MINOR] Add support for optimizing PNGs already loaded into memory via library function
+
+- [SEMVER_MINOR] Add support for optimizing PNGs already loaded into memory via library function

 ### 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](https://github.com/shssoichiro/oxipng/issues/39))
+
+- 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](https://github.com/shssoichiro/oxipng/issues/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
+
+- 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](https://github.com/shssoichiro/oxipng/issues/11))
- - Don't report that we are in pretend mode if verbosity is set to none
- - Add cargo bench suite ([#7](https://github.com/shssoichiro/oxipng/issues/7))
+
+- [SEMVER_MINOR] Palette entries can now reduced, on by default ([#11](https://github.com/shssoichiro/oxipng/issues/11))
+- Don't report that we are in pretend mode if verbosity is set to none
+- Add cargo bench suite ([#7](https://github.com/shssoichiro/oxipng/issues/7))

 ### Version 0.4.0
- - Performance optimizations
- - [SEMVER_MAJOR] `-s` automatically infers `--strip safe` ([#31](https://github.com/shssoichiro/oxipng/issues/31))
- - Update byteorder and clap crates
- - Fix issue where interlaced images incorrectly applied filters on the first line of a pass
+
+- Performance optimizations
+- [SEMVER_MAJOR] `-s` automatically infers `--strip safe` ([#31](https://github.com/shssoichiro/oxipng/issues/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](https://github.com/shssoichiro/oxipng/issues/3))
- - Fix a bug that would cause oxipng to crash on very small images
+
+- Properly decode interlaced images
+- [SEMVER_MINOR] Allow converting between progressive and interlaced images ([#3](https://github.com/shssoichiro/oxipng/issues/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](https://github.com/shssoichiro/oxipng/issues/32))
- - Refactor output code ([#19](https://github.com/shssoichiro/oxipng/issues/19))
+
+- Limit number of threads to 1.5x number of cores
+- Significantly improve memory usage, especially with high optimization levels. ([#32](https://github.com/shssoichiro/oxipng/issues/32))
+- Refactor output code ([#19](https://github.com/shssoichiro/oxipng/issues/19))

 ### Version 0.2.1
- - Add rustdoc for public methods and structs
- - Improve filter mode 5 heuristic ([#16](https://github.com/shssoichiro/oxipng/issues/16))
- - Add tests for edge-case images with subtitles ([#29](https://github.com/shssoichiro/oxipng/issues/29))
+
+- Add rustdoc for public methods and structs
+- Improve filter mode 5 heuristic ([#16](https://github.com/shssoichiro/oxipng/issues/16))
+- Add tests for edge-case images with subtitles ([#29](https://github.com/shssoichiro/oxipng/issues/29))

 ### Version 0.2.0
- - Fix program version that is displayed when running `oxipng -V`
- - Ensure `--quiet` mode is actually quiet (@SethDusek [#20](https://github.com/shssoichiro/oxipng/pull/20))
- - Write status/debug information to stderr instead of stdout
- - Use heuristics to determine best combination for `-o1` ([#21](https://github.com/shssoichiro/oxipng/issues/21))
- - [SEMVER_MAJOR] Allow 'safe', 'all', or comma-separated list as options for `--strip`
- - [SEMVER_MINOR] Add `-s` alias for `--strip`
+
+- Fix program version that is displayed when running `oxipng -V`
+- Ensure `--quiet` mode is actually quiet (@SethDusek [#20](https://github.com/shssoichiro/oxipng/pull/20))
+- Write status/debug information to stderr instead of stdout
+- Use heuristics to determine best combination for `-o1` ([#21](https://github.com/shssoichiro/oxipng/issues/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](https://github.com/shssoichiro/oxipng/issues/15))
+
+- Fix `oxipng *` writing all input files to one output file ([#15](https://github.com/shssoichiro/oxipng/issues/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
+
+- 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
--- a/Cargo.lock
+++ b/Cargo.lock
@ -48,9 +48,9 @@ checksum = "349f9b6a179ed607305526ca489b34ad0a41aed5f7980fa90eb03160b69598fb"

 [[package]]
 name = "bitflags"
-version = "1.2.1"
+version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"

 [[package]]
 name = "build_const"
@ -60,9 +60,9 @@ checksum = "b4ae4235e6dac0694637c763029ecea1a2ec9e4e06ec2729bd21ba4d9c863eb7"

 [[package]]
 name = "bytemuck"
-version = "1.7.0"
+version = "1.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9966d2ab714d0f785dbac0a0396251a35280aeb42413281617d0209ab4898435"
+checksum = "72957246c41db82b8ef88a5486143830adeb8227ef9837740bdec67724cf2c5b"

 [[package]]
 name = "byteorder"
@ -72,9 +72,9 @@ checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"

 [[package]]
 name = "cc"
-version = "1.0.68"
+version = "1.0.72"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4a72c244c1ff497a746a7e1fb3d14bd08420ecda70c8f25c7112f2781652d787"
+checksum = "22a9137b95ea06864e018375b72adfb7db6e6f68cfc8df5a04d00288050485ee"

 [[package]]
 name = "cfg-if"
@ -145,9 +145,9 @@ dependencies = [

 [[package]]
 name = "crc"
-version = "2.0.0"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10c2722795460108a7872e1cd933a85d6ec38abc4baecad51028f702da28889f"
+checksum = "49fc9a695bca7f35f5f4c15cddc84415f66a74ea78eef08e90c5024f2b540e23"
 dependencies = [
 "crc-catalog",
 ]
@ -179,9 +179,9 @@ dependencies = [

 [[package]]
 name = "crossbeam-deque"
-version = "0.8.0"
+version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94af6efb46fef72616855b036a624cf27ba656ffc9be1b9a3c931cfc7749a9a9"
+checksum = "6455c0ca19f0d2fbf751b908d5c55c1f5cbc65e03c4225427254b46890bdde1e"
 dependencies = [
 "cfg-if",
 "crossbeam-epoch",
@ -229,9 +229,9 @@ checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"

 [[package]]
 name = "filetime"
-version = "0.2.14"
+version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d34cfa13a63ae058bfa601fe9e313bbdb3746427c1459185464ce0fcf62e1e8"
+checksum = "975ccf83d8d9d0d84682850a38c8169027be83368805971cc4f238c2b245bc98"
 dependencies = [
 "cfg-if",
 "libc",
@ -303,9 +303,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"

 [[package]]
 name = "libc"
-version = "0.2.98"
+version = "0.2.107"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "320cfe77175da3a483efed4bc0adc1968ca050b098ce4f2f1c13a56626128790"
+checksum = "fbe5e23404da5b4f555ef85ebed98fb4083e55a00c317800bc2a50ede9f3d219"

 [[package]]
 name = "libdeflate-sys"
@ -354,12 +354,11 @@ dependencies = [

 [[package]]
 name = "miniz_oxide"
-version = "0.4.4"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a92518e98c078586bc6c934028adcca4c92a53d6a958196de835170a01d84e4b"
+checksum = "d2b29bd4bc3f33391105ebee3589c19197c4271e3e5a9ec9bfe8127eeff8f082"
 dependencies = [
 "adler",
- "autocfg",
 ]

 [[package]]
@ -415,13 +414,13 @@ dependencies = [

 [[package]]
 name = "oxipng"
-version = "5.0.0"
+version = "5.0.1"
 dependencies = [
 "bit-vec",
 "byteorder",
 "clap",
 "cloudflare-zlib",
- "crc 2.0.0",
+ "crc 2.1.0",
 "crossbeam-channel",
 "filetime",
 "image",
@ -429,7 +428,7 @@ dependencies = [
 "itertools",
 "libdeflater",
 "log",
- "miniz_oxide 0.4.4",
+ "miniz_oxide 0.5.1",
 "rayon",
 "rgb",
 "rustc_version",
@ -477,18 +476,18 @@ dependencies = [

 [[package]]
 name = "redox_syscall"
-version = "0.2.9"
+version = "0.2.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ab49abadf3f9e1c4bc499e8845e152ad87d2ad2d30371841171169e9d75feee"
+checksum = "8383f39639269cde97d255a32bdb68c047337295414940c68bdd30c2e13203ff"
 dependencies = [
 "bitflags",
 ]

 [[package]]
 name = "rgb"
-version = "0.8.27"
+version = "0.8.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8fddb3b23626145d1776addfc307e1a1851f60ef6ca64f376bcb889697144cf0"
+checksum = "a27fa03bb1e3e2941f52d4a555a395a72bf79b0a85fbbaab79447050c97d978c"
 dependencies = [
 "bytemuck",
 ]
@ -510,9 +509,9 @@ checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"

 [[package]]
 name = "semver"
-version = "1.0.3"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5f3aac57ee7f3272d8395c6e4f502f434f0e289fcd62876f70daa008c20dcabe"
+checksum = "568a8e6258aa33c13358f81fd834adb854c6f7c9468520910a9b1e8fac068012"

 [[package]]
 name = "stderrlog"
@ -579,9 +578,9 @@ checksum = "a9b2228007eba4120145f785df0f6c92ea538f5a3635a612ecf4e334c8c1446d"

 [[package]]
 name = "unicode-width"
-version = "0.1.8"
+version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
+checksum = "3ed742d4ea2bd1176e236172c8429aaf54486e7ac098db29ffe6529e0ce50973"

 [[package]]
 name = "vec_map"
--- a/Cargo.toml
+++ b/Cargo.toml
@ -16,7 +16,7 @@ license = "MIT"
 name = "oxipng"
 repository = "https://github.com/shssoichiro/oxipng"
 build = "build.rs"
-version = "5.0.0"
+version = "5.0.1"

 [badges]
 travis-ci = { repository = "shssoichiro/oxipng", branch = "master" }
@ -34,7 +34,7 @@ byteorder = "^1.4.2"
 crc = "^2.0.0"
 itertools = "^0.10.0"
 zopfli = { version = "^0.4.0", optional = true }
-miniz_oxide = "0.4"
+miniz_oxide = "0.5"
 rgb = "0.8.25"
 indexmap = "1.6.1"
 libdeflater = { version = "0.7.1", optional = true }