# Change Log
All notable changes to this project will be documented in this file.
This project adheres to [Semantic Versioning](http://semver.org/).
## Unreleased
## v0.1.22 (2021-01-27)
- Fix panic on jpeg without frames.
## v0.1.21 (2021-01-23)
- Fix incorrect order of MCUs in non-interleaved streams
- DCT Progressive images with incomplete coefficient blocks are now rendered
- Fix a panic on invalid dimensions
- Reduce allocations and runtime of decoding
- Rework multi-threading to run a thread per component
## v0.1.20 (2020-07-04)
- Fix decoding of some progressive images failing
- Several more performance improvements
- Add `PixelFormat::pixel_bytes` to determine the size of pixels
- Cleanup and clarification of the 8x8 idct implementation
- Updated fuzzing harnesses and helpers
## v0.1.19 (2020-04-27)
- Fix decoding returning too much image data
- Fix recognizing padding in marker segments
- Several decode performance improvements
- Remove use of deprecated `Error::description`
## v0.1.18 (2019-12-10)
- Fix two bugs causing panics introduced in 0.1.17.
## v0.1.17 (2019-12-08)
- Minimum supported rust version changed to 1.34
- Fix clippy::into_iter_on_array warning
- Ignore extraneous bytes after SOS
- Support IDCT Scaling
## v0.1.16 (2019-08-25)
- Minimum supported rust version changed to 1.28
- Allow zero length DHT segments
## v0.1.15 (2018-06-10)
- Added support for WebAssembly and asm.js (thanks @CryZe!)
- Bugfix for images with APP14 segments longer than 12 bytes.
## v0.1.14 (2018-02-15)
- Updated `rayon` to 1.0.
## v0.1.13 (2017-06-14)
- Updated `rayon` to 0.8.
## v0.1.12 (2017-04-07)
- Fixed an integer overflow in `derive_huffman_codes`.
- Updated `rayon` to 0.7.
## v0.1.11 (2017-01-09)
- Fixed an integer overflow.
- Updated `byteorder` to 1.0.
## v0.1.10 (2016-12-23)
- Updated `rayon` to 0.6
## v0.1.9 (2016-12-12)
- Added a generic integer upsampler, which brings support for some unusual subsampling schemes, e.g. 4:1:1 (thanks @iamrohit7!)
- Made rayon optional through the `rayon` cargo feature (thanks @jackpot51!)
## v0.1.8 (2016-11-05)
* Updated rayon to version 0.5.
## v0.1.7 (2016-10-04)
- Added `UnsupportedFeature::NonIntegerSubsamplingRatio` error
- Fixed a bug which could cause certain images to fail decoding
- Fixed decoding of JPEGs which has a final RST marker in their entropy-coded data
- Avoid allocating coefficients when calling `read_info()` on progressive JPEGs
## v0.1.6 (2016-07-12)
- Added support for 16-bit quantization tables (even though the JPEG spec explicitly
states "An 8-bit DCT-based process shall not use a 16-bit precision quantization table",
but since libjpeg allows it there is little choice...)
- Added support for decoding files with extraneous data (this violates the JPEG spec, but libjpeg allows it)
- Fixed panic when decoding files without SOF
- Fixed bug which caused files with certain APP marker segments to fail decoding
## v0.1.5 (2016-06-22)
- Removed `euclid` and `num-rational` dependencies
- Updated `rayon` to 0.4
## v0.1.4 (2016-04-20)
- Replaced `num` with `num-rational`
## v0.1.3 (2016-04-06)
- Updated `byteorder` to 0.5
## v0.1.2 (2016-03-08)
- Fixed a bug which was causing some progressive JPEGs to fail decoding
- Performance improvements
## v0.1.1 (2016-02-29)
- Performance improvements
## v0.1.0 (2016-02-13)
- Initial release