# OpenJPEG NEWS
-More details in the [Changelog](https://github.com/uclouvain/openjpeg/blob/master/CHANGELOG.md)
+More details in the [CHANGELOG](https://github.com/uclouvain/openjpeg/blob/master/CHANGELOG.md)
-## OpenJPEG 2.2.0
+## OpenJPEG 2.5.1 (Feb 2024)
+
+No API/ABI break compared to v2.5.0
+
+* CMake: drop support for cmake < 3.5
+* Several bugfixes, including [\#1509](https://github.com/uclouvain/openjpeg/pull/1509) for CVE-2021-3575
+* Significant speed-up rate allocation by rate/distoratio ratio [\#1440](https://github.com/uclouvain/openjpeg/pull/1440)
+
+## OpenJPEG 2.5.0 (May 2022)
+
+No API/ABI break compared to v2.4.0, but additional symbols for subset of components decoding (hence the MINOR version bump).
+
+* Encoder: add support for generation of TLM markers [\#1359](https://github.com/uclouvain/openjpeg/pull/1359)
+* Decoder: add support for high throughput \(HTJ2K\) decoding. [\#1381](https://github.com/uclouvain/openjpeg/pull/1381)
+* Decoder: add support for partial bitstream decoding [\#1407](https://github.com/uclouvain/openjpeg/pull/1407)
+* Bug fixes (including security fixes)
+
+## OpenJPEG 2.4.0 (December 2020)
+
+No API/ABI break compared to v2.3.1, but additional symbols for subset of components decoding (hence the MINOR version bump).
+
+* Encoder: add support for multithreading [\#1248](https://github.com/uclouvain/openjpeg/pull/1248)
+* Encoder: add support for generation of PLT markers [\#1246](https://github.com/uclouvain/openjpeg/pull/1246)
+* Encoder: single-threaded performance improvements in forward DWT for 5-3 and 9-7 (and other improvements) [\#1253](https://github.com/uclouvain/openjpeg/pull/1253)
+* Encoder: support IMF profiles [\#1235](https://github.com/uclouvain/openjpeg/pull/1235)
+* Many bug fixes (including security fixes)
+
+## OpenJPEG 2.3.1 (April 2019)
+
+No API/ABI break compared to v2.3.0
+
+* Many bug fixes (including security fixes)
+
+## OpenJPEG 2.3.0 (October 2017)
+
+No API/ABI break compared to v2.2.0 but additional symbols for subset of components decoding (hence the MINOR version bump).
+
+* Sub-tile decoding: when setting a window of interest through the API function opj_set_decode_area(), only codeblocks that intersect this window are now decoded (i.e. MCT, IDWT, and entropy decoding are only done on the window of interest). Moreover, memory allocation now depends on the size of the window of interest (instead of the full tile size).
+[\#990](https://github.com/uclouvain/openjpeg/pull/990) [\#1001](https://github.com/uclouvain/openjpeg/pull/1001) [\#1010](https://github.com/uclouvain/openjpeg/pull/1010)
+* Ability to decode only a subset of components. This adds the following function `opj_set_decoded_components(opj_codec_t p_codec, OPJ_UINT32 numcomps, const OPJ_UINT32 comps_indices, OPJ_BOOL apply_color_transforms)` and equivalent `opj_decompress -c compno[,compno]*`
+option.
+[\#1022](https://github.com/uclouvain/openjpeg/pull/1022)
+* Many bug fixes (including security fixes)
+
+## OpenJPEG 2.2.0 (August 2017)
No API/ABI break compared to v2.1.2 but additional symbols for multithreading support (hence the MINOR version bump).
* Codebase reformatting (with astyle) and scripts to automatically check that new commits comply with formatting guidelines [\#919](https://github.com/uclouvain/openjpeg/pull/919)
* Register OpenJPEG at Google OSS Fuzz initiative, so as to automatically have OpenJPEG tested against Google fuzzer [\#965](https://github.com/uclouvain/openjpeg/issues/965)
-## OpenJPEG 2.1.2
+## OpenJPEG 2.1.2 (September 2016)
* Bug fixes (including security fixes)
* No API/ABI break compared to v2.1.1
-## OpenJPEG 2.1.1
+## OpenJPEG 2.1.1 (July 2016)
* Huge amount of critical bugfixes
* Speed improvements
* No API/ABI break compared to v2.1
-## OpenJPEG 2.1.0
+## OpenJPEG 2.1.0 (April 2014)
### New Features
projects / openjpeg.git / blobdiff