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# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
This project uses a custom versioning scheme (and not [Semantic Versioning](https://semver.org/spec/v2.0.0.html)).
## [4.13]
* API change: due to Issue #159: the author of the algorithm is Eugene Myers, therefore classes and methods were renamed accordingly
### Changed
## [4.11]
### Changed
* bugfixing new UnifiedDiff reader
* header for each file
* skip empty lines
* introduction of Meyers Diff Algorithm with Linear Space improvment (until matured this will not be the default diff algorithm)
* introduction of DiffAlgorithmFactory to set the default diff algorithm DiffUtils use (`DiffUtils.withDefaultDiffAlgorithmFactory(MeyersDiffWithLinearSpace.factory());`)
## [4.10]
### Changed
* bugfixing on new UnifiedDiff reader / writer for multifile usage
* bugfix for wrong DiffRow type while transforming from a patch that removed a line in one changeset
* introduced change position into UnifiedDiff reader
* introduced first version of conflict output possibility (like GIT merge conflict)
* moved verification to `AbstractDelta`
* introduced `ConflictOutput` to `Patch` to add optional behaviour to patch conflicts
## [4.9]
### Changed
* make patch serializable
## [4.8]
### Changed
* some bugfixes regarding unified diff writer
* UnifiedDiffReader improved for **deleted file mode** and better timestamp recognition
* UnifiedDiffReader improved for **new file mode** and better timestamp recognition
## [4.7]
### Changed
* minor bug fixes
* optional include equal parts of original and revised data
* **API** change: removed DiffException completely
* added possibility to **process diffs** to for instance show whitespace characters
## [4.4] – 2019-11-06
### Changed
* java-diff-utils is now a multi module project. The main project java-diff-utils now comes without any dependencies.
* started reimplementation of unified diff tools
* Exchange `0 += 1` for `0 = 1` in UnifiedDiffUtils
* preview of new Unified Diff Reader / Writer. This is not yet feature complete but passes the tests of the old version.
* feel free to issue some change requests for the api.
* introduces lineNormalizer extension point to e.g. change html code encoding. (issue #41)
## [4.0] – 2019-01-09
### Changed
* moved to organisation **java-diff-utils**
* changed groupid to **io.github.java-diff-utils** and artifact id to **java-diff-utils**
## [3.0] – 2018-10-18
### Added
* Introduced a process listener to diff algorithms. For long running
diffs one could implement some progress information.
* automatic module name for JDK 9 and higher usage
### Changed
* changed generation of inline diffes, if there are different linefeeds within one diff, then these are excluded from the diff block.
### Removed
* Due to licensing issues Delta.java and DiffAlgorithm.java were removed.
## [2.2] – 2017-11-09
### Added
* released at maven central
* included checkstyle source code conventions
* allow configurable splitting of lines to define the blocks to compare (words, characters, phrases).
### Changed
* groupid changed to **com.github.wumpz**, due to maven central releasing
## [2.0] – 2017-08-14
### Added
* support for inline merge
* integrated JGit (Eclipse Licensed) to provide HistogramDiff to gain speed for large datasets
### Changed
* switch to maven and removed other artifacts
* changed groupid to **com.github.java-diff-utils** due to different forks at github
* updated maven plugins
* JDK 1.8 compatibility, sorry if you have to stick with older versions
* restructured packages heavily
* changed API
* changed Algorithm to provide only cursor positions
### Removed
* removed all kinds of helper classes in favour of new JDK 8 function classes like Predicate
## 1.2
### Added
* JDK 1.5 compatibility
* Ant build script
* Generate output in unified diff format (thanks for Bill James)
[Unreleased]: https://github.com/java-diff-utils/java-diff-utils/compare/java-diff-utils-parent-4.5...HEAD
[4.5]: https://github.com/java-diff-utils/java-diff-utils/compare/java-diff-utils-parent-4.4...java-diff-utils-parent-4.5
[4.4]: https://github.com/java-diff-utils/java-diff-utils/compare/java-diff-utils-4.0...java-diff-utils-parent-4.4
[4.0]: https://github.com/java-diff-utils/java-diff-utils/compare/diffutils-3.0...java-diff-utils-4.0
[3.0]: https://github.com/java-diff-utils/java-diff-utils/compare/diffutils-2.2...diffutils-3.0
[2.2]: https://github.com/java-diff-utils/java-diff-utils/compare/diffutils-2.0...diffutils-2.2