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 PNG      %k25u25%fgd5n!# Change Log

All notable changes to this project will be documented in this file.
This project adheres to [Semantic Versioning](http://semver.org/).

### [3.0.0] 2020-05-26

  * Break: Renamed `EmptyConstraint`, replace it with `MatchAllConstraint`
  * Break: Unlikely to affect anyone but strictly speaking a breaking change, `*.*` and such variants will not match all `dev-*` versions anymore, only `*` does
  * Break: ConstraintInterface is now considered internal/private and not meant to be implemented by third parties anymore
  * Added `Intervals` class to check if a constraint is a subsets of another one, and allow compacting complex MultiConstraints into simpler ones
  * Added `CompilingMatcher` class to speed up constraint matching against simple Constraint instances
  * Added `MatchAllConstraint` and `MatchNoneConstraint` which match everything and nothing
  * Added more advanced optimization of contiguous constraints inside MultiConstraint
  * Added tentative support for PHP 8
  * Fixed ConstraintInterface::matches to be commutative in all cases

### [2.0.0] 2020-04-21

  * Break: `dev-master`, `dev-trunk` and `dev-default` now normalize to `dev-master`, `dev-trunk` and `dev-default` instead of `9999999-dev` in 1.x
  * Break: Removed the deprecated `AbstractConstraint`
  * Added `getUpperBound` and `getLowerBound` to ConstraintInterface. They return `Composer\Semver\Constraint\Bound` instances
  * Added `MultiConstraint::create` to create the most-optimal form of ConstraintInterface from an array of constraint strings

### [1.5.1] 2020-01-13

  * Fixed: Parsing of aliased version was not validating the alias to be a valid version

### [1.5.0] 2019-03-19

  * Added: some support for date versions (e.g. 201903) in `~` operator
  * Fixed: support for stabilities in `~` operator was inconsistent

### [1.4.2] 2016-08-30

  * Fixed: collapsing of complex constraints lead to buggy constraints

### [1.4.1] 2016-06-02

  * Changed: branch-like requirements no longer strip build metadata - [composer/semver#38](https://github.com/composer/semver/pull/38).

### [1.4.0] 2016-03-30

  * Added: getters on MultiConstraint - [composer/semver#35](https://github.com/composer/semver/pull/35).

### [1.3.0] 2016-02-25

  * Fixed: stability parsing - [composer/composer#1234](https://github.com/composer/composer/issues/4889).
  * Changed: collapse contiguous constraints when possible.

### [1.2.0] 2015-11-10

  * Changed: allow multiple numerical identifiers in 'pre-release' version part.
  * Changed: add more 'v' prefix support.

### [1.1.0] 2015-11-03

  * Changed: dropped redundant `test` namespace.
  * Changed: minor adjustment in datetime parsing normalization.
  * Changed: `ConstraintInterface` relaxed, setPrettyString is not required anymore.
  * Changed: `AbstractConstraint` marked deprecated, will be removed in 2.0.
  * Changed: `Constraint` is now extensible.

### [1.0.0] 2015-09-21

  * Break: `VersionConstraint` renamed to `Constraint`.
  * Break: `SpecificConstraint` renamed to `AbstractConstraint`.
  * Break: `LinkConstraintInterface` renamed to `ConstraintInterface`.
  * Break: `VersionParser::parseNameVersionPairs` was removed.
  * Changed: `VersionParser::parseConstraints` allows (but ignores) build metadata now.
  * Changed: `VersionParser::parseConstraints` allows (but ignores) prefixing numeric versions with a 'v' now.
  * Changed: Fixed namespace(s) of test files.
  * Changed: `Comparator::compare` no longer throws `InvalidArgumentException`.
  * Changed: `Constraint` now throws `InvalidArgumentException`.

### [0.1.0] 2015-07-23

  * Added: `Composer\Semver\Comparator`, various methods to compare versions.
  * Added: various documents such as README.md, LICENSE, etc.
  * Added: configuration files for Git, Travis, php-cs-fixer, phpunit.
  * Break: the following namespaces were renamed:
    - Namespace: `Composer\Package\Version` -> `Composer\Semver`
    - Namespace: `Composer\Package\LinkConstraint` -> `Composer\Semver\Constraint`
    - Namespace: `Composer\Test\Package\Version` -> `Composer\Test\Semver`
    - Namespace: `Composer\Test\Package\LinkConstraint` -> `Composer\Test\Semver\Constraint`
  * Changed: code style using php-cs-fixer.

[2.0.0]: https://github.com/composer/semver/compare/1.5.1...2.0.0
[1.5.1]: https://github.com/composer/semver/compare/1.5.0...1.5.1
[1.5.0]: https://github.com/composer/semver/compare/1.4.2...1.5.0
[1.4.2]: https://github.com/composer/semver/compare/1.4.1...1.4.2
[1.4.1]: https://github.com/composer/semver/compare/1.4.0...1.4.1
[1.4.0]: https://github.com/composer/semver/compare/1.3.0...1.4.0
[1.3.0]: https://github.com/composer/semver/compare/1.2.0...1.3.0
[1.2.0]: https://github.com/composer/semver/compare/1.1.0...1.2.0
[1.1.0]: https://github.com/composer/semver/compare/1.0.0...1.1.0
[1.0.0]: https://github.com/composer/semver/compare/0.1.0...1.0.0
[0.1.0]: https://github.com/composer/semver/compare/5e0b9a4da...0.1.0