# ChangeLog All notable changes are documented in this file using the [Keep a CHANGELOG](http://keepachangelog.com/) principles. ## [2.1.1] - 2019-02-20 ### Changed * Improved formatting of memory consumption for `resourceUsage()` ## [2.1.0] - 2019-02-20 ### Changed * Improved formatting of memory consumption for `resourceUsage()` ## [2.0.0] - 2018-02-01 ### Changed * This component now uses namespaces ### Removed * This component is no longer supported on PHP 5.3, PHP 5.4, PHP 5.5, PHP 5.6, and PHP 7.0 [2.1.1]: https://github.com/sebastianbergmann/diff/compare/2.1.0...2.1.1 [2.1.0]: https://github.com/sebastianbergmann/diff/compare/2.0.0...2.1.0 [2.0.0]: https://github.com/sebastianbergmann/diff/compare/1.0.9...2.0.0