Xdebug is a PHP extension with developing aids, a profiler, an interactive debugging, and a code coverage information gatherer.
- Homepage: https://xdebug.org/
- Changelog: https://xdebug.org/updates
- Latest stable version: 3.0.1, released on 2020-12-04 (supports PHP 7.2, 7.3, 7.4 and 8.0)
- Latest for 2.x branch: 2.9.8, released on 2020-09-28 (supports PHP 7.1, 7.2, 7.3, 7.4)