2.0.0-beta1 release

Add installedPatches property to fix PHP 8.2 deprecation 1.x version (#…

…422)

Add a method to determine if a package is patched.

Merge pull request #366 from Seldaek/fix-composer2.1

Add support for Promises being returned by uninstall in Composer 2.1

Merge pull request #330 from hussainweb/patch-1

Replace getJobType with an instanceof check

Merge pull request #283 from Berdir/retry-download-1.x

Retry failed downloads once

Merge pull request #240 from RaphTbm/1.x--issue-230-add-patch-level-d…

…ocumentation

Fix #230: Document project patchLevel in the Readme

Merge pull request #189 from jhedstrom/patch-level-1-x

1.x backport: Allows patch-level to be specified per-project.

Merge pull request #175 from danepowell/issue-174

Fixes #174: Compatibility with older Git versions.