2.1.2 - released 2021-06-07

Changelog

Added --dev to dump-autoload command to allow force-dumping dev autoload rules even if dev requirements are not present (#9946)
Fixed --no-scripts disabling events for plugins too instead of only disabling script handlers, using --no-plugins is the way to disable plugins (#9942)
Fixed handling of deletions during package installs on some filesystems (#9945, #9947)
Fixed undefined array access when using "@php " in a script handler (#9943)
Fixed usage of InstalledVersions when loaded from composer/composer installed as a dependency and runtime Composer is v1 (#9937)