2.0.0-alpha3 - released 2020-08-03

Changelog

Breaking: Zip archives loaded by artifact repositories must now have a composer.json on top level, or a max of one folder on top level of the archive
Added --no-dev support to show and outdated commands to skip dev requirements
Added support for multiple --repository flags being passed into the create-project command, only useful in combination with --add-repository to persist them to composer.json
Added a new optional list API endpoint for v2-format Composer repositories, see UPGRADE for details
Fixed show -a command not listing anything
Fixed solver bug where it ended in a "Reached invalid decision id 0"
Fixed updates of git-installed packages on windows
Lots of minor bug fixes