Currently, we are moving MM 2.1 back to Github - as an overview for the progress we created a ticket to Github.
The requirements for MM 2.1 were slightly changed compared to the Contao-LTS: PHP 7.1 is now required as the smallest version.
Meanwhile, all known bugs are fixed to run MM 2.1 with current MySQL/MariaDB versions, that have strict mode enabled. As further features "under the hood" all "deprecation notice" were fixed and a new tool was created which checks and corrects all source files for correct header information like authors, descriptions, years, licenses and much more (thanks to Christian Schiffler for the "Autofixer").
As a further adjustment, there is a changeover at MCW to the new bundle version - thanks to Stefan Heimes, who brings new life into the MCW.
Even though the fundrasing for MM 2.1 has been completed, the MM-Team would very much appreciate a donation of up to 10% for new projects. As a guideline a donation between 100 and 500€ should fit (inquiries and invoices: e-mail to firstname.lastname@example.org).
This is the only way to ensure a continuous development and bugfixing of MM 2.1!
Donations for support and bugfixing MetaModels: