MM Installation for 2.1 and Older
Installing MM 2.1 for Contao 4.4
The installation requirements for MetaModels 2.1 are:
a running Contao 4.4.x (LTS) and
PHP 7.1/7.2
MySQL from 5.5.5 (InnoDB), MariaDB (without strict mode)
Higher versions of Contao and/or PHP are possible but not officially supported.
Installing MetaModels 2.0 for Contao 3.5
Installing MetaModels 2.0 for Contao 3 requires a Contao LTS version, i.e. Contao 3.5.x — as well as the system requirements equivalent to the Contao LTS.
Since January 2018, MM 2.0 requires at least PHP 5.6.
When upgrading from a “nightly build”, it can happen that two tables from the MM Core are missing and cannot be created by the Contao migration. If this is the case, please create the following two tables manually:
tl_metamodel_dcasetting_condition.php
tl_metamodel_searchable_pages.php
Notes and Instructions for Even Older Contao and MM Versions
Updating File Fields When Migrating from MetaModels 1.x to 2.x