1. Propel3High performance data-mapper ORM with optional active-record traits for RAD and modern PHP 7.2+
5. Propel2Propel2 is an open-source high-performance Object-Relational Mapping (ORM) for modern PHP
6. PropelCurrent stable (and outdated and unmaintained) version of Propel - Please use v2 https://github.com/propelorm/Propel2 --