How to upgrade Modx CMS from MODX Revolution 2.7.3-pl to version 3.1.2 (rel. 2-Apr-2025)

The upgrade from MODX Revolution 2.7.3-pl to version 3.1.2 requires careful planning and a multi-step approach due to the significant changes between major versions. This comprehensive guide outlines the recommended upgrade path, prerequisites, and s...