MODX 3.0 cleaned up a significant number of old system settings and changed the default value (for new installations) of some as well.
@EVALbinding is no longer supported for TVs for security reasons #13865
manager_js_document_rootwhich were related to the old dynamic manager js minification #13859, #14868
editor_css_selectorshave been removed #14843. These settings may be in by TinyMCE or other third-party extras which may need to accommodate the setting not being available.)
manager_language#13786, replaced by automatic language detection and on-the-fly switching in the manager #14046. Learn more about the manager language in 3.0
server_protocolhave been removed #14877. Deprecated settings from MODX Evolution.
allowedFileTypeson the media source instead. #14252
cache_action_mapas the action map has been removed completely now that modAction is officially gone #14927
Changed default values
When the default value for a setting is changed, that only applies to fresh installations of MODX 3. Upgrades are unaffected (but you may want to consider making the same changes on an existing site).
enable_gravataris disabled on new installations #14215
manager_favicon_urldefaults to a new favicon, included in the MODX download, with the MODX logo. #14324
manager_time_formatuses 24hr format (
H:i) instead of am/pm (
g:i a) by default #14325