This page may be slightly out of date: https://eventespresso.com/requirements/
We are updating it now, thanks for pointing that out.
We always recommend the current version of WP, for security reasons. We do our best to always be testing against the next version of WP, so that we can have problems ironed out before the official WP version drop. We do recommend at least php version 5.3 for EE4.
The support post ‘EE4 Compatible with 3.9.1? Where is specs page?’ is closed to new replies.
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Support forum for Event Espresso 3 and Event Espresso 4.