I have SPBP 5.15 and Joomla update is saying that it's not compatible with J 4.4.0. Here's the output...
Would welcome your comments before I update.
Extensions Pre-Update Check
Update Information Unavailable
Joomla cannot detect the extension's compatibility with the target version of Joomla.
Extension Name Extension Type
System - SP PageBuilder Plugin
System - SP Page Builder Pro Updater Plugin
Search - SP Page Builder Plugin
Smart Search - SP Page Builder Plugin
Content - SP Page Builder Plugin
SP Simple Portfolio - SP Page Builder Plugin
K2 - SP Page Builder Plugin
SP Page Builder Module