This version of QSWATPlus will run with QGIS versions 3.16 and later that use Python 3.7, 3.9 or 3.12.
It replaces QSWATPlus3_64, QSWATPlus3_9 and QSWATPlus3_12. If you have any of these installed you need to use the plugins menu to uncheck it and choose QSWATPlus instead.
SWAT+ Editor Version 3
All revision notes are found in the change log on Github linked below: