Upgrade GuideUpgrade to 3.1.xVersion: QB90On this pageUpgrade to 3.1.x Upgrade procedures from 3.1.x from 3.0.x from 2.1.x from 2.0.x from 1.x from Luntbuild Incompatibilities with previous versions Custom plugins created for 3.0.x or 2.x versions need to be re-compiled and re-exported.