Don't consider putting 3.1.0 on cdn? Now the latest 2.6.4 version on cdn, there is a problem with the latest 3.4.1 version of jquery | jquery version | validation-engine version | status | | -------------- | ------------------------- | ------------ | | >= 3.3.0 | 2.6.4 | has problems | | <= 3.2.1 | 2.6.4 | good |