JSonar supports versions 4, 5, 6 and 7 of both Cakewalk Sonar Studio and Producer editions. Usually, the higher versions have better support since they are under active development. JSonar also reportedly supports Cakewalk Sonar Light Edition (aka Sonar LE) but more evidence would be appreciated to warrant this claim.

As of time of this writing:

• JSonar4 and JSonar5 are no longer supported.
• JSonar6, JSonar7 and JSonar8 are under active development.