
Funny old world. Sonar was replaced by the free Bandlab DAW several years ago. But this is now to be phased out, to be replaced by two new DAWs - Cakewalk Sonar - https://www.cakewalk.com/sonar and Cakewalk Next - https://www.cakewalk.com/next . Apparently Sonar will be backwards compatible with old Sonar projects and will be an updated fully-featured Windows-only DAW, Next is an easy to use cross-platform thing.
All this is "coming soon". Both will be paid products, but no word yet on pricing.