Rewire with sessions with tempo changes

This feature is definitely coming! Perhaps not in the next release, but sooner than later.

Thank you, You guys are the best, Please don't change, Thank you :)

In the latest prerelease version of Reaper (3.46 pre2), Reaper when running as ReWire slave will automatically build a tempo map as the master plays back. It would be excellent if anyone who is interested in this feature would be willing to try it out.