With a song's recording added to your score, a switch at the top of the parts now plays the recording or the tab. While the recording plays, each part's volume knob turns that instrument in the recording.
In the tab editor, dragging the mouse across bars selects them whole, anywhere on the score, and a double-click selects one bar. Copy them, click a bar and paste: they go in from there, in order.
The recorded notes clean electric guitars played from since 1.14 are gone. They didn't sound good enough in the real player, so clean parts use the synthesised guitar again.
Each exercise's goal tempo can now be changed in the player, under Speed ramp, and it plays at the new tempo straight away. Pressing + at 100 % takes you there.
On a phone the tracks are now always in a row above the score, so you can switch to another instrument with one tap, whichever way you hold it. On its side, the score also gets far more of the screen.