MainStage 3.4.3 – What’s New

MainStage has had an update and for those wondering, here’s what’s new:


  • MainStage no longer hangs after adding a Preset Name mapping to a channel strip after several patches have been created in the Concert.


  • MainStage no longer exhibits stuck MIDI notes and then loses connection to the MIDI interface.
  • The Playback plug-in no longer unexpectedly jumps back to the beginning of the song in certain cases where playing MIDI in to MainStage causes a system overload.
  • There are no longer unexpected System Overloads immediately after loading a Concert or a patch.
  • MainStage no longer hangs when opening a Concert that contains multiple duplicated patches.
  • Performance is improved while switching between patches in Concerts that use a large number of Audio Unit plug-ins.


  • The Tab key indents text by two spaces as expected when editing in the Scripter plug-in.


  • Edited text in inspectors is now reliably updated immediately.
  • Tempo-based Audio Unit plug-ins now maintain sync when MainStage is synced to MIDI Clock.
  • The New Track sheet now shows all available buses for multi-output instruments.
  • Concerts created in MainStage 3.1 or older now open as expected.
  • Duplicating an alias of a patch no longer causes unexpected sound output.
  • The Metronome Division setting is now retained when opening a saved Concert.

Leave a Reply