Renoise has been updated to v1.5.1.

Changes:

• OSX: Improved compatibility for OS X Tiger.
• OSX: The OS X version will now also (the windows version already does) save a crash-backup when something bad happens and Renoise unexpectedly quits.
• Major GUI performance improvements, especially on OS X.
• Some minor audio engine performance improvements.
• Ghost Notes: Renoise now supports "ghost notes", a feature you might know from FT II or other trackers: When using an instrument-envelope for an instrument, you can now avoid that the envelopes are re-triggered by deleting the instrument no. in the pattern:
  
  C-4 01 .. 0000 -> this will trigger instr. 01 --- .. .. 0000.
  D-4 .. .. 0000 -> this also, but the envelopes will not be re-triggered.
  
• Fixed a crash when auto-capture instrument was enabled and Instruments > 128 where used in the current pattern.
• Fixed possibly wrong pitch-rates when changing the sample rate for the pattern effects 01 02 05 (pitch slide and glide).
• Various other tiny fixes and improvements.