Version 1.5 is currently in beta, but should be released any day. The beta version is downloadable now and I've not run into any issues with it.
It contains new modes (now 12 in total):
Adamantium - mono input, medium attack, bright, airy
Titanium - mono input, soft attack, darker, big bass decay
Osmium - mono input, soft attack, super dark, resonant, long bass decay
Radium - parallel stereo, medium attack, bright
Lithium - soft attack, high modal density, dark