Greetings all! chuck-1.3.1.1 (chimera) is available: http://chuck.cs.princeton.edu/ http://chuck.stanford.edu/ This version fixes a critical issue that was introduced in 1.3.0.0 where member function calls in loop conditionals, paired with having an Object reference in the body, can cause a crash. This is quite likely the source of the OSC-related crashes that quite a few people have reported recently. It actually wasn't an issue with OSC (though we did tighten a few things there too), but rather the common usage: // e is an Event in this example while( e.nextMsg() ) { /* do stuff... */ } So, this should now be fixed (we think)! This issue was a rather serious one (the code above is commonly found when working with OSC, MIDI, HID, and any time a member function is invoked in loop conditional). We highly recommend updating to the latest as soon as convenient! Thanks to everyone who reported issues and helped to track things down! If you'd like, please do give 1.3.1.1 a spin, and let us if you run into additional issues -- we'll do our best to get things fixed as soon as we can! Thank you and ChucK on! Best wishes, Spencer, Ge + on behalf of chuck team! 1.3.1.1 --- - (fixed) critical bug since 1.3 where member function calls in loop conditionals caused crashes when the loop body contained local Object's to be released; this directly affects using OSC, MIDI, HID, which commonly employ syntax like: 'while( e.nextMesg() ) { ... }'; -- this is most likely the cause of the OSC-related issues we've been seeing (thanks to Graham Coleman for tracking down and narrowingthe issue!) - (fixed) strengthened synchronization in OSC between internal listener thread and chuck VM code - (fixed) memory bug in OscRecv deallocation - (fixed) Machine.add( ... ) on windows now supports both '\\' and '/' in aboslute paths (previously only '\\'). (thanks to Graham Coleman for finding this!)