For this release I've refactored the code substantially, so you'll have to alter any code you had that used the previous version - it should be a lot nicer now though. Make sure you read the VSTGLEditor documentation to see what's changed. Major additions include a simple message-based timer, so you don't have to rely on the host's (generally rubbish, in my experience) idle() implementation for screen updates, and support for vertical sync and hardware antialiasing.
This version is also compatible with VST 2.4 (while remaining backward-compatible with VST 2.3).