[White Tie]

From here : http://www.kvraudio.com/forum/viewtopic.php?p=2913127

We've looked at VST3, and are not planning on supporting it in REAPER (at least unless a ton of third party plug-ins support and require VST3).

We have our VST2.4 extensions listed here: http://reaper.fm/sdk/vst/

And we also are excited about helping define a new, open plug-in API. Much of what Angus has written makes a lot of sense to us.

The biggest thing, though, I get excited about, is having a plug-in API that is compatible with open source licenses. The fact that VST effectively prevents LGPL or even BSD licensed plug-ins is completely ridiculous...

Justin Frankel
Cockos Incorporated / REAPER
www.reaper.fm