Faster and more flexible - OpenSubdiv 3.0 is here!
OpenSubdiv 3.0 represents a landmark release, with profound changes to the core algorithms, simplified APIs, and streamlined GPU execution. Providing faster, more efficient, and more flexible subdivision code remains our principal goal. To achieve this, OpenSubdiv 3.0 introduces many improvements that constitute a fairly radical departure from previous versions.
I checked with developer Lukas Toenne if this means 3.0 will be part of Blender 2.76 (it was mentioned in his week's developer meeting notes). He says:
I only updated Sergey's branch recently and looked into the API, but i'm probably not going to be working on it. I don't know about concrete plans. Switching to 3.0 is on the agenda, but that's about all I know.
So, it looks like we'll have to wait a little longer.