How do developers create and test apps to work with OpenGL 4.x when their OS and drivers don't support it?I'd like that, too, but it's kind of a chicken-and-the-egg problem. Why should Apple make drivers for it if there aren't any apps for it? And why develop apps for it if there's no support in the OS? Hopefully someone puts an end to it & develops something w/ OpenGL 4.x.
The OS needs the OpenGL frameworks first. Even as a developer only beta with known rough edges. Same as Snow Leopard needed to add Grand Central Dispatch before developers could develop using it, or LLVM support in Xcode, etc...