Appendix C. OpenGL Features and Versions
For more than two decades, OpenGL has been updated and enhanced, with each revision adding more features and functionality to the core specification. Although this book is about version 4.5 of OpenGL, many of the examples and topics covered here are applicable to earlier versions of the standard. When designing an OpenGL application that is intended to run on a broad range of hardware, it’s important to pick a baseline—a version of OpenGL that’s absolutely required for your application to run correctly. You can then choose additional functionality (perhaps from extensions or newer versions of OpenGL) that will enhance your application’s performance or features, but that aren’t strictly required.
The tables ...
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