I wouldn't recommend any book (or other source material) focussing on 4.3 right now precisely because AMD don't have full GL 4.3 drivers available yet (neither do Intel)
Actually, AMD have recently added support for 4.3 http://support.amd.com/us/kbarticles/Pages/AMDCatalyst13-4WINReleaseNotes.aspx
Thanks, but just a quick question (probably a stupid one), how do you learn from these tutorials/books (for example, arcsynthesis) if they don't give you a small snippet of code and explain it? I'm looking at arcsynthesis and basically he just wants you to read the whole source code, which also has a framework in place, which I then need to scavenge for and read about how his framework works.
I'm sort of used to tutorials teaching things step by step and explaining snippets of code (coming from Flash). Also, I looked at the superbible and it teaches you their opengl wrapper instead of opengl until later into the chapters.
I haven't tried the downloaded version, but the online version of arcsynthesis does have small snippets that are fully explained. Atleast, I did find it easy enough to understand, even when using it with OpenTK.