I wrote this because you are all idiots.

Specifically, if you were involved in the OpenGL specification between 2003 and
today, you are an idiot.

Allow me to explain.

Let's say you have a well-specified system that is in wide use (a language, a
library API, whatever) and because of changes in some substrate (operating
systems, hardware, whatever) you find that you need to add a new way of doing
things to it.

The way you do this is, you add new features to the specification and you
clearly document the version in which those features become supported.

If there are old features that you would like to discourage the use of, then you
mark them as obsolete -- but you do not remove them because thou shalt not break
working code.

If you don't agree with that, then please, get out of the software industry
right now. Find another line of work. Please.

Your users have code that works. Maybe the new APIs would serve them better.
Maybe things would be so much more efficient if they updated their code to use
the new API. Or maybe it doesn't matter to them and they just want working code
to continue to be working code. At least until such a time as they need the new
features, or new efficiency. Remember the First Rule of Optimization: DON'T.