Re: How to find when a function/var has been added

[Stefan Monnier]

> What is the fastest way to find out since when a function/var is available
> in Emacs? Only through NEWS?

I know this is not the answer you're looking for, but back when I was
writing Elisp code that was not part of Emacs, I used the following two
strategies:
1- memory: this is really fast when it works, but obviously that doesn't
   always work so well.
2- use the function(ality) and let your users report when it doesn't
   work in Emacs-NN.MM.  This has the advantage of being lazy, and
   letting you learn indirectly which Emacs versions you need to pay
   attention to.


        Stefan