Re: Recentish C-s M-y change

[Juri Linkov]

> This has been discussed many times, and the most promising solution is
> to add a single variable that will define whether the user prohibits
> changing the definitions of traditional keys.  When its value is nil,
> then with a new release the user gets new keybindings that are more
> logical and consistent with other keybindings and new functionality.
> However, when you set it to t, then you get all old keybindings untouched.

Or better to add a new theme that would restore the old values:

  (deftheme back-to-emacs-27)

  (define-key isearch-mode-map "\M-y" 'isearch-yank-kill)
  (setq read-char-choice-use-read-key t)
  (setq y-or-n-p-use-read-key t)
  ...

Then if you don't want to revert all changes, it's easy
to pick some of them and copy to the init file.