Links that list Org-drill being part of org/contrib:
https://orgmode.org/worg/org-contrib/org-drill.html
https://orgmode.org/worg/org-contrib/

Sorry for the mishap, I also hope this is the right place to send this kind of information. I'm an Emacs greenhorn and just thought this should be updated to save people headaches.

Here's the commit:
https://code.orgmode.org/bzg/org-mode/commit/2c8e8b4a186473729b983318c2befc1732127165

On Sat, Aug 22, 2020 at 10:14 PM INAKI CORNEJO DE LA MORA <190300389@ucaribe.edu.mx> wrote:
https://orgmode.org/worg/org-contrib/org-drill.html