By catch on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
10.3.x
Introduced in version: 
10.3.0
Issue links: 
https://www.drupal.org/node/3278625
Description: 

The tabbable.jquery.shim library which provided backwards compatibility for the :tabbable selector from jQuery is deprecated in 10.3.0 and will be removed in 11.0.0

The :tabbable selector was originally deprecated in Drupal 9.2.0, see the original change record here: https://www.drupal.org/node/3183730

Impacts: 
Module developers
Themers