Change record status: 
Project: 
Introduced in branch: 
10.3.x
Introduced in version: 
10.3.0
Description: 

jQuery Form is a low-level JavaScript library used internally to handle sending data back to Drupal over Ajax.

The library is abandoned upstream with no commits for four years, and does not work with jQuery 4. It has been forked into core so that we can modify it to allow use of jQuery 4 in Drupal 11 and continue maintaining it for the time being, with the eventual aim of removing it in Drupal 12.

It is tagged @internal and should not be used by contributed or custom modules directly; they can still rely on the Ajax subsystem as before and no changes will be required as a result.

Impacts: 
Module developers