Upgrading jQuery to version 3.3.1

I just upgraded jQuery from version 2.2.0 (2 years old) to 3.3.1.

Officially this drops support in jQuery for IE 8 and below. In practice … well … jQuery have been slow nuking out old code.

There is an extensive guide about changes from the 2x line to the 3x line at:


We are not the heaviest jQuery consumers so I am not sure how many of these things impact us.

If you notice anything weird and new on the client side, it may relate to this upgrade. Let us know.