Description

In 4.0 I plan to take a stab at #2795. I think, though, we should try to deprecate auto-adding px earlier than that. This may not require changes in jQuery itself but on the API pages & in Migrate but I'd like to discuss the approach before doing the work.

One question - do we want to deprecate auto-adding px altogether or just for the properties we will stop auto-adding for? (i.e. not some most common ones like width) Deprecating all of that would go towards the ideal goal but might trigger warnings on the vast majority of projects so perhaps it'd be less invasive to not do it on the ones we will auto-fix.

Link to test case

N/A