jQuery 4.0, now in a beta state, drops assistance for a variety of older web browsers and eliminates previously deprecated APIs. The new release also introduces support for Trusted Types.With jQuery
4.0, assistance is dropped for Web Explorer versions 10 and older, Edge Tradition, Firefox versions before release 65, and iOS variations before release 11. Plans call for removal of assistance for Web Explorer 11 in jQuery 5.0. Also with jQuery 4.0, native habits is no longer overridden. That implies all web browsers other than Web Explorer will follow the existing Internet Consortium (W3C) specification.APIs gotten rid of in jQuery 4.0