Websites have many reasons to notify their users of time-sensitive or high-priority events, even if the user does not currently have the site open.

Haaga Rhododendron Park, Helsinki, Finland (© Samuli Vainionpää/Getty Images)

WWDC22 is here, and with it, a host of announcements of new web technology shipping in WebKit on macOS, iOS and iPadOS, including advancements in privacy and security – plus new features for Safari, Web Inspector and Safari Web Extensions.

WebKit has had a big year, with over 162 new features and improvements shipping in WebKit browsers — including Safari 15.2, Safari 15.4, and Safari 15.5.