Following signs of new Side Button functionality in the iOS 26.2 beta 3 update, Apple developer documentation has confirmed that assigning a third-party voice assistant to the Side Button will be a feature available to iPhone users in Japan.
Apple provided developers with the third beta of an upcoming iOS 26.2 update, and there are still new features that are being added with each beta that we get. We've rounded up all of the changes that Apple made in beta 3.
