<ul data-eligibleForWebStory="true">Apple's AI upgrade for Siri might not debut until iOS 26.4 in March 2026.The new Siri experience faced delays and was initially intended for iOS 18.Apple anticipates rolling out the upgraded Siri in the coming year, as confirmed at WWDC 2025.Bloomberg's report provides a timeline for the expected Siri upgrade launch.The Siri upgrade aims to be more natural, contextually relevant, and personal.It will allow Siri to handle multiple requests in a conversation and switch between text and voice.The current Siri update only includes a new design with a glowing light around the iPhone's display.Apple Intelligence will enable Siri to perform new actions in various apps.The Siri upgrade delay hints that the new features may not be available until 2026.Apple's upcoming Siri promises better user interaction but faces extended development timelines.