Apple is closing in on the Siri reboot it teased at WWDC in June 2024, and the rollout appears tied to iOS 26.4. Apple has been planning to show the upgraded assistant in the second half of February, with iOS 26.4 expected to enter beta testing next month and ship publicly in March or early April, according to Bloomberg.
The upgrade is supposed to move Siri past simple voice commands and generic answers. The assistant should be able to draw on personal data and what’s on your screen to complete tasks, which is the kind of everyday help Apple has promised for years.
What’s still missing is the practical fine print. Apple hasn’t clearly spelled out device eligibility, regional availability, or the exact boundaries of what Siri can access when it starts working with personal context.
A late February reality check
Apple’s February demos are the first real pressure test. Whether it’s a big event or a tightly controlled briefing, possibly at Apple’s New York media loft, the point is the same, show the assistant doing repeatable work.
That matters because context features can look great in a single scripted flow. They only earn trust when the assistant can reliably pick up what you mean, connect it to what you’re viewing, and finish the job without detours.
Gemini is the accelerant
To get those capabilities into iOS 26.4 on this schedule, Apple reportedly needed Google’s Gemini. Internally, Apple has labeled the system Apple Foundation Models version 10, which helps it read as a homegrown leap even with outside technology involved.
The underlying model is said to be roughly 1.2 trillion parameters and hosted on Apple’s Private Cloud Compute servers. That setup suggests Apple is leaning on cloud scale for the hardest requests, which can speed progress but also raises questions about responsiveness, coverage, and how the experience holds up across regions.
What to watch when beta arrives
Once the iOS 26.4 beta lands, the tell won’t be marketing language. It’ll be whether the assistant can take action with personal context, not just recognize it, and whether it keeps working after the tenth try.
Pay attention to how Apple explains privacy controls, what data stays on device versus in Private Cloud Compute, and which iPhone models get the full feature set. If Apple answers those clearly in February and the beta backs it up, the spring update could be the most meaningful Siri change in a decade.