Apple’s highly anticipated Siri overhaul has encountered another setback, with reports indicating that the major AI upgrade will now roll out in stages rather than debuting as a single headline feature in iOS 26.4.
According to Bloomberg’s Mark Gurman, internal testing over recent weeks revealed fresh performance and reliability issues. While Apple previously positioned the redesigned Siri as a major leap forward in artificial intelligence, the company now appears to be adjusting its launch timeline.
Gradual Rollout Replaces Single Major Launch
Apple initially targeted iOS 26.4, expected in March, for the debut of its revamped Siri experience. However, sources familiar with development now suggest that features will be distributed across multiple updates.
The revised timeline may look like this:
- Some enhancements arriving in iOS 26.4
- Additional features potentially moving to iOS 26.5 in May
- More advanced capabilities possibly delayed until iOS 27 in September
This staggered approach suggests Apple is prioritizing stability over speed, especially for features involving deeper system integration and contextual awareness.
What’s Causing the Delay?
Internal testing reportedly uncovered several challenges:
- Inconsistent request processing
- Slower-than-expected response times
- Reliability issues with deeper app integration
- Occasional interruptions when users speak quickly
- Fallback to ChatGPT integration in certain scenarios
These issues appear to affect some of the assistant’s most ambitious new features, particularly those involving contextual awareness and cross-app task execution.
When Apple first previewed the redesigned Siri in June 2024, it described a more personal and intelligent assistant capable of understanding on-screen content, accessing relevant user data responsibly, and performing complex actions across apps. Delivering those features consistently at scale appears to be the primary hurdle.
New Architecture and AI Partnerships
The revamped Siri reportedly runs on a new internal architecture codenamed “Linwood,” powered by Apple Foundation Models. Apple has also confirmed that Google’s Gemini models will support certain AI capabilities within the assistant.
Despite working with external AI models, Apple continues to emphasize its privacy-first approach. The company has maintained that user data processing will adhere to its strict on-device and secure cloud standards.
Internal builds reportedly include a preview toggle for certain personal data features, suggesting that Apple may initially label parts of the upgrade as early or experimental.
What This Means for Users
While the delay may disappoint users expecting a fully transformed Siri this spring, the phased rollout could ultimately benefit stability and reliability. AI-driven assistants that integrate deeply with user data and third-party apps require careful refinement, especially at Apple’s scale.
The broader implication is that Apple’s AI strategy is evolving more cautiously compared to competitors that have aggressively pushed generative AI updates. By spacing out releases, Apple may be aiming to reduce bugs, prevent privacy concerns, and ensure consistent performance before full deployment.
Apple maintains that the upgraded Siri will launch within the year, though it now appears the complete vision may not be realized until late 2026.
Frequently Asked Questions
When will the new Siri AI features launch?
Some features are expected in iOS 26.4, with additional upgrades potentially arriving in iOS 26.5 and iOS 27 later this year.
Why is Apple delaying the Siri upgrade?
Internal testing revealed reliability issues, slower response times, and inconsistent performance in advanced features like contextual awareness and app integration.
Will Siri use external AI models?
Yes. Apple has confirmed that Google’s Gemini models will support parts of Siri, alongside Apple’s own Foundation Models, while maintaining a privacy-focused approach.
