Apple Shifts Major Siri AI Features to iOS 26.5 and iOS 27

Apple’s long-awaited Siri overhaul is taking more time than planned. According to Mark Gurman, the company has pushed back parts of its biggest generative AI upgrade, splitting features between iOS 26.5 and iOS 27 instead of delivering everything in the March release.

The move suggests Apple is prioritizing stability and privacy—even if it means a slower rollout.

What’s Being Delayed

The holdup affects some of the most ambitious Siri upgrades Apple previewed at WWDC 2024, including:

• Deeper personal context awareness
• Ability to interact with on-screen content
• More advanced generative AI capabilities

Apple had internally targeted a spring debut with iOS 26.4. Now, portions are expected to land in iOS 26.5 (May), with others potentially slipping to iOS 27 (September).

If the timeline holds, it could mean more than two years between Apple’s initial Siri vision announcement and full delivery.

Google Partnership Playing a Role

Apple is increasingly leaning on its partnership with Google to power parts of the new experience.

Under the plan:

• Gemini models will handle some generative tasks
• Apple continues rebuilding pieces of its own AI stack
• Privacy protections remain a core requirement

Publicly, Apple continues to emphasize that personalized AI features must protect user data, even if that adds engineering complexity and slows development.

iOS 27 Focus: Stability Over Flash

While the AI work continues, iOS 27 (internally codenamed Rave) is shaping up to be a more foundational release.

Gurman reports engineers are:

• Removing legacy code
• Rewriting aging system components
• Improving overall stability
• Optimizing power efficiency

In other words, less visual flash—more under-the-hood cleanup.

Battery Life Is a Major Priority

One of the biggest goals for iOS 27 is better battery life on existing devices.

Rather than relying solely on new hardware, Apple is reportedly trying to:

• Reduce background inefficiencies
• Streamline system processes
• Improve runtime through software optimization

If successful, users could see meaningful endurance gains without upgrading their devices.

Why the Timing Matters

The software cleanup comes as Apple prepares for several major hardware shifts later in the year, including:

• The first foldable iPhone
• Potential touchscreen Macs
• Expanded Apple Intelligence features

Stabilizing the OS now could help ensure those new device categories launch on a stronger software foundation.

The Bottom Line

Apple’s Siri transformation is still very much alive—but it’s arriving in stages.

Instead of rushing unfinished AI features into one big release, the company appears to be:

• Phasing capabilities across multiple updates
• Prioritizing reliability and privacy
• Cleaning up the core operating system
• Targeting real battery-life gains

For users, it means the smartest version of Siri is still coming—just on Apple’s typically deliberate timeline.