Apple has released the fifth iOS 27 beta for developer testing. This release continues the summer beta cycle ahead of a public release next month. Developers can access it via Settings, though users should expect bugs, battery life drops, and app compatibility issues.

iOS 27 is one of Apple’s most AI-focused updates yet. The headline change is Siri AI, powered by the next generation of Apple Intelligence and new Apple Foundation Models. Siri AI brings richer conversations, personal context, on-screen awareness, and deeper app actions. It also features a new visual experience tied to the Dynamic Island.

Beyond Siri, Apple is expanding AI-powered improvements across Photos, Safari, and Mail. Other refinements include a Liquid Glass design transparency slider and performance improvements for app launches, Air Drop transfers, and Wi-Fi-to-cellular transitions.