--- title: iOS 27 Beta 4 Released - What's New? | daily.dev description: iOS 27 beta 4 has been released for registered developers, with a public beta coming soon. Key changes include the return of the 'Optimizing Search and Siri'... canonical: https://daily.dev/posts/ios-27-beta-4-released---what-s-new--rvnz8btn1 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: iOS 27 Beta 4 Released - What's New? | daily.dev og:description: iOS 27 beta 4 has been released for registered developers, with a public beta coming soon. Key changes include the return of the 'Optimizing Search and Siri'... og:url: https://daily.dev/posts/ios-27-beta-4-released---what-s-new--rvnz8btn1 og:image: https://api.daily.dev/og/posts/RvnZ8BTN1.png og:image:alt: iOS 27 Beta 4 Released - What's New? og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # iOS 27 Beta 4 Released - What's New? **[YouTube](https://daily.dev/sources/youtube)** · 15 min read · 1 upvotes · 0 comments ## Summary iOS 27 beta 4 has been released for registered developers, with a public beta coming soon. Key changes include the return of the 'Optimizing Search and Siri' indexing process, seven Siri voice options (up from two) with new accents like Australian, British, Indian, Irish, and South African, and a new Siri onboarding splash screen. The iCloud icon received a subtle redesign, lock screen control toggles reverted to a more translucent liquid glass look, and lockdown mode settings were reorganized with updated descriptive text. Wi-Fi connectivity assist now supports per-network toggles rather than a single global switch. A notable bug from beta 3 involving lock screen subject cutout animations has been patched. Code references to a multi-battery iPhone were also spotted, hinting at a possible foldable or Ultra model. Beta 4 shows the highest number of resolved issues so far in the iOS 27 cycle, with battery life and performance reported as solid. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [The new iOS 27 beta 4 features you need to know](https://daily.dev/posts/the-new-ios-27-beta-4-features-you-need-to-know-eyvqe9l1p) · Medium · 0 upvotes · 0 comments --- Tags: [#apple](https://daily.dev/tags/apple), [#mobile](https://daily.dev/tags/mobile), [#ios](https://daily.dev/tags/ios) [View this post on daily.dev](https://daily.dev/posts/ios-27-beta-4-released---what-s-new--rvnz8btn1) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"iOS 27 Beta 4 Released - What's New?","url":"https://daily.dev/posts/ios-27-beta-4-released---what-s-new--rvnz8btn1","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/ios-27-beta-4-released---what-s-new--rvnz8btn1"},"datePublished":"2026-07-27T03:27:33.870Z","dateModified":"2026-07-27T03:27:54.957Z","description":"iOS 27 beta 4 has been released for registered developers, with a public beta coming soon. 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