{"id":51893,"date":"2026-05-12T14:25:47","date_gmt":"2026-05-12T18:25:47","guid":{"rendered":"https:\/\/mjtsai.com\/blog\/?p=51893"},"modified":"2026-05-19T11:05:13","modified_gmt":"2026-05-19T15:05:13","slug":"xcode-26-5","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2026\/05\/12\/xcode-26-5\/","title":{"rendered":"Xcode 26.5"},"content":{"rendered":"<p><a href=\"https:\/\/developer.apple.com\/documentation\/xcode-release-notes\/xcode-26_5-release-notes\">Apple<\/a> (<a href=\"https:\/\/download.developer.apple.com\/Developer_Tools\/Xcode_26.5\/Xcode_26.5_Universal.xip\">xip<\/a>, <a href=\"https:\/\/developer.apple.com\/download\/all\/\">downloads<\/a>):<\/p>\n<blockquote cite=\"https:\/\/developer.apple.com\/documentation\/xcode-release-notes\/xcode-26_5-release-notes\">\n<p>Xcode 26.5 includes Swift 6.3 and SDKs for iOS 26.5, iPadOS 26.5, tvOS 26.5, macOS 26.5, and visionOS 26.5. Xcode 26.5 supports on-device debugging in iOS 15 and later, tvOS 15 and later, watchOS 8 and later, and visionOS. Xcode 26.5 requires a Mac running macOS Tahoe 26.2 or later.<\/p>\n<p>[&#8230;]<\/p>\n<p>Messages can now be queued in the coding assistant.<\/p>\n<p>Agents can now ask clarifying questions to provide more accurate results.<\/p>\n<p>[&#8230;]<\/p>\n<p>Mac (Designed for iPad) apps with pointer authentication are now compatible with macOS Tahoe 26.5 and newer.<\/p>\n<\/blockquote>\n\n<p>Previously:<\/p>\n<ul>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2026\/04\/17\/xcode-26-4-1\/\">Xcode 26.4.1<\/a><\/li>\n<\/ul>\n\n<p id=\"xcode-26-5-update-2026-05-18\">Update (<a href=\"#xcode-26-5-update-2026-05-18\">2026-05-18<\/a>): <a href=\"https:\/\/objc.social\/@macguru17\/116596199792021633\">Max Seelemann<\/a>:<\/p>\n<blockquote cite=\"https:\/\/objc.social\/@macguru17\/116596199792021633\">\n<p>Aaaaaand another few hours that went into diagnosing, reporting and working around a new <a href=\"https:\/\/github.com\/swiftlang\/swift\/issues\/89214\">compiler bug<\/a> (with Xcode 26.5 \/ Swift 6.3.2). &#x1F972;<\/p>\n<blockquote cite=\"https:\/\/github.com\/swiftlang\/swift\/issues\/89214\"><p>Swift 6.3.2 ships a compiler bug that can violate MainActor isolation.<\/p><\/blockquote>\n<\/blockquote>\n\n<p><a href=\"https:\/\/mastodon.social\/@mattiem\/116596329857995556\">Matt Massicotte<\/a>:<\/p>\n<blockquote cite=\"https:\/\/mastodon.social\/@mattiem\/116596329857995556\">\n<p>This is a very serious problem, and while it is covered in the release notes, I&rsquo;ve been telling people to avoid 26.5. It&rsquo;s not really a usable release.<\/p>\n<\/blockquote>\n\n<p><a href=\"https:\/\/objc.social\/@macguru17\/116596336728954958\">Max Seelemann<\/a>:<\/p>\n<blockquote cite=\"https:\/\/objc.social\/@macguru17\/116596336728954958\">\n<p>It took me reading the release notes like 10 times to even understand what they were trying to say there. And then 5 more times that it overlaps with my own finding. Also the attribution to Upcoming Features is incorrect imo. It&rsquo;s a really bad bug diagnosis and description.<\/p>\n<\/blockquote>\n\n<p id=\"xcode-26-5-update-2026-05-19\">Update (<a href=\"#xcode-26-5-update-2026-05-19\">2026-05-19<\/a>): <a href=\"https:\/\/macguru.dev\/xcode-should-be-decoupled-from-swift-versions\/\">Max Seelemann<\/a>:<\/p>\n<blockquote cite=\"https:\/\/macguru.dev\/xcode-should-be-decoupled-from-swift-versions\/\">\n<p>It&rsquo;s a really simple, really basic use of the language, and it produces a crash.<\/p>\n<p>[&#8230;]<\/p>\n<p>I have zero inside knowledge about this, so maybe the issue was actually found even earlier. But it seems safe to assume it was known before the release.<\/p>\n<p>[&#8230;]<\/p>\n<p>OS releases set the pace and Xcode follows along. I doubt a bug in an Xcode version would ever be able to delay an OS release.<\/p>\n<p>[&#8230;]<\/p>\n<p>Maybe not a perfect solution, but a significant step forward would be to decouple Swift and Xcode versions.<\/p>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"<p>Apple (xip, downloads): Xcode 26.5 includes Swift 6.3 and SDKs for iOS 26.5, iPadOS 26.5, tvOS 26.5, macOS 26.5, and visionOS 26.5. Xcode 26.5 supports on-device debugging in iOS 15 and later, tvOS 15 and later, watchOS 8 and later, and visionOS. Xcode 26.5 requires a Mac running macOS Tahoe 26.2 or later. [&#8230;] Messages [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"2026-05-12T18:25:50Z","apple_news_api_id":"29839a66-d4b0-4f6d-bd47-691fa50d26cf","apple_news_api_modified_at":"2026-05-19T15:05:17Z","apple_news_api_revision":"AAAAAAAAAAAAAAAAAAAAAQ==","apple_news_api_share_url":"https:\/\/apple.news\/AKYOaZtSwT229R2kfpQ0mzw","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":"\"\"","apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"footnotes":""},"categories":[4],"tags":[131,30,2742,71,2743,2200,901,226],"class_list":["post-51893","post","type-post","status-publish","format-standard","hentry","category-programming-category","tag-bug","tag-mac","tag-macos-tahoe-26","tag-programming","tag-swift-assist","tag-swift-concurrency","tag-swift-programming-language","tag-xcode"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/51893","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/comments?post=51893"}],"version-history":[{"count":3,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/51893\/revisions"}],"predecessor-version":[{"id":51945,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/51893\/revisions\/51945"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=51893"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=51893"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=51893"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}