iOS 26.5.1 Update for iPhones is Coming Soon
Apple's software engineers are testing iOS 26.5.1, according to the MacRumors visitor logs, which have been a reliable indicator of upcoming iOS versions.

iOS 26.5.1 will almost certainly be a minor update that fixes bugs and/or security vulnerabilities, and it will likely be released by the end of next week.
The logs show that Apple has ramped up testing of iOS 26.6 as well, with a first beta of that update likely to be released at some point in June. iOS 26.6 will likely be a minor update as well. Last year, Apple seeded the first beta of iOS 18.6 to developers on Monday, June 16, which was three days after WWDC 2025 ended.
Apple is shifting its attention towards iOS 27, which is set to be unveiled during the WWDC 2026 keynote on Monday, June 8 at 10 a.m. Pacific Time.
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iOS 26.6 and iPadOS 26.6 can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update.
According to Apple's release notes, iOS 26.6 and iPadOS ...
Apple today released iOS 26.6, iPadOS 26.6, and macOS Tahoe 26.6, all of which have a long list of security fixes.
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Apple's software engineers are internally testing iOS 26.6.1, according to the MacRumors visitor logs.
Apple already released macOS 26.6.1 yesterday with a fix for a security vulnerability affecting the Screen Sharing app. iOS 26.6.1 would likely include bug fixes and/or security fixes as well, should Apple move forward with releasing the update in the coming days.
For example, iOS 26.6...