Apple iOS 26.5.1 iPhone Update Reportedly Rolling Out Soon
▼ Summary
– The article, updated on May 26, reports that iOS 26.5.1 is expected to be released soon, following the May 11 launch of iOS 26.5.
– iOS 26.5.1 is expected to be a minor update focused on bug fixes and security issues, likely tweaking features from the major iOS 26.5 release.
– Reported issues that may be addressed include battery drain, overheating, app glitches, delayed keyboard response, and animation lag on some iPhone models.
– The update is unlikely to be a Background Security Improvements (BSI) patch, which would have an “(a)” in its name and be located in the Settings app under Privacy & Security.
– Apple is not expected to release an iOS 18 update for older iPhones this time, as it wants users to adopt the more feature-rich and secure iOS 26.
Less than two weeks after releasing iOS 26.5 on Monday, May 11, 2026, Apple is reportedly preparing to roll out not one but two additional updates. The first, iOS 26.5.1, could arrive within days. Here is what users can expect and when it might land.
What iOS 26.5.1 Will Likely Contain
Apple frequently follows a major point release with a smaller, corrective update. The timing fits perfectly for iOS 26.5.1, especially given the scope of the previous release. While minor updates typically focus on bug fixes and security patches, the introduction of RCS messaging in iOS 26.5 , a significant feature that brought encrypted messaging between Android and iPhone , means the next update will almost certainly fine-tune these new capabilities.
Security fixes may be lighter this time around, given that iOS 26.5 patched over 60 vulnerabilities, unless some of those fixes didn’t fully stick. According to The Mac Observer, user reports still highlight persistent issues. Battery drain, overheating, app glitches, and occasional performance lags continue to affect some iPhone models. While I initially heard complaints about battery drain after iOS 26.5, that is common during the first few days post-installation as the system re-indexes. The problem tends to worsen for users who skipped several updates , for example, jumping from iOS 26.1 directly to iOS 26.5.
The same report also notes delayed keyboard response and animation lag after installing iOS 26.5. These are the kinds of annoyances that iOS 26.5.1 is expected to address.
What This Update Probably Isn’t
This release is unlikely to be a Background Security Improvements (BSI) update. Those lightweight patches, which install quickly and can be easily removed, are rare. Only one has been issued so far, back in late March 2026. BSI updates typically carry an (a) in their version number , like iOS 26.3.1(a) , and are found in a different location: Settings > Privacy & Security, at the very bottom of the page. If iOS 26.5.1 turns out to be a BSI update, I will report back.
A Word on Older iPhones
When iOS 26.5.1 does arrive, it is unlikely to include an iOS 18 update for older devices. Apple stopped allowing iPhone 11 and later models to install iOS 18 updates months ago, with two recent exceptions: iOS 18.7.7 and iOS 18.7.8. I do not expect that pattern to repeat this time. Apple wants as many users as possible on iOS 26, which offers more features and stronger security. Besides, the first developer beta of iOS 27 is less than two weeks away.
(Source: Forbes)
