macOS and iPadOS 26.3.1 software releases coming before new iOS 26.4 iPhone update
Source: 9to5Mac

Apple confirms on its website that both iPadOS 26.3.1 and macOS 26.3.1 software releases are coming before the new iOS 26.4 iPhone update is released. This likely means that iOS 26.3.1 for iPhone is also confirmed.
Apple’s new Studio Display and Studio Display XDR require 26.3.1
For the Mac and iPad, macOS 26.3 and iPadOS 26.3 are the latest software versions, respectively.
However, Apple says on the product page for its new Apple Studio Display and Apple Studio Display XDR that OS versions 26.3.1 are required. Apple hasn’t released either of these software updates yet.
- Apple announces Studio Display XDR with 120 Hz refresh rate, mini‑LED, more
- Apple launches new generation of Studio Display
- Apple discontinues the Pro Display XDR
This confirms that Apple is planning an update to its 26.3 software before releasing the upcoming 26.4 versions. 9to5Mac previously reported that iOS 26.3.1 was seen in testing.
Apple has released one 26.3.1 software update so far, with a late‑Friday release of visionOS 26.3.1 that addressed a video playback issue: visionOS 26.3.1 now available with Apple TV app fix.
H/T Aaron Zollo! (https://x.com/zollotech/status/2028843193677013025)