Apple is presently beta testing iOS 26.4 as its forthcoming significant iPhone update, but it seems that a smaller software release, iOS 26.3.1, is poised to be launched first. Information from visitor logs at 9to5Mac suggests that iOS 26.3.1 is under active development at Apple, succeeding the earlier release of iOS 26.3, which emphasized bug fixes and security enhancements while unveiling a few new features.
The testing phase of iOS 26.3.1 implies that it will bring further bug fixes and optimizations. Traditionally, when indications of a minor iOS build surface in internal logs, the update generally becomes available within a week or two. For example, iOS 26.2.1 was confirmed on January 12 and was subsequently released on January 26, introducing AirTag 2 support and various bug fixes.
With new products anticipated to be launched soon, including a new iPhone model, it is probable that iOS 26.3.1 will be unveiled around the same period. This update might also offer compatibility for upcoming devices, in addition to the regular enhancements in security and bug fixes.
Information regarding iOS 26.3.1 will be disclosed once the update is live. Users are invited to share their feedback on iOS 26.3 in the comments.