iOS 18.3 is currently in beta for developers and public beta testers. So far, the upcoming iPhone software update is very minor in scope.
Below, we outline what is new in iOS 18.3 so far.
The only potential new feature coming to iPhones with iOS 18.3 so far is robot vacuum support in the Home app, but this functionality is not yet live. Apple is laying the groundwork for the feature, according to new lines of code added in the iOS 18.3 beta, but it is unclear if it will be available by time iOS 18.3 is released to the public.
When available, this feature will allow you to control key functions of your robot vacuum in the Home app, and with Siri voice commands.
Here is how Apple describes the feature:
The Home app now supports the core functionality of robot vacuum cleaners, such as power control, cleaning mode, vacuum, mop, and charge status. They can also participate in automations and scenes, and respond to Siri requests. So you can add them to your cleaning routines — or tell Siri to do some spot cleaning in the living room.
Beyond that, iOS 18.3 only has very minor change so far, such as a slightly tweaked Image Playground icon and bug fixes.
Apple has only seeded one beta of iOS 18.3 so far, so additional new features and changes could be added in later betas. However, it is typical for Apple software updates that are in beta testing during the holiday season to be minor, as Apple's software engineers are off from work for many days and critical issues need to be avoided.
iOS 18.3 will likely be released in late January or early February.
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Below, we have recapped known or rumored iOS 26.3 and iOS 26.4 features so far.
iOS 26.3
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iOS 26.3 makes it easier...
