Registered developers can download the latest versions of iOS and watchOS from Apple. Apple made both iOS 11.4.1 beta 1 and watchOS 4.3.2 beta 1 available for download. There’s no word on what changes are baked into the latest code, though any changes are likely confined to bug fixes and performance improvements. Apple released iOS 11.4 to the general public earlier this week. iOS 11.4 introduced iMessage in the Cloud and AirPlay 2 to iPhones and iPads. Apple hasn’t made public betas of iOS 11.4.1 and watchOS 4.3.2 available yet, but likely will before the end of the week.
Source: Phone Scoop – Latest News