Apple has seeded the first betas of iOS 16.3, iPadOS 16.3, tvOS 16.3, and watchOS 9.3 to developers, renewing the beta software process.
Developers can download the latest builds by taking part in the beta testing program via the Apple Developer Center. Public beta versions of the releases generally arrive a short while after their developer counterparts, available through the Apple Beta Software Program.
Apple issued release candidates for the previous beta generation, which included iOS 16.2, iPadOS 16.2, tvOS 16.2, and watchOS 9.2, on December 7.
The first iOS 16.3 and iPadOS 16.3 betas have build number 20D5024e, replacing build 20C65. The first beta of watchOS 9.3 has build number 20S5626e, replacing build 20S361. The tvOS 16.3 build number and HomePod Software Version 16.3 build is 20K5626c, up from build 20K362.
AppleInsider and Apple strongly advise users don't install beta operating systems, or beta software in general, on to "mission-critical" or primary devices, as there is the chance of issues that could result in the loss of data. Testers should instead use secondary or non-essential hardware and ensure they have sufficient backups of their critical data at all times.