Apple just announced watchOS 27, the next version of its Apple Watch operating system, introducing support for Siri AI, a redesigned “dynamic” app grid, and improvements to health and fitness tracking. The watchOS 27 update will be available “this fall,” according to Apple, though support is notably limited — the new OS will only be available for Apple Watch Series 9 models or newer, including the Ultra 2, Ultra 3 , and SE 3 . The biggest update coming to supported Apple Watch models is Siri AI — the next generation of Apple’s virtual assistant, powered by Apple Intelligence. This comes with a new, dedicated Siri app that “brings together all your conversations in one place,” according to Apple, allowing users to start a conversation with the chatbot directly on their Apple Watch, or ask questions on their iPhone and then pick up where they left off from their wrist.…