Core Insights - Apple has released the sixth public beta of iOS 26, iPadOS 26, macOS 26 (codename Tahoe), and tvOS 26 to global public testers, with the official version expected to be released after the September product launch event [1][3] Group 1 - This marks the first time Apple's "liquid glass" design language is applied across all platforms [3] - The official versions of iOS 26 and iPadOS 26 will be available for free to iPhone 11 and later models, iPad Air 3 and later models, and all M-series iPad Pro devices this fall [3] - macOS Tahoe will support upgrades for Mac models from late 2019 and later [3] Group 2 - Apple advises that the public beta is still in testing phase, recommending caution for primary device users and suggesting they back up their data before upgrading [3] - After the official version is released, public testers can switch to the official channel without needing to reinstall the operating system [3]