After releasing watchOS 27.0.1 for Apple Watch Series 12 and Apple Watch Ultra 4 last week to fix a bug that caused the devices to restart unexpectedly, Apple has now released the update for all eligible watches, which includes the Series 9 and later.
Apple’s release notes only say that the update “provides bug fixes for your Apple Watch” and the company doesn’t list any security fixes, so it’s unclear what exactly the update fixes.
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