watchOS 4.2

watchOS

Version

4.2

Build ID

15S5102b

File Size

327.77 MB

Release Date

2017-11-17T18:16:56Z

Update Type

Normal release

Delta update - requires 4.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch (42mm) →

About This Update

watchOS 4.2 (build 15S5102b) is an official Apple over-the-air update for the Apple Watch (42mm), released on 2017-11-17T18:16:56Z. The update package is 327.77 MB. This is a delta (partial) update that requires 4.0 to already be installed on the device - it cannot be applied from scratch. This update is no longer signed by Apple, meaning it can no longer be downloaded and applied on-device through Settings.

The OTA payload file is 3558186b10ae100750da83890a74816390a83acd.zip.

Direct URL

http://appldnld.apple.com/watchos4.2seed/091-47402-20171117-8C833B8A-CA3A-11E7-BB4D-D28C674CD23E/com_apple_MobileAsset_SoftwareUpdate/3558186b10ae100750da83890a74816390a83acd.zip