watchOS 4.2

watchOS

Version

4.2

Build ID

15S5090c

File Size

150.73 MB

Release Date

2017-11-06T18:03:51Z

Update Type

Normal release

Delta update - requires 4.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (42mm) →

About This Update

watchOS 4.2 (build 15S5090c) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm), released on 2017-11-06T18:03:51Z. The update package is 150.73 MB. This is a delta (partial) update that requires 4.1 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 7368291fb225989d030a6f64e13a11d80d5b1f84.zip.

Direct URL

http://appldnld.apple.com/watchos4.2seed/091-42951-20171102-16A2C498-C027-11E7-876A-C330692136F1/com_apple_MobileAsset_SoftwareUpdate/7368291fb225989d030a6f64e13a11d80d5b1f84.zip