watchOS 4.2

watchOS

Version

4.2

Build ID

15S5090c

File Size

74.93 MB

Release Date

2017-11-06T18:03:52Z

Update Type

Normal release

Delta update - requires 4.2 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 2017-11-06T18:03:52Z. The update package is 74.93 MB. This is a delta (partial) update that requires 4.2 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 ca28da9a0969b65eab2a56f252869f5f09973134.zip.

Direct URL

http://appldnld.apple.com/watchos4.2seed/091-43181-20171102-2A4B0622-C027-11E7-A2FC-4434692136F1/com_apple_MobileAsset_SoftwareUpdate/ca28da9a0969b65eab2a56f252869f5f09973134.zip