watchOS 4.2

watchOS

Version

4.2

Build ID

15S5102b

File Size

274.45 MB

Release Date

2017-11-17T18:17:17Z

Update Type

Normal release

Delta update - requires 4.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 2 (42mm) →

About This Update

watchOS 4.2 (build 15S5102b) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2017-11-17T18:17:17Z. The update package is 274.45 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 c173faf4ed5eecc32221904a2edfee688cba8618.zip.

Direct URL

http://appldnld.apple.com/watchos4.2seed/091-47472-20171117-B66AE0D8-CA3A-11E7-9874-4192674CD23E/com_apple_MobileAsset_SoftwareUpdate/c173faf4ed5eecc32221904a2edfee688cba8618.zip