Download iPadOS 11.4 (15F79) for iPad Pro 12.9-inch (WiFi)

You will have to note that you can only restore signed IPSW firmware files using iTunes or 3utools.

❌ This IPSW firmware is not being Signed by Apple

Firmware Identifier iPad6,7
iPadOS Version 11.4
Release Date 2018-05-29
Update Date 2018-05-18
Sha1sum
ddc3a0f0a8181a1d1da09bf53e287415fb7291d2
Sha256sum
448989bce364a41263031fc19c0214530a2b3eea085938e22e7d31654fa16aaa
md5sum
90cc80dceea328581c9592d8e6884224
Size 2.46 GB
FileName
iPadPro_12.9_11.4_15F79_Restore.ipsw
Status

Download IPSW (2.46GB) Check device info
Release Notes

It should be noted that these are the official release notes for the from Apple

iOS 11.4 includes AirPlay 2 multi-room audio, support for HomePod stereo pairs, and Messages in iCloud. This update also includes bug fixes and improvements.

AirPlay 2

HomePod stereo pair

Messages in iCloud

Other improvements and fixes

For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/kb/HT201222