OTA Updates/iPad Air/13.5

iPad Air 2

iPad5,3

Users still running older versions of iOS (up to 9.3.5) are now presented with a dummy update file, and are instructed to use iTunes to install software updates.

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
13.5	17F75^[1]	—		20 May 2020 (2020-05-20)	f7a43a820a5ac68d3b54881d756814a901b6293a.zip	2,848,069,339
13.5	17F75	—		20 May 2020 (2020-05-20)	f7a43a820a5ac68d3b54881d756814a901b6293a.zip	2,848,069,339

iPad5,4

Users still running older versions of iOS (up to 9.3.5) are now presented with a dummy update file, and are instructed to use iTunes to install software updates.

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
13.5	17F75^[1]	—		20 May 2020 (2020-05-20)	2f0192cdae867b5ee9b20976a46ef3e3c74f28ae.zip	2,877,267,378
13.5	17F75	—		20 May 2020 (2020-05-20)	2f0192cdae867b5ee9b20976a46ef3e3c74f28ae.zip	2,877,267,378

iPad Air (3rd generation)

iPad11,3

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
13.5	17F75^[1]	—		20 May 2020 (2020-05-20)	7d01f8a6211693bb58dae33174d653de43a1c03d.zip	3,271,113,728
13.5	17F75	—		20 May 2020 (2020-05-20)	7d01f8a6211693bb58dae33174d653de43a1c03d.zip	3,271,113,728

iPad11,4

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
13.5	17F75^[1]	—		20 May 2020 (2020-05-20)	add613a45d9fb839e37663b8e85ad7a8394b647b.zip	3,311,860,449
13.5	17F75	—		20 May 2020 (2020-05-20)	add613a45d9fb839e37663b8e85ad7a8394b647b.zip	3,311,860,449

Notes

^ ^a ^b ^c ^d Apple inflated the build number in its mesu.apple.com listing, presumably to make the device recognize the update. (e.g. 17F75 was listed as 17F6075.) The listings on this page use the build number displayed on the device.

[inflated-1] Apple inflated the build number in its mesu.apple.com listing, presumably to make the device recognize the update. (e.g. 17F75 was listed as 17F6075.) The listings on this page use the build number displayed on the device.

[1]