OTA Updates/iPad Air/13.4

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
13.4	17E255^[1]	—		24 March 2020 (2020-03-24)	b5e32b27b13b62194b87a83dd093664a9226d690.zip	2,843,978,304
13.4	17E255	—		24 March 2020 (2020-03-24)	b5e32b27b13b62194b87a83dd093664a9226d690.zip	2,843,978,304

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
13.4	17E255^[1]	—		24 March 2020 (2020-03-24)	cf1cf4044795a424ff2fd4edac16bb162d78ec11.zip	2,865,277,931
13.4	17E255	—		24 March 2020 (2020-03-24)	cf1cf4044795a424ff2fd4edac16bb162d78ec11.zip	2,865,277,931

iPad Air (3rd generation)

iPad11,3

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
13.4	17E255^[1]	—		24 March 2020 (2020-03-24)	7011d28f3f21d0ce79e44e1c626351098def6b7d.zip	3,235,996,678
13.4	17E255	—		24 March 2020 (2020-03-24)	7011d28f3f21d0ce79e44e1c626351098def6b7d.zip	3,235,996,678

iPad11,4

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
13.4	17E255^[1]	—		24 March 2020 (2020-03-24)	1f0a13cf9896c9282aac01fb7d4600ee5b4482a6.zip	3,276,075,161
13.4	17E255	—		24 March 2020 (2020-03-24)	1f0a13cf9896c9282aac01fb7d4600ee5b4482a6.zip	3,276,075,161

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. 17E255 was listed as 17E6255.) 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. 17E255 was listed as 17E6255.) The listings on this page use the build number displayed on the device.

[1]