OTA Updates/iPod touch/9.0.2

iPod touch (5th generation)

Users still on iOS 6.0 through 7.0.6 must update to 8.4.1 via OTA prior to installing OTA updates for iOS 9.0 or newer.

Users still on iOS 7.1 through 7.1.2 may update to iOS 9.0, but appear to be given a dummy update first.

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	Release Type	OTA Download URL	File Size
9.0.2	13A452	7.1	11D167	30 September 2015	—	7b2f4d59ba5f1aede16a90c62864c449b98fca65.zip	1,024,364,792
		7.1.1	11D201		—	b63812ede98fdf678f896c5ea24949ec7ebd21cf.zip	1,024,362,382
		7.1.2	11D257		—	a0e0537d2ee190126e10a9689c64922a6bbe3684.zip	1,024,369,214
		8.0	12A365		—	32ce2bb32ae30981b6f176587c95c919478ef94e.zip	953,918,772
		8.0.1	12A402		—	e6a79272ebbe721db1236be25a0bdebe0cc33a77.zip	952,887,858
		8.0.2	12A405		—	f4f6b258b606626199fc5ff32425a9c52b3aed5c.zip	952,897,032
		8.1	12B411		—	d3e3555f2a301275480f9666b1b85d1aac21d062.zip	951,841,253
		8.1.1	12B435		—	e6b08545311aae81964a0501727124484cbe7ed9.zip	949,070,442
		8.1.2	12B440		—	70f21092878eafa5c21251b605855f7dae1efc55.zip	949,060,160
		8.1.3	12B466		—	efaad3384f1728943072eed055dca9ae9cda8ab5.zip	949,064,850
		8.2	12D508		—	415ce05f578cdb0c779d91f4d74ba8ebf5db3dee.zip	906,148,944
		8.3	12F69		—	42598f05db0fd10386fa305093eed614f1051e1f.zip	865,391,997
		8.4	12H143		—	57ac9ce74594cad7e1c684325c1651c7a185f341.zip	862,141,562
		8.4.1	12H321		—	175b09111acd46adbad5f043e815d3d05864108e.zip	862,009,403
		9.0 GM	13A340		—	12abecbb882edc978ca8d4bad3515b71c060f87f.zip	33,464,592
		9.0	13A344		—	5ae480e4b70d558c610eb85268a856aad272bb4c.zip	33,095,346
		9.0.1	13A404		—	851f974fd7c414753b0a1fe19d51087b78fd015e.zip	32,876,661

iPod touch (6th generation)

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	Release Type	OTA Download URL	File Size
9.0.2	13A452	8.4	12H143	30 September 2015	—	839a4910f50922c6f1fc73a68169b5448310b235.zip	1,013,589,537
		8.4.1	12H321		—	16685b48adde3e655fb102681fed74099fa4cfb1.zip	1,013,588,818
		9.0 GM	13A340		—	4e82d57d4c5d9b6d74e243c1cae75a0d016985ff.zip	45,865,264
		9.0	13A344		—	06cdb922737e127699442f29711e57d6137bc6cc.zip	44,560,890
		9.0.1	13A404		—	d936ae8913b7538fc340889a84e70907b9f47cde.zip	44,339,325

Over-the-air, often used to refer to OTA Updates, where an iOS device downloads and installs an update on itself without assistance from external hardware