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	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	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