OTA Updates/Apple TV/18.3.1

This is a list of all OTA updates for Apple TV on tvOS 18.3.1. For more Apple TV OTA updates, see OTA Updates/Apple TV. For all firmware, see Firmware.

Apple TV 4K (3rd generation)

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	Extraction Key	File Size
18.3.1	22K561^[1]	—		11 March 2025 (2025-03-11)	9567f35cd2178c4bf6c333f9349d3ebd4b8b5b009ed09825b4f19b9ce39ac803.aea	`LoL6/d6jziauGuXLU9prIzeDH3YmIiRA+oVY6UCPGvk=`	4,294,967,296
	22K561	—				`LoL6/d6jziauGuXLU9prIzeDH3YmIiRA+oVY6UCPGvk=`	4,294,967,296
		16.0	20J8378		9f6de5ecae4f0451a86c59dfc392973228f85e578ac6a6ac45c244a6b8833ebb.aea	`0NbibdHVczjupF0Og4mAi6d4ZlHbBdCLcCIsdUsRWI0=`	2,550,136,832
		16.1	20K71		1d1fe06dea40e32428ab63ba21962e1f8c264697404f6e8e971f108067deb265.aea	`rJ4NkzXPbybP2DKqoPGjBuAI5IZo9kUo4r9vLx2v5qk=`	2,617,245,696
		16.2	20K362		6a8435d5f724f59f414109418244eb99c83c11f7ae77ca7404c59c0dbf682f50.aea	`9qfDcCHWneuIdkt3I7EgX7Dz0kvTrL24ZHzKJxfEWFg=`	2,550,136,832
		16.3	20K650		4b6840f80904476319731daf62a2afeae9e41181fe768d673612fd56b4db265d.aea	`TavGS1fVTVFxucHAvSTxjTLlJ/sEh69ADLrKeJ2lMrA=`	2,483,027,968
		16.3.1	20K661		6bcd52b4cd8a56ed55281676cef5d313902411273298ac700354aeb3a01b96a9.aea	`ieSjFVbOKRZj2mH4CNX6G6eKobX1AE+3Vmy2TU32qiI=`
		16.3.2	20K672		9eb676efbb75b1a8ab8da0b182ba2b8928a6ba9457182c83c6bb00963e250e5e.aea	`K8+4PMvp+wSeXMpRJ5T2QEe25uWqUiUoK26yY91vxss=`
		16.3.3	20K680		ca123f9137a5d33fa1d1adfd5a5eb00b4e97615732f8d008c5f2956686ef3e27.aea	`KC+no3+rhgZVkbYpeqTOBXNr7FQV8rihZWRCbr78ABc=`
		16.4	20L497		e6aa3afb11a676e9bc13c3ca7362362ca3a8c5bca68e542475bd0b20238d549d.aea	`wZus49aKAiQO2Wf+YllzM594kyyfjnzHyq6clE/ohQQ=`
		16.4.1	20L498		ba7226044501298d4720d2df5ab29043c0893f9fd651067fca52fa6850727675.aea	`TeoHUo87kjwzaNfqaHnV3G2MtzTDMYs4KGs1ockd69s=`
		16.5	20L563		2f0e6aa833059729ce4c2f22343420b035c17be2ff478195c4084b33552e7021.aea	`HsD2LCTy5knu/PSdVVhIVOuzlGQURBiDsRu2BFyCYNs=`	2,415,919,104
		16.6	20M73		129936c3a7b953587e3570e8c60c681b6ec6908bee919f9f2937e0a8a778001e.aea	`R4voNH4/n8q9B/GActlr7Po1mFBIWGLf5aFI4ey+Auk=`	2,415,919,104
		17.0	21J354		b1362fa62d0b1379a8b48c8ffd7355311453f078d951dddb72ad45376a8b3e80.aea	`RHLvtYzfrw3QelWmlFd5uMvVkTtPhQQa9UpF1fJwNo0=`	2,080,374,784
		17.1	21K69		a3ce90367dfb44a94f3a921160324c44e0bdd166f9bf39211cac22852258ce63.aea	`F9NvGhN85cXe2cefTwnOtEBln6i3vC0i9t0rHzykD3Y=`	2,080,374,784
		17.2 RC	21K364		95449eb98fbb289512b6b3d69f7c810f8ef3e0de58f6274e73ac4fb9d9c5e0f3.aea	`uTBHlpq7xrdcgdn4whqO+We/K8uWsK17eWKtg/s3lT8=`	1,979,711,488
		17.2	21K365		374d183a3a51d6f7810e0d77d2aba9bc5f37b664b13f64daff71b717dbfd2dc8.aea	`reLOY0qua0zVLPKKtC6nOj0ZvKUgcIpB0UDSHHptmBw=`	1,979,711,488
		17.3	21K646		8327d6a101995097b6af8befd27734a438e62e20f37f316daa6a78ce64bef9ec.aea	`NUK2pdE1WF/ylm49ahZdS1TvDqFwKaxhixTR7tEVG20=`	1,946,157,056
		17.4	21L227		8a5912821b5d7bd132e3a7a037d99bdbbea29718bfca6dbe0671153c7b0334c3.aea	`iOngUVO4e23qBx1oprk157zOxxs4R63bo0PgBEPvexQ=`	1,912,602,624
		17.5	21L569		bbdcc83b57147f1071dbac257f2e9007d45089961826a7ef4eca9b16313f70e8.aea	`xkb9haG1ToisUu4Sc/do7gB75LeT0K3Ucq7i8s3D5Hk=`	1,879,048,192
		17.5.1	21L580		1396507e697151daf928b738d141af90159587b6d5e925694757e4c02275641b.aea	`iHwT3y/rB/zQa0CRmeZeY0NUIsUwH9KbDhxcryDGHqc=`
		17.6	21M71		8e4371321618179ee7c38fffe61ff57380d48ccc5bf0632afe316955ccedf8c9.aea	`EM9hGwXyVhXS2WWzKCoMBrdjRO8D52mXDgkQ6Ty5wDo=`
		17.6.1	21M80		c6459287ca3166572e1e3cfe9107a9bd25b59b671dec43bf554bf7c7c5c7f845.aea	`LU5AkFp32XFILtu41uoSZGVkd6TOjBnB2T1QnNtYyug=`
		18.0	22J357		b3af60b7a80fcab04b2bc447ffab8bc9af16b6a8a98aefd3aeabab3087105a58.aea	`To6qNYhHaSG8fCna3IsPA3B6vaRSmNewJeaCPHSy73s=`	1,107,296,256
		18.1	22J580		2aa1634fcd0d044d202d26bd3c8da829b6a8665f3208364c1f4f1e9b54ad2114.aea	`paMIZs3e19mmEMo/wnaU9189ZNn9mOwMc/cNuobfbOs=`	973,078,528
		18.2	22K155		eb5d378e54848928142b4ce6faed1b4dc54a147dc5532cf4743fc9d44b1025b2.aea	`v+0Qj8S2WGgiLGvL7X1PPfFqYoBbH3PfgPPDA24WclY=`	436,207,616
		18.2.1	22K160		c506ba4426520803286f64deccf4bc3c8a7b83e48fa70bb9049bbb658af34cac.aea	`dspetRVxzC0wBw6z3T+sfciUIEzUOH1Whf/dm70nokM=`	436,207,616
		18.3	22K557		8a696db1f345a5411ffe903afe1eba0c17c4e9af7bde0b6036d6593060fb52bc.aea	`i6Knm6AFk+ev6XniZnqQqvpFJI/28gkUvbpYVE/6M+o=`	90,177,536

Notes

^ Apple inflated the build number in its mesu.apple.com listing, presumably to make the device recognize the update.
(e.g. 22K561 was listed as 22K6561.) 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. 22K561 was listed as 22K6561.) The listings on this page use the build number displayed on the device.

[1]