IOS history
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This page is intended to track changes in IOS ( the operating system that runs on Starlet) such as: added features, bug fixes, etc. It will also cover what different minor versions are known to exist.
Overview
The Title ID of the IOSes follow this convention "00000001-000000xx" where xx is the IOS number in hexadecimal. The "IOS number" is best thought of as a "Major" version number for the firmware, and probably corresponds to a specific version of Nintendo's (proprietary) SDK. For example, the version of the SDK used to compile Zelda: Twilight Princess probably was tailored to run on IOS9.
In general, IOSx0 is used for the system menu (IOS20, IOS30, IOS40, IOS50, IOS60, IOS70). IOSx1 seems to be used for Nintendo channels (e.g. IOS31, IOS51, IOS61).
Each IOS has a 16-bit version number in its TMD. This version number is seen in decimal form in the filenames of IOS WADs on update partition (e.g. "IOS9-64-v516.wad" for version 516 (decimal)). Converted to hex, that 516 becomes 0x0204, and can be read as "2.4" -- IOS9, version 2.4.
As a rule, an existing IOS will never have new features added to it, to protect binary compatibility. This means that any updates for existing IOSes are only meant to fix bugs (generally, security bugs).
Future of IOS
As of late 2008, Nintendo has been replacing some versions of IOS with small non-functional "place holder" IOSes. This is to prevent the reuse of the IOS "slot" for software other than official Nintendo Software which utilized that IOS number. Nintendo can come back at a later date if necessary and "reuse" an IOS slot at their own discretion by simply increasing the version number of the title and replacing it with a functional IOS once again. These IOSes have been marked as Mothballed on the table denoting that they could quite possibly be reused in the future if Nintendo decides to do so.
Version Table
| IOS Number | Minor(s) | Version Number(s) | Notes | NUS Availability | Status |
|---|---|---|---|---|---|
| IOS3 | 255.0 | v65280 | Non-functional "stub" | Unavailable | Mothballed |
| IOS4 | 0.3, 1.3, 255.0 | v3, v259, v65280 | Previous versions only had minimal drivers (lacking KD, WL, WD, SSL), and were probably used during manufacturing and/or updating. 1st Version Timestamp is Aug 10, 2006. Replaced by a stub. Version 3 was used by Prelaunch System Menu present on Pre-Launch Kiosk Wiis that shipped without a full System Menu. | v65280 | Mothballed |
| IOS9 | 0.1 2.4, 2.6, 2.8, 2.9, 4.10 | v1, v516, v518, v520, v521, v778, v1034 | Has only one LED pattern: blinking. First "normal" IOS version. Used by System Menu 1.0. Version 1 internal timestamp Aug 22 2006 13:46:28. | v520, v521, v778, v1034 | Active |
| IOS10 | 3.0 | v768 | First "stub" IOS. Origin of the shared contents used by all subsequent "stub / mothballed" ioses. | v768 | Mothballed |
| IOS11 | 0.10, v1.0 | v10, v256 | Internal timestamp says Nov 14 2006 16:26:01. Used by System Menu 2.0. | v10, v256 | Mothballed |
| IOS12 | 0.6, 0.11, 0.12, 1.13, 2.13 | v6, v11, v12, v269, v525, v526 | Earliest Known IOS: June 4, 2006. | v6, v11, v12, v269, v525, v526 | Active |
| IOS13 | 0.10, 0.15, 0.16, 1.11, 4.7 | v10, v15, v16, v273, v1031, v1032 | Used by the "All Regions" title of News, Weather & Photo 1.0 Channels | v10, v15, v16, v273, v1031, v1032 | Active |
| IOS14 | 1.1, 1.6, 1.7, 2.8, 4.7 | v257, v262, v263, v520, v1031, v1032 | v262, v263, v520, v1031, v1032 | Active | |
| IOS15 | 1.1, 1.2, 1.3, 1.4, 1.9, 1.10, 2.11, 4.7 | v257, v258, v259, v260, v265, v266, v523, v1031, v1032 | Contains NAND BOOT PROGRAM (AKA NANDloader) -- this was probably accidental | v257, v258, v259, v260, v265, v266, v523, v1031, v1032 | Active |
| IOS16 | 1.1, 2.0 | v257, v512 | Initially used for Wii Backup Disc. The version on the Wii Backup Disc was infamously used by pirates, until System Menu 4.0 mothballed this IOS as of v512. The mothballed stub version was retracted from the Korean SOAP server not long after its posting for unknown reasons. As of the System Menu 4.1 update for Korea, it is back. | v512 | Mothballed |
| IOS17 | 2.0, 2.5, 2.6, 4.7 | v512, v517, v518, v775, v1031, v1032 | v512, v517, v518, v775, v1031, v1032 | Active | |
| IOS20 | 0.12, 1.0 | v12, v256 | Feb 22 2007 04:25:59 Used by System Menu 2.2. | v12, v256 | Mothballed |
| IOS21 | 2.2, 2.5, 2.6, 2.7, 2.10, 2.13, 4.14 | v514, v515, v516, v517, v522, v525, v782, v1038, v1039 | Contains NAND BOOT PROGRAM. Most debugging messages are removed. Most common for third-party titles. | v514, v515, v516, v517, v522, v525, v782, v1038, v1039 | Active |
| IOS22 | 3.4, 3.9, 3.10, 4.13, 5.13 | v772, v777, v780, v1037, v1293, v1294 | v777, v780, v1037, v1293, v1294 | Active | |
| IOS28 | 5.8, 5.12, 5.13, 6.14, 7.14 | v1288, v1292, v1293, v1550, v1806, v1807 | Starting with IOS28, firmware is divided into 15 modules. Added some ioctls to /dev/es. | v1292, v1293, v1550, v1806, v1807 | Active |
| IOS30 | 4.13, 4.15, 4.16, 10.16, 11.0 | v1037, v1039, v1040, v2576, v2816 | Added USB Keyboard support. Used by many previous versions of the System Menu. | v1037, v1039, v1040, v2576, v2816 | Mothballed |
| IOS31 | 4.13, 4.15, 4.16, 10.16, 12.16, 12.20, 13.21, 14.23 | v1037, v1039, v1040, v2576, v3088, v3092, v3349, v3607, v3608 | Used by News/Weather/Photo 1.1 channel | v1037, v1039, v1040, v2576, v3088, v3092, v3349, v3607, v3608 | Active |
| IOS33 | 4.16, 11.14, 11.16, 12.19, 14.23 | v1040, v2832, v2834, v3091, v3607, v3608 | v1040, v2832, v2834, v3091, v3607, v3608 | Active | |
| IOS34 | 4.15, 12.15, 12.19, 13.20, 14.23 | v1039, v3087, v3091, v3348, v3607, v3608 | v1039, v3087, v3091, v3348, v3607, v3608 | Active | |
| IOS35 | 4.16, 12.16, 12.20, 13.21, 14.23 | v1040, v3088, v3092, v3349, v3607, v3608 | v1040, v3088, v3092, v3349, v3607, v3608 | Active | |
| IOS36 | 4.18, 12.18, 12.22, 13.23, 14.23 | v1042, v3090, v3094, v3351, v3607, v3608 | v1042, v3090, v3094, v3351, v3607, v3608 | Active | |
| IOS37 | 8.22, 14.25, 14.28, 22.30 | v2070, v3609, v3612, v3869, v5662, v5663 | First to fix the signature-checking function bug | v2070, v3609, v3612, v3869, v5662, v5663 | Active |
| IOS38 | 14.19, 14.20, 16.27 | v3609, v3610, v3867, v4123, v4124 | v3610, v3867, v4123, v4124 | Active | |
| IOS40 | 9.17, 11.19, 12.0 | v2321, v2835, v3072 | Present in Korean system. | v3072 | Mothballed |
| IOS41 | 9.16, 11.19, 12.19, 13.20, 14.22 | v2320, v2835, v3091, v3348, v3606, v3607 | Present in Korean system. | v2835, v3091, v3348, v3606, v3607 | Active |
| IOS43 | 9.16, 11.19, 12.19, 13.20, 14.22 | v2320, v2835, v3091, v3348, v3606, v3607 | Present in Korean system. | v2835, v3091, v3348, v3606, v3607 | Active |
| IOS45 | 9.16, 11.9, 12.19, 13.20, 14.22 | v2320, v2835, v3091, v3348, v3606, v3607 | Present in Korean system. | v2835, v3091, v3348, v3606, v3607 | Active |
| IOS46 | 9.18, 11.21, 12.21, 13.22, 14.22 | v2322, v2837, v3093, v3350, v3606, v3607 | Present in "Need for Speed Undercover" and in "Shin Chuukadaisen" Korean. | v2837, v3093, v3350, v3606, v3607 | Active |
| IOS48 | 16.27 | v4123, v4124 | Bundled with System Menu 4.3K provides the same features as IOS38 but has a newer SDI module and an FFSP vs FFS module. | v4123, v4124 | Active |
| IOS50 | 19.25, 20.0 | v4889, v5120 | Came with the November 17, 2008 update. Used by System Menu 3.4. | v4889, v5120 | Mothballed |
| IOS51 | 18.25, 19.0 | v4633, v4864 | Used by a previous Shop Channel. Released at same time as fixes to remaining fakesigning bugs. | v4633, v4864 | Mothballed |
| IOS52 | 22.29, 23.0 | v5661, v5888 | Included with and used by System Menu 3.5 for Korean Wiis. | v5661, v5888 | Mothballed |
| IOS53 | 16.17, 20.29, 21.30, 22.30 | v4113, v5149, v5406, v5662, v5663 | v4113, v5149, v5406, v5662, v5663 | Active | |
| IOS55 | 18.25, 20.29, 21.30, 22.30, 22.31 | v4633, v5149, v5406, v5662, v5663 | Seems to have changes in the DI Module. | v4633, v5149, v5406, v5662, v5663 | Active |
| IOS56 | 19.26, 20.26, 21.29, 22.29 | v4890, v5146, v5405, v5661, v5662 | Used by the Wii Speak Channel 2.0 and some games. Used by the Wii Shop Channel update as of Sept. 7, 2010. | v4890, v5405, v5661, v5662 | Active |
| IOS57 | 21.28, 21.51, 22.29, 23.30 | v5404, v5661, v5918, v5919 | Contains new or updated modules "OHCI0 USB USB_HID USB_HUB USB_MSC USB_VEN ETH" | v5404, v5661, v5918, v5919 | Active |
| IOS58 | 23.30, 24.31 | v5918, v6175, v6176 | Comes with the game "Your Shape" to allow the USB camera to work. | v6175, v6176 | Active |
| IOS59 | v6688, v7207, v8737, v9249 | v8737, v9249 | Active | ||
| IOS60 | 24.30, 25.0 | v6174, v6400 | Used by System Menu 4.0 and System Menu 4.1 | v6174, v6400 | Mothballed |
| IOS61 | 19.26, 21.29, 22.29 | v4890, v5405, v5661, v5662 | Used by the Wii Shop Channel update that came with System Menu 4.0, 4.1 and 4.2 Also used by Photo Channel 1.1 v3+ | v4890, v5405, v5661, v5662 | Active |
| IOS62 | 25.30 | v6430 | Currently unused. | v6430 | Active |
| IOS70 | 26.31, 27.00 | v6687, v6912 | Used by System Menu 4.2 | v6687, v6912 | Mothballed |
| IOS80 | 27.31, 27.32 | v6943, v6944 | Used by System Menu 4.3 | v6943, v6944 | Active |
| IOS222 | 255.0 | v65280 | Piracy prevention. | v65280 | Preventative |
| IOS223 | 255.0 | v65280 | Piracy prevention. | v65280 | Preventative |
| IOS249 | 255.0 | v65280 | Piracy prevention. | v65280 | Preventative |
| IOS250 | 255.0 | v65280 | Piracy prevention. | v65280 | Preventative |
| IOS254 | 0.2, 0.3, 1.04, 255.0 | v2, v3, v260, v65280 | Distributed along with all System Menus since System Menu 3.4 as a quick fix for PatchMii. It's just a copy of IOS9. As Nintendo releases new versions of IOS9 this title will also receive updates.-ex IOS9 v521 corresponds to v3 of IOS254. | v2, v3, v260, v65280 | Preventative |
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