IOS history

From WiiBrew
Jump to navigation Jump to search

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).

Stubs

As of late 2008, Nintendo has been replacing some versions of IOS with small non-functional stub IOSes. This is so that they do not need to port security fixes to unused IOS slots, or in some cases, prevent private IOSes from being leaked and installed for older exploits, as ES refuses to install a title if an already-installed copy has a higher version number. Such IOSes have been marked as Mothballed.

A few IOSes above slot 200 were also stubbed in the 4.2 update, namely those commonly used by pirates. Nintendo's intentions are unclear, but they seem to have been attempting to overwrite the cIOS. However, this was trivially bypassed with version 65535 (most stubs, including the anti-cIOS ones, use version 65280). These IOSes have been marked as Preventative.

Version Table

Highlighted versions are not available on NUS.

IOS Number Minor(s) Version Number(s) Notes NUS Availability Status
IOS2 (System Menu) 0.0, 0.1, 0.33, 0.64, 0.66, 0.97, 0.128, 0.130, 0.162, 0.192, 0.193, 0.194, 0.224, 0.225, 0.226, 1.0, 1.1, 1.2, 1.32, 1.33, 1.34, 1.70, 1.96, 1.97, 1.98, 1.128, 1.129, 1.130, 1.134, 1.160, 1.161, 1.162, 1.192, 1.193, 1.194, 1.198, 1.224, 1.225, 1.226, 1.230, 2.0, 2.1, 2.2, 2.6 v0, v1, v33, v64, v66, v97, v128, v130, v162, v192, v193, v194, v224, v225, v226, v256, v257, v258, v288, v289, v290, v326, v352, v353, v354, v384, v385, v386, v390, v416, v417, v418, v448, v449, v450, v454, v480, v481, v482, v486, v512, v513, v514, v518 The title ID used by the System Menu is what IOS2 would be, so the System Menu is in the IOS2 slot. Note that this is the only time a non-ARM binary is placed in an IOS slot. Switching to this slot loads the System Menu IOS. v97, v128, v130, v162, v192, v193, v194, v224, v225, v226, v256, v257, v258, v288, v289, v290, v352, v353, v354, v384, v385, v386, v390, v416, v417, v418, v448, v449, v450, v454, v480, v481, v482, v486, v512, v513, v514, v518 Used for non-IOS purposes
IOS3 255.0 v65280 IOS3 is found as a stub on RVL-CPU-30 consoles, and appears to be used by newer versions of the 122E disc. The version number used by 122E is unknown. Unavailable Mothballed
IOS4 0.1, 0.3, 1.3, 255.0 v1, v3, v259, v65280 Previous versions only had minimal drivers (lacking KD, WL, WD, SSL), and were used during manufacturing. v3's timestamp is Aug 10, 2006; it was used by the Prelaunch System Menu present on pre-launch kiosk Wiis that shipped without a full System Menu. v259 is a stub found on some Korean Wiis. v1's existence is known through remnants in the Startup Disc NAND. v65280 is a stub; at one point, v3 was on CDN, likely by accident, but it was replaced with the stub version. v65280 Mothballed
IOS5 255.0 v65280 The IOS5 going around the internet is a modded version of IOS21 and is not real, the legit IOS5 will probably never be seen. An IOS with the same title ID exists as a stub on some Wiis, probably for repair discs, much like IOS16 Unavailable Mothballed
IOS9 0.1, 2.1, 2.4, 2.6, 2.8, 2.9, 3,10, 4.10, 5.10 v1, v513, v516, v518, v520, v521, v778, v1034, v1290 Has only one LED pattern: blinking. Used by System Menu 1.0 and launch games. v513 is a lost pre-release version. Version 1's internal timestamp is Aug 22 2006 13:46:28. v518 was at some point found on Korean Wiis. v520, v521, v778, v1034 Active
IOS10 ?, 3.0 ?, v768 First stub IOS. Origin of the shared contents used by all subsequent stub/mothballed IOSes. Used as a System Menu IOS on devkits and used by the Japanese version of System Menu 1.0. v768 Mothballed
IOS11 0.10, 1.0 v10, v256 Internal timestamp says Nov 14 2006 16:26:01. Used by System Menu 2.0 and 2.1. v10, v256 Mothballed
IOS12 0.6, 0.11, 0.12, 1.13, 2.13, 2.14, 3.14 v6, v11, v12, v269, v525, v526, v782 This IOS has an internal date of June 4, 2006; this would make it the earliest known IOS, however it appears that this is merely when a related source tree (possibly not even for this specific IOS) was created, not the actual build date of the binary for any publicly released version of this IOS. v6, v11, v12, v269, v525, v526 Active
IOS13 0.10, 0.15, 0.16, 1.11, 4.7, 4.8, 5.8 v10, v15, v16, v273, v1031, v1032, v1288 Used by the "All Regions" titles 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, 4.8, 5.8 v257, v262, v263, v520, v1031, v1032, v1288 v262, v263, v520, v1031, v1032 Active
IOS15 1.1, 1.2, 1.3, 1.4, 1.9, 1.10, 2.11, 4.7, 4.8, 5.8 v257, v258, v259, v260, v265, v266, v523, v1031, v1032, v1288 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 by the 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 2 days after its original posting for unknown reasons. The System Menu 4.1 update for Korea added it back, along with stubbing IOS52. v512 Mothballed
IOS17 2.0, 2.5, 2.6, 3.7, 4.7, 4.8, 5.8 v512, v517, v518, v775, v1031, v1032, v1288 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, 2.3, 2.4, 2.5, 2.10, 2.13, 3.14, 4.14, 4.15, 5.15 v514, v515, v516, v517, v522, v525, v782, v1038, v1039, v1295 Contains NAND BOOT PROGRAM. Most debugging messages are removed. Most commonly used for third-party titles. v514, v515, v516, v517, v522, v525, v782, v1038, v1039 Active
IOS22 3.4, 3.9, 3.12, 4.13, 5.13, 5.14, 6.14 v772, v777, v780, v1037, v1293, v1294, v1550 v777, v780, v1037, v1293, v1294 Active
IOS28 5.8, 5.12, 5.13, 6.14, 7.14, 7.15, 8.15 v1288, v1292, v1293, v1550, v1806, v1807, v2063 Starting with IOS28, firmware got 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 System Menu 3.0, 3.1, 3.2 and 3.3. v1037, v1039, v1040, v2576, v2816 Mothballed
IOS31 4.13, 4.15, 4.16, 10.16, 12.16, 12.20, 13.21, 14.23, 14.24, 15.24 v1037, v1039, v1040, v2576, v3088, v3092, v3349, v3607, v3608, v3864 Used by regional titles for the News and Weather Channels. v1037, v1039, v1040, v2576, v3088, v3092, v3349, v3607, v3608 Active
IOS33 4.16, 11.14, 11.16, 12.19, 14.23, 14.24, 15.24 v1040, v2832, v2834, v3091, v3607, v3608, v3864 v1040, v2832, v2834, v3091, v3607, v3608 Active
IOS34 4.15, 12.15, 12.19, 13.20, 14.23, 14.24, 15.24 v1039, v3087, v3091, v3348, v3607, v3608, v3864 v1039, v3087, v3091, v3348, v3607, v3608 Active
IOS35 4.16, 12.16, 12.20, 13.21, 14.23, 14.24, 15.24 v1040, v3088, v3092, v3349, v3607, v3608, v3864 v1040, v3088, v3092, v3349, v3607, v3608 Active
IOS36 4.18, 12.18, 12.22, 13.23, 14.23, 14.24, 15.24 v1042, v3090, v3094, v3351, v3607, v3608, v3864 Used by many games/titles. A lot of Homebrew used to rely on this IOS. v1042, v3090, v3094, v3351, v3607, v3608 Active
IOS37 8.22, 14.25, 14.28, 15.29 22.30, 22.31, 23.31 v2070, v3609, v3612, v3869, v5662, v5663, v5919 First IOS to fix the signature-checking function bug. v2070, v3609, v3612, v3869, v5662, v5663 Active
IOS38 14.25, 14.26, 15.27, 16.27, 16.28, 17.28 v3609, v3610, v3867, v4123, v4124, v4380 Used by Animal Crossing: City Folk (non-Korean). v3610, v3867, v4123, v4124 Active
IOS40 9.17, 11.19, 12.0 v2321, v2835, v3072 Only used on Korean Wiis by System Menu 3.3K. v3072 is a stub. v3072 Mothballed
IOS41 9.16, 11.19, 12.19, 13.20, 14.22, 14.23, 15.23 v2320, v2835, v3091, v3348, v3606, v3607, v3863 Used in Korean system. v2835, v3091, v3348, v3606, v3607 Active
IOS43 9.16, 11.19, 12.19, 13.20, 14.22, 14.23, 15.23 v2320, v2835, v3091, v3348, v3606, v3607, v3863 Used in Korean system. v2835, v3091, v3348, v3606, v3607 Active
IOS45 9.16, 11.9, 12.19, 13.20, 14.22, 14.23, 15.23 v2320, v2835, v3091, v3348, v3606, v3607, v3863 Used in Korean system. v2835, v3091, v3348, v3606, v3607 Active
IOS46 9.18, 11.21, 12.21, 13.22, 14.22, 14.23, 15.23 v2322, v2837, v3093, v3350, v3606, v3607, v3863 Used by Korean "Mario Kart Wii". Present in "Need for Speed: Undercover" (Korean) and in "Shin Chuuka Taisen: Michael to Meimei no Bouken" (Korean). v2837, v3093, v3350, v3606, v3607 Active
IOS48 16.27, 16.28, 17.28 v4123, v4124, v4380 Used by Korean "Animal Crossing: City Folk". 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 (exclusive to Korean Wiis). v5661, v5888 Mothballed
IOS53 16.17, 20.29, 21.30, 22.30, 22.31, 23.31 v4113, v5149, v5406, v5662, v5663, v5919 v4113, v5149, v5406, v5662, v5663 Active
IOS55 18.25, 20.29, 21.30, 22.30, 22.31, 23.31 v4633, v5149, v5406, v5662, v5663, v5919 Seems to have changes in the DI Module. v4633, v5149, v5406, v5662, v5663 Active
IOS56 19.26, 20.26, 21.29, 22.29, 22.30, 23.30 v4890, v5146, v5405, v5661, v5662, v5918 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, 22.29, 23.30, 23.31, 24.31 v5404, v5661, v5918, v5919, v6175 Contains new/updated modules "OHCI0, USB, USB_HID, USB_HUB, USB_MSC, USB_VEN, ETH". v5404, v5661, v5918, v5919 Active
IOS58 23.30, 24.31, 24.32, 25.32 v5918, v6175, v6176, v6432 Comes with the game "Your Shape" to allow the USB camera to work. First and only IOS to support USB 2.0. v6175, v6176 Active
IOS59 26.33, 28.33, 34.33, 36.33 v6689, v7201, v8737, v9249 Used by titles that require WFS functionality (Dragon Quest X and the USB Repair Channel). v8737, v9249 Active
IOS60 24.30, 25.0 v6174, v6400 Used by System Menu 4.0 and System Menu 4.1. First IOS to support SDHC. v6174, v6400 Mothballed
IOS61 19.26, 21.29, 22.29, 22.30, 23.30 v4890, v5405, v5661, v5662, v5918 Used by the Wii Shop Channel update that came with System Menu 4.0, 4.1 and 4.2. Also used by Photo Channel 1.1b. v5918 is the only IOS version exclusive to newer RVL-101 units, as IOS61 is missing on the vWii. v4890, v5405, v5661, v5662 Active
IOS62 25.30 v6430 Used by the Wii U Transfer Tool, to allow it to change its UID (this version specifically whitelists that). The vWii versions (not listed here) have different whitelists. v6430 Active
IOS70 26.31, 27.00 v6687, v6912 Used by System Menu 4.2. v6687, v6912 Mothballed
IOS80 27.31, 27.32, 28.32 v6943, v6944, v7200 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 3.4 as a quick fix for PatchMii. It's just a copy of IOS9. As Nintendo released new versions of IOS9 this title also received updates.-ex v3 of IOS254 corresponds to IOS9 v521. v260 and v65280 are stubs. v2, v3, v260, v65280 Preventative
IOS256 (BC) 0.0, 0.1, 0.2, 0.4, 0.5, 0.6 v0, v1, v2, v4, v5, v6 IOS slot 256 is used for BC, which is responsible for loading MIOS. v2, v4, v5, v6 Active
IOS257 (MIOS) 0.0, 0.1, 0.4, 0.5, 0.8, 0.9, 0.10 v0, v1, v4, v5, v8, v9, v10 IOS slot 257 is used for MIOS, the IOS used in GameCube mode. Its main purpose is to allow the PowerPC to directly access GameCube hardware. Note that the MIOS binary contains both ARM and PowerPC code. v4, v5, v8, v9, v10 Active