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{| class="wikitable sortable"
{| class="wikitable sortable"
! Version
! Version
+
! [[NUS]] post date
! Release date
! Release date
! Description
! Description
|-
|-
| [[1.0]]
| [[1.0]]
+
| N/A
| November 19, 2006
| November 19, 2006
| Launch set of titles. Contains [[boot2v2]], System Menu 1.0, [[IOS4]]v3, [[IOS9]]v516, [[BC]], [[MIOS]], [[Photo Channel]], [[Mii Channel]], [[Forecast Channel dummy]], and [[News Channel dummy]]. Some consoles shipped with a functioning [[Wii Shop Channel]], while others had a dummy version.
| Launch set of titles. Contains [[boot2v2]], System Menu 1.0, [[IOS4]]v3, [[IOS9]]v516, [[BC]], [[MIOS]], [[Photo Channel]], [[Mii Channel]], [[Forecast Channel dummy]], and [[News Channel dummy]]. Some consoles shipped with a functioning [[Wii Shop Channel]], while others had a dummy version.
|-
|-
| [[2.0]]
| [[2.0]]
+
| November 17/18, 2006
| November 19, 2006
| November 19, 2006
| Removed setup features intended for initial setup prior to formatting. Activated online features; added release IOSes ([[IOS11], [[IOS12]], [[IOS13]]). Updated BC and MIOS.
| Removed setup features intended for initial setup prior to formatting. Activated online features; added release IOSes ([[IOS11], [[IOS12]], [[IOS13]]). Updated BC and MIOS.
|-
|-
| [[2.0rev02]]
| [[2.0rev02]]
+
| November 17/18, 2006
| November 19, 2006
| November 19, 2006
| Installed a functional Wii Shop Channel on Wiis that didn’t have it; updated several channels to use IOS13. Changed Forecast Channel dummy and News Channel dummy to say "You cannot use this channel until service begins." Added [[EULA]], which the Wii Shop Channel now requires agreement to.
| Installed a functional Wii Shop Channel on Wiis that didn’t have it; updated several channels to use IOS13. Changed Forecast Channel dummy and News Channel dummy to say "You cannot use this channel until service begins." Added [[EULA]], which the Wii Shop Channel now requires agreement to.
|-
|-
| [[2.0rev03]]
| [[2.0rev03]]
+
| November 30, 2006
| November 30, 2006
| November 30, 2006
| Wii Shop Channel now uses HTTPS, and uses the newly released [[IOS15]].
| Wii Shop Channel now uses HTTPS, and uses the newly released [[IOS15]].
|-
|-
| [[2.0rev04]]
| [[2.0rev04]]
+
| December 19, 2006
| December 19, 2006
| December 19, 2006
| Released the [[Forecast Channel]]
| Released the [[Forecast Channel]]
|-
|-
| [[2.0rev05]]
| [[2.0rev05]]
+
| January 26, 2007
| January 26, 2007
| January 26, 2007
| Released the [[News Channel]]
| Released the [[News Channel]]
|-
|-
| [[2.1]]
| [[2.1]]
+
| January 10, 2007
| January 10, 2007
| January 10, 2007
| PAL-exclusive RGB-SCART fix.
| PAL-exclusive RGB-SCART fix.
|-
|-
| [[2.1rev02]]
| [[2.1rev02]]
+
| January 26, 2007
| January 26, 2007
| January 26, 2007
| Identical to 2.0rev05; released News Channel in PAL consoles.
| Identical to 2.0rev05; released News Channel in PAL consoles.
|-
|-
| [[2.2]]
| [[2.2]]
−
| April 11, 2007
+
| April 12, 2007
+
| April 11, 2007{{check}}
| Fixed some internet issues. Released [[IOS20]] and [[IOS21]].
| Fixed some internet issues. Released [[IOS20]] and [[IOS21]].
|-
|-
| [[3.0]]
| [[3.0]]
−
| August 6, 2007
+
| August 7, 2007
+
| August 6, 2007{{check}}
| Contains various minor updates such as a clock and using + and - to navigate the settings menu. Blocked the GameCube Action Replay with an updated [[MIOS]]. Released [[IOS30]] and [[IOS31]], which have the code needed for games to detect [[drivechip]]s and show [[error 001]]. Updated the [[Internet Channel]] using a [[NAND Boot Program]] update in IOS15 and IOS21. Added a switch to detect whether to use Photo Channel or Photo Channel 1.1 instead of displaying both.
| Contains various minor updates such as a clock and using + and - to navigate the settings menu. Blocked the GameCube Action Replay with an updated [[MIOS]]. Released [[IOS30]] and [[IOS31]], which have the code needed for games to detect [[drivechip]]s and show [[error 001]]. Updated the [[Internet Channel]] using a [[NAND Boot Program]] update in IOS15 and IOS21. Added a switch to detect whether to use Photo Channel or Photo Channel 1.1 instead of displaying both.
|-
|-
| [[3.0rev02]]
| [[3.0rev02]]
−
| August 10, 2007{{check}}
+
| August 13, 2007
+
| August 13, 2007
| Reverted the Internet Channel patch; updated IOS30 and IOS31.
| Reverted the Internet Channel patch; updated IOS30 and IOS31.
|-
|-
| [[3.1]]
| [[3.1]]
+
| October 10, 2007
| October 10, 2007
| October 10, 2007
| Added USB Keyboard support; added back the Internet Channel patch. Reverted setup back to a 1.0-like setup process to allow this menu to be preinstalled at the factory. Added [[IOS33]], [[IOS34]], and [[IOS35]], the first IOSes used by error 001 games.
| Added USB Keyboard support; added back the Internet Channel patch. Reverted setup back to a 1.0-like setup process to allow this menu to be preinstalled at the factory. Added [[IOS33]], [[IOS34]], and [[IOS35]], the first IOSes used by error 001 games.
|-
|-
| [[3.1rev02]]
| [[3.1rev02]]
+
| December 7, 2007
| December 10, 2007
| December 10, 2007
| Added [[Photo Channel 1.1]] and added the gift feature to the Wii Shop Channel.
| Added [[Photo Channel 1.1]] and added the gift feature to the Wii Shop Channel.
|-
|-
| [[3.2]]
| [[3.2]]
−
| February 25, 2008
+
| February 26, 2008
+
| February 25, 2008{{check}}
| The [[Disc Channel]] now says "Wii System Update" if an update is needed; something about slot LED blinking was also changed.
| The [[Disc Channel]] now says "Wii System Update" if an update is needed; something about slot LED blinking was also changed.
|-
|-
| [[3.2rev02]]
| [[3.2rev02]]
+
| March 20, 2008
| March 20, 2008
| March 20, 2008
| The Wii Shop Channel now supports WiiWare.
| The Wii Shop Channel now supports WiiWare.
|-
|-
| [[3.2rev03]]
| [[3.2rev03]]
+
| March 21, 2008
| March 22, 2008
| March 22, 2008
| Added [[IOS37]], used by early WiiWare games. This IOS fixed the [[signing bug]], but this did not have much of an impact.
| Added [[IOS37]], used by early WiiWare games. This IOS fixed the [[signing bug]], but this did not have much of an impact.
|-
|-
| [[3.2rev04]]
| [[3.2rev04]]
+
| June 13, 2008
| June 16, 2008
| June 16, 2008
| Released an updated IOS30 with the signing bug fixed.
| Released an updated IOS30 with the signing bug fixed.
|-
|-
| [[3.3]]
| [[3.3]]
+
| June 13, 2008
| June 16, 2008
| June 16, 2008
| Copied the IOS30 signing bug fix to IOS31; fixed the signing bug in BC. Fixed the [[Tweezer Attack]] and attempted to fix the [[Twilight Hack]].
| Copied the IOS30 signing bug fix to IOS31; fixed the signing bug in BC. Fixed the [[Tweezer Attack]] and attempted to fix the [[Twilight Hack]].
|-
|-
| [[3.3rev02]]
| [[3.3rev02]]
+
| July 17, 2008
| July 22, 2008
| July 22, 2008
−
| Updated Photo Channel and Photo Channel 1.2 for a Japan-exclusive service
+
| Updated Photo Channel and Photo Channel 1.1 for a Japan-exclusive service
|-
|-
| [[3.3rev03]]
| [[3.3rev03]]
+
| October 22, 2008
| October 23, 2008
| October 23, 2008
| Stubbed IOS4, [[IOS10]], IOS11, and IOS20. Fixed signing bug, [[:/dev/flash]] hack, and ES_Identify in all IOSes except [[IOS16]], IOS30, IOS31, IOS37, and [[IOS254]]. Released [[IOS51]] with a new Wii Shop Channel.
| Stubbed IOS4, [[IOS10]], IOS11, and IOS20. Fixed signing bug, [[:/dev/flash]] hack, and ES_Identify in all IOSes except [[IOS16]], IOS30, IOS31, IOS37, and [[IOS254]]. Released [[IOS51]] with a new Wii Shop Channel.
|-
|-
| [[3.4]]
| [[3.4]]
+
| November 17, 2008
| November 17, 2008
| November 17, 2008
| System Menu now uses [[IOS50]]; IOS30 has been stubbed. Fixed ES_Identify and /dev/flash hack in IOS31, IOS37, and IOS254. IOS37 now has new ES functions. Supposedly has disc and SD reading improvements as well. Second attempt to fix the Twilight Hack. Mii Channel now has USB Keyboard support.
| System Menu now uses [[IOS50]]; IOS30 has been stubbed. Fixed ES_Identify and /dev/flash hack in IOS31, IOS37, and IOS254. IOS37 now has new ES functions. Supposedly has disc and SD reading improvements as well. Second attempt to fix the Twilight Hack. Mii Channel now has USB Keyboard support.
|-
|-
| [[3.4rev02]]
| [[3.4rev02]]
+
| March 25, 2009
| March 25, 2009
| March 25, 2009
| Fixed [[STM Release Exploit]] in all IOSes. Stubbed IOS16; released [[IOS60]] and [[IOS61]].
| Fixed [[STM Release Exploit]] in all IOSes. Stubbed IOS16; released [[IOS60]] and [[IOS61]].
|-
|-
| [[3.5]]
| [[3.5]]
+
| March 2, 2009
| March 3, 2009
| March 3, 2009
| Korean equivalent of 3.4, and the first update to Korean consoles. Stubbed IOS4 and [[IOS40]]. System Menu now uses [[IOS52]]. Released IOS51.
| Korean equivalent of 3.4, and the first update to Korean consoles. Stubbed IOS4 and [[IOS40]]. System Menu now uses [[IOS52]]. Released IOS51.
|-
|-
| [[3.5rev02]]
| [[3.5rev02]]
+
| March 25, 2009
| March 25, 2009
| March 25, 2009
| Korean equivalent of 3.4rev02.
| Korean equivalent of 3.4rev02.
|-
|-
| [[3.5rev03]]
| [[3.5rev03]]
+
| March 25, 2009
| March 25, 2009
| March 25, 2009
| Korean equivalent of 4.0; System Menu was never released in Korea.
| Korean equivalent of 4.0; System Menu was never released in Korea.
|-
|-
| [[4.0]]
| [[4.0]]
+
| March 25, 2009
| March 25, 2009
| March 25, 2009
| Fixed the Twilight Hack. Added an SD card menu, as well as SDHC support in system channels. Made various improvements to initial setup. Rephrased the warning about homebrew when updating. Removed unused symbols from main.sel.
| Fixed the Twilight Hack. Added an SD card menu, as well as SDHC support in system channels. Made various improvements to initial setup. Rephrased the warning about homebrew when updating. Removed unused symbols from main.sel.
|-
|-
| [[4.1]]
| [[4.1]]
−
| July 15, 2009
+
| July 16, 2009
+
| July 15, 2009{{check}}
| Fixed a bug where using the SD Card Menu would force users to rewatch the MotionPlus introduction. Released Photo Channel 1.1 in Korea.
| Fixed a bug where using the SD Card Menu would force users to rewatch the MotionPlus introduction. Released Photo Channel 1.1 in Korea.
|-
|-
| [[4.1rev02K]]
| [[4.1rev02K]]
+
| July 30, 2009
| July 30, 2009
| July 30, 2009
| Korea only; stubbed IOS16 and IOS52.
| Korea only; stubbed IOS16 and IOS52.
|-
|-
| [[4.2]]
| [[4.2]]
+
| September 29, 2009
| September 30, 2009
| September 30, 2009
| Updated to [[boot2v4]]; contains an unknown batch IOS update, including BC and MIOS. System Menu now uses [[IOS70]]. Attempted to fix [[Bannerbomb]]. Added code to delete the [[Homebrew Channel]] and [[DVDX]] on every boot.
| Updated to [[boot2v4]]; contains an unknown batch IOS update, including BC and MIOS. System Menu now uses [[IOS70]]. Attempted to fix [[Bannerbomb]]. Added code to delete the [[Homebrew Channel]] and [[DVDX]] on every boot.
|-
|-
| [[4.2rev02]]
| [[4.2rev02]]
+
| September 29, 2009
| September 30, 2009
| September 30, 2009
| Stubbed IOS60.
| Stubbed IOS60.
|-
|-
| [[4.2rev03]]
| [[4.2rev03]]
+
| October 20, 2009
| October 21, 2009
| October 21, 2009
| Updated the Wii Shop Channel to add the "One Free Title" button for users that purchased the Internet Channel.
| Updated the Wii Shop Channel to add the "One Free Title" button for users that purchased the Internet Channel.
|-
|-
| [[4.2rev04]]
| [[4.2rev04]]
+
| June 21, 2010
| June 22, 2010
| June 22, 2010
| Batch IOS update to fix the [[HackMii Installer]] exploit and the [[:/tmp/title.tmd]] bug. Released [[IOS80]]. IOS9 now has a build tag. Removed the NAND Boot Program from IOS15.
| Batch IOS update to fix the [[HackMii Installer]] exploit and the [[:/tmp/title.tmd]] bug. Released [[IOS80]]. IOS9 now has a build tag. Removed the NAND Boot Program from IOS15.
|-
|-
| [[4.3]]
| [[4.3]]
+
| June 21, 2010
| June 22, 2010
| June 22, 2010
| Successfully fixed Bannerbomb. Updated the title deletion code for the new title IDs used by homebrew. Initial setup date now defaults to 1/1/2010 instead of 1/1/2009.
| Successfully fixed Bannerbomb. Updated the title deletion code for the new title IDs used by homebrew. Initial setup date now defaults to 1/1/2010 instead of 1/1/2009.
|-
|-
| [[4.3rev02]]
| [[4.3rev02]]
+
| June 22, 2010
| June 22, 2010
| June 22, 2010
| Stubbed IOS70 and IOS254.
| Stubbed IOS70 and IOS254.
|-
|-
| [[4.3rev03]]
| [[4.3rev03]]
+
| September 7, 2010
| September 8, 2010
| September 8, 2010
| Updated WL in all IOSes except IOS9. Korean IOSes have now been released in all regions. Wii Shop Channel now uses IOS56 instead of IOS61.
| Updated WL in all IOSes except IOS9. Korean IOSes have now been released in all regions. Wii Shop Channel now uses IOS56 instead of IOS61.
|-
|-
| [[4.3rev04]]
| [[4.3rev04]]
−
| November 6, 2012
+
| November 7, 2012
+
| November 6, 2012{{check}}
| Added [[IOS62]] for [[Wii U Transfer Tool]] support.
| Added [[IOS62]] for [[Wii U Transfer Tool]] support.
|-
|-
| [[4.3rev05J]]
| [[4.3rev05J]]
+
| November 26, 2013
| November 26, 2013
| November 26, 2013
| Updated [[IOS59]] for a new Dragon Quest X update.
| Updated [[IOS59]] for a new Dragon Quest X update.
|-
|-
| [[4.3rev06J]]
| [[4.3rev06J]]
+
| February 25, 2014
| February 25, 2014
| February 25, 2014
| Updated IOS59 for [[USB Flash Optimization]] support.
| Updated IOS59 for [[USB Flash Optimization]] support.