View source for 4.0.0

The Switch 4.0.0 system update was released on October 18, 2017. This Switch update was released for the following regions: ALL.

Security flaws fixed: <fill this in manually later, see the updatedetails page from the ninupdates-report page(s) once available for now>.

==Change-log==
[http://en-americas-support.nintendo.com/app/answers/detail/a_id/22525/p/897 Official] ALL change-log:
* Added the following system functionality
* Capture video on select games
* To capture video, hold down the Capture Button during gameplay
* Up to maximum of the previous 30 seconds will be saved in the Album. You can trim the beginning and end of each clip, and post to Facebook and Twitter. 
* As of October 18th, 2017, this feature is compatible with The Legend of Zelda: Breath of the Wild, Mario Kart 8 Deluxe, ARMS, and Splatoon 2
* Select from 12 new Super Mario Odyssey and The Legend of Zelda: Breath of the Wild icons for your user
* To edit your user icon, head to your My Page on the top left of the Home Menu > Profile 
* Transfer user and save data to another system
* To transfer, head to System Settings > Users > Transfer Your User and Save Data
* Pre-purchase option on Nintendo eShop
* A pre-purchase option will be available for certain games. This option allows pre-load of the game to your system for quicker play when the game is released.
*  This feature will be supported by future game releases 
* News channel updates
* The news feed has been updated with a new look. 
*  Unfollowing a channel will remove that channel's content from the news feed and following the channel again will make it reappear.
* Match software version with a group of local users
* To create a group, head to the software's Options > Software Update > Match Version with Local Users
* Everyone's software will be updated to match the most recent version in the group
* All users must be on system menu version 4.0.0 or later to view and join a group 
* General system stability improvements to enhance the user's experience, including:
* Changed the specification which hid wireless networks using TKIP security from the network search results.  Wireless networks using TKIP security will now display in search results as a grayed-out selection instead of not being displayed
* The Nintendo Switch console supports WEP, WPA-PSK(AES), and WPA2-PSK(AES). If your router is using a different security type (e.g. WPA-PSK(TKIP)), you will need to change this security type within your router's settings.

==System Titles==
<fill this in (manually) later>

* ...
* 4 new sysmodules were added, and new FIRM-package title 010000000000081C was added.

==Keys==
All of these updated titles now use the new [[NCA_Format|NCA]] crypto for [[NCA|non-ncatype0]](all content except .cnmt content), except for all of the FIRM-packages including the new one(required for FIRM installation).

==See Also==
System update report(s):
* [https://yls8.mtheall.com/ninupdates/reports.php?date=10-18-17_08-05-13&sys=hac]