The document usually circulated with the filename Mortal.Kombat.11.SWITCH.NSP.DLC.Update.1.0.26.pdf (or similar). It was a deep dive into the game's executable.

Update 1.0.26 is the final patch released for Mortal Kombat 11 on the Nintendo Switch. While PlayStation, Xbox, and PC users received "Ultimate Edition" updates through version 1.11, the Switch’s unique architecture required a separate numbering system. Patch 1.0.26 brings the Switch version fully in line with all previous balance changes, quality-of-life improvements, and—most importantly—all post-launch DLC characters.

This update is mandatory for anyone wishing to use the complete roster, including the Kombat Pack 1, Kombat Pack 2, and the Ultimate Add-On content.

Disclaimer: This information is for educational purposes related to legitimate backups of games you own. Piracy is illegal. Installing custom firmware (CFW) voids your warranty.

Assuming you have a modded Switch running Atmosphere or SX OS (legacy), follow these steps:

The number one reason users seek out the Mortal Kombat 11 SWITCH NSP DLC Update 1.0.26 is access to the full roster. This update unlocks compatibility for the following 12 post-launch kombatants (in addition to the base 25 fighters):

Disclaimer: This information is for educational discussion regarding backup preservation. Installing unauthorized NSPs requires a modded Switch and bypasses Nintendo’s security. Always own a legal copy of the game.

Assuming you have Atmosphere 1.5.0+ and sigpatches installed: