Here's translated from Nintendo Japan website:

Nintendo Switch 2 System Update Version 23.0.0 — Full Patch Notes Released: September 10, 2026

GameChat

Chats you've previously joined now appear in the list of joinable chats

You can now start a new chat and join without selecting any friends

A "screen size" button has been added to the menu shown when pressing the C button during a chat

Virtual Game Cards

Added "Settings" to the Virtual Game Cards list screen

You can check the registration status of consoles using your virtual game cards

TV Mode

VRR output is now supported in TV mode

When both the software and TV support it, video is output at a refresh rate matching the game's processing

Note: Enabling this requires a Nintendo Switch 2 dock update

Full Transfer (Switch 2 → Switch 2)

You can now transfer save data, screenshots, and other data wholesale from your current Switch 2 to a new Switch 2 console

System Settings

Accessibility → Voice Reading

Added Portuguese (Brazil) voice reading

Accessibility → GameChat voice⇔text conversion

Added Portuguese (Brazil) to the text⇒speech languages

Audio → TV Sound

Settings are now saved individually for each connected

TV Display → Dock Output

Info Renamed to "Video Output Info"

You can now view in detail which video signals your connected TV supports

Display

Added a "VRR Settings" option

Mii

Added a feature to share your Mii as a QR code with other users

Sleep → Wake-from-sleep sound when playing on TV

You can now preview the sound immediately when adjusting its volume

System → Switch Software Behavior Mode

Added "Handheld Mode Boost quick-toggle in Quick Settings"

When ON, you can toggle Handheld Mode Boost from quick settings (hold HOME button)

System

Added a "Full Transfer to Nintendo Switch 2" option

Online License Fallback

If a virtual game card can't be moved from another console when launching software, you can now temporarily play via an online license

If the other console is offline and the card can't be moved, a "Play with Online License" button appears

Only the purchaser of the software can play via online license

Mii Editor BGM now plays on the Mii editing screen

Use the "BGM Settings" button (top-left) to switch or stop it

+You can now use other controllers even while Joy-Con 2 are attached to the console Play Activity Play time is now combined when the same software is played on multiple consoles Totals appear sequentially, starting with software played after the update

Fixed various issues and improved system stability

Caution: Only update the console in its normal state. Modifying the console or using unsupported accessories/software may render it inoperable after updating. Such consoles are not covered by warranty or repairs.

Online License was already a thing you could enable in settings? I guess they just added a button when launching a game for people who haven't enabled it. Still sad about the switch to the VC system and no longer being able to have two consoles online with a single digital copy of a game.

Wonder what technical issues they ran into with docked VRR, good that it's now sorted.

Finally, just updated mine and will give it a go tonight with Onimusha's unlocked mode. (Not entirely sure if the game supports it though, tbh)

VRR is a feature that shouldn't need per-game support so not sure why Nintendo are saying the software needs to support it. It should be system wide and have an effect whenever a game drops frames or is unlocked fps.

Though DF said at launch there seemed to be a problem with it not working on No Man Sky or Cyberpunk (handheld). Their testing at launch indicated that Low Framerate Compensation wasn't functioning on all games for some reason so when a game dropped below 40fps VRR just didn't work. Dunno if that was ever addressed in a system update.

https://www.digitalfoundry.net/articles/digitalfoundry-2025-nintendo-switch-2-the-digital-foundry-hardware-review

If it doesn't just work universally now, that's something Nintendo should address, because that's how it's supposed to work. VRR does not need per-game support.