9.1.0

The Switch 9.1.0 system update was released on December 4, 2019. 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

Official ALL change-log:

General system stability improvements to enhance the user's experience, including a solution for the following:
Resolved an issue where the color animation was not displaying correctly when attaching a Joy-Con controller to the Nintendo Switch console.

See the official China changelog for the China-specific changelog.

All files in RomFS were updated.

Secure Monitor was updated.

System register configuration now sets CPUACTLR_EL1.
- This sets CPUACTLR_EL1 to the same value as in Kernel_Loader#KernelLdr_MapInitialIdentityMapping, previously this code only configured CPUECTLR_EL1.

The following was updated:

All applets.
Sysmodules: bcat, friends, nifm, bsdsockets, hid, wlan, ldn, account, ns, nfc, am, nim, erpt, creport, ro, migration, olsc, and ngct.
SystemData (besides the sysver SystemData): ErrorMessage, BrowserDll, Help, SharedFont, LocalNews, Eula, FirmwareDebugSettings, all BootImagePackages, PlatformConfigIcosa, PlatformConfigCopper, PlatformConfigHoag, PlatformConfigIcosaMariko, and NgWordT.

See Services_API for the new lp2p:m service.

NPDM changes:

migration: Now has access to srepo:u.
The following now have access to the new lp2p:m service: qlaunch, LibraryAppletCabinet, LibraryAppletController, LibraryAppletNetConnect, LibraryAppletPlayerSelect, LibraryAppletMiiEdit, all web-applets except for LibraryAppletOfflineWeb, OverlayApplet, and LibraryAppletMyPage.