Atmosphère 1.12.0: firmware 23.0.1 is supported, you can update

2026 update: Atmosphère 1.12.1 fixes themes, DNS redirection and module memory on firmware 23; read on in our news story Atmosphère 1.12.1: themes, DNS and sysmodules fixed on firmware 23.

In September we told you to wait before touching the firmware 23.0.0: that is over. The scene caught up with Nintendo in three weeks.


What has been released

• Atmosphère 1.12.0, on 27 September 2026, with support for firmware 23.0.0. It ships hbl 2.4.5 and hbmenu 3.6.1, and raises the memory available to system modules to 16 MB.
• hekate 6.5.4 and Nyx 1.9.4, on 28 September 2026, with the same compatibility.

And 23.0.1, released since then?

Nintendo released, on 30 September a fix 23.0.1, which settles the slowdowns when launching, pausing and closing games that appeared with 23.0.0. It is a minor touch-up, and the community reference guide confirms thatit is supported: you can update, with Atmosphère 1.12.0 and hekate 6.5.4 installed first.


Two traps worth knowing

• fusee-primary no longer exists in Atmosphère 1.12.0 and will not work any more. Use fusee.bin.
• The hekate 6.5.4 archive was put back online on 28 September at 15:30 UTC to fix a sleep-mode defect. If you downloaded it in the first few hours, take it again.

The order, always the same

Atmosphère and hekate first, the console firmware after. Never the other way round. The step by step is in our Switch tutorials.

Nothing new, on the other hand, on the Switch 2: still no custom firmware, no modchip, no homebrew launcher.


Sources: Atmosphère · hekate · Reference guide (NH) · 23.0.1 release notes