Update 23.5.0 closes homebrew on Switch 2; anyone on 23.0.1 should not update
On November 9, 2026, Nintendo began rolling out firmware 23.5.0, the Switch 2 system update. For anyone on 23.0.1 who wants to keep using homebrew (fan-made programs outside the official store), developers are telling people not to update. According to developers, this update patches ns2jb, the SmileBASIC flaw used to run homebrew, on both Switch and Switch 2. Nintendo’s official notes do not mention that: they list eShop gifts for family-group members starting November 17, text-to-speech in European Portuguese, and general fixes.
@nintendo_cs · X · Nov 09, 2026
Context
A well-known scene developer said the fix applies to both Switch and Switch 2 and asked people not to update. Another developer said that, from this version on, dumping and modding games becomes impossible again, with the possible exception of some cartridges and, perhaps, game updates released soon. Nintendo describes 23.5.0 only in terms of new features and general fixes. Switch2Unlock does not provide games, keys or firmware. See also the latest news on the work-in-progress homebrew tool.