Okay, confirmed: Stickerhax works on N3DS 11.10 U with the same payload as 11.9.
Also, there is now apparently an otherapp.bin that works with N3DS 11.10 E available at
https://www.reddit.com/r/3dshacks/comments/bttp7z/new_update_out_dont_update_yet/epccmph/. There's probably an O3DS otherapp.bin, but I don't know where it is.
Time for a not-so-little review:
The Problem with Sploit-Installer
Note that this does not particularly apply to steelhax or freakyhax, since these load otherapp.bin off the SD card instead of embedding it in the save data.
So, spolit-installer is
hardcoded to download otherapp.bin from
http://smea.mtheall.com/get_payload.php?version=%s-%d-%d-%d-%d-%s . If you specify NEW-11-10-0-43-USA, you're supposed to get N3DS_U_29697_usa_9221.bin , which is the file you'll get from
https://smealum.github.io/3ds/ . Instead, you'll get N3DS_U_28673_usa_9221.bin , the old payload you would get by specifying NEW-11-6-0-xx-USA – and so the exploit won't work. In theory whoever has access to that server could update the php scripts and solve the problem for everyone, but I tried contacting some people and got nowhere. All these exploits are kind of depreciated now, so it's sort of understandable. (I don't know for sure, but I expect the updaters built into Humblehax and Basehax also use the same URL.)
Someone could in theory recompile all the sploit installers with a new URL on another server, but I for one don't have a server and have no idea how to recompile them anyway. Someone has already made an
offline installer for oot3dhax which reads from a copy of otherapp.bin on the SD card.
Alternatively, you could in theory configure your wireless router to redirect
http://smea.mtheall.com/ to a local HTTP server that would provide the correct file.
But with the tools available, the only real option for updating is to use JKSM. After you've run the sploit-installer for whatever *hax you're trying to install and you dump the save data for Sticker Star/OoT3D/Citizens of Earth/whatever, the JKSM dump will include a file named payload.bin. Rename N3DS_U_29697_usa_9221.bin (or whatever your otherapp.bin is called) to payload.bin, overwrite the copy of payload.bin in the save data dump, and then re-import the data with JKSM and you should be good to go.
Alternatively, for games with data stored on your SD card,
save3ds can now apparently be used instead of JKSM to manipulate save data. save3ds is currently not available for Windows, however.
Or you can just install CFW and forget about *hax exploits forever. :-P