Just today, Nintendo 3DS firmware 11.4.0-37 has been released. I saw no other posts on this so far, so I am posting it. Here is what I found so far has been either temporarily or permanently broken/patched.

BootNTR Selector: Working with latest version (2.7.3)

UDSploit: Patched

Soundhax: Patched (Finally Nintendo... Lmao)

Safehax: Doesn't work without UDSploit, so therefore broken.

11.4.0-37 fixes the slowdown bug for some games like OOT3D that 11.3.0-36 has introduced. Confirmed by @Feffe

Please let me know if anything else got patched. Yes, of course, if you have A9LH+Luma3DS, you can safely update.

 

[adrienabadie]

oh god im sorry, i had two gbatemps tabs open and posted on the wrong one lol. I should have checked before posting my bad.
edit: I tried what you guys told me and so far everything seems good. i was scared af of my sd card becoming corrupt after this (im going to backup my saves and scan it for errors when i get an adapter just in case tho). Thank you! And again sorry for bringing up an old thread.