https://yls8.mtheall.com/ninupdates/titlelist.php?date=02-22-16_07-00-58&sys=ktr®=P
This is the latest NS I could find:
https://yls8.mtheall.com/ninupdates/titlelist.php?date=01-18-16_07-00-49&sys=ctr®=P
EDIT: Had a partial post in the box. :P
No it won't and neither with catsfc (well it won't be playable even on new3ds). Here's a compatability list for blargsnes: http://wiki.gbatemp.net/wiki/BlargSnes_Compatibility_List
Retroarch, outside of a few emulators, is mostly for the new3ds.
You need to use a different version of decrypt9 thats made for a9lh. Like this one https://mega.nz/#!yEoAzAqD!6bA4PefqiBkCr1UYPKYp8vpfE5DKpCj_0p_zpJqpUZc
A9LH + AuReiNand on 10.6 SysNAND. If I close the system while on the home menu sometimes it doesn't come back on when I open it. I usually load a game if I want to put the system to sleep. I thought it was a CFW issue. Guess its just a rare occurrence =P.
For n3ds users that get an instant shut off on a9lh updater: keep trying. Eventually it didn't shut off and I was able to press A to update and finally have screen init! :D
I unlinked my NAND by removing SD card, etc. And I got eshop access back by making sure that after installing NVer to both nands and using HANS, I relogged my NNID on sysnand and then emunand was able to log in and redownload my games. :)