you only have to update if you have games you can’t play. There’s no burning hot features in 15.0.1
15.0.0 and 15.0.1 are identical except for some minor edge cases. No update was required from Atmosphere… 1.4.0 still works with both.
just update tools as usual with a new release. Almost everything has been updated at this point.
You found them! Just unzip at the root of your SDCard. They include everything you need for all situations. No more need for different sets. Fusee.zip instructions are old. Don’t worry…it’s all in there. :-)
if you get stuck:
https://rentry.co/SwitchHackingIsEasy