question about system update

http://www.calculate-linux.org/main/en/optimization_of_system -> is that safe? necessary? article is written for version from 2009 right?

Hi,
Not necessary.
System full optoimized now

ok thanks. if i do https://www.calculate-linux.org/main/en/system_update_guide (FEATURES="-getbinpkg") and rebuild every app can my system become faster/more stable?

thanks

I think no.
You can try but i don’t think.