That's actually what I was trying to get clarification on.  
and even correct the original.
The original that you see, says that composer updates libraries "semi-automatically" - and I'm not exactly sure that's true.  I know that you can run composer at the command line to do updates - but I'm not exactly sure what they meant by that.  
Also, the way it was previously written was confusing where specifically where it stated:  "no matter which autoloading these are using" - what is "these"  exactly