OC 10.0.4 compress css and js

Hi to all, i have succesfuly upgraded my owncloud to last version 10.0.4; my questio is how i achieve css and js compress mentioned in js and css asset
and which program you advice for this process.
Thanks in advance for helping me .

as far as possible we already use minified js libs as far as possible. There is no further mechanism in place.

That doc section needs to be changed. Thanks for pointing out.