On Monday, 25 March 2024 17:37:40 GMT Jacques Montier wrote:
> Le lun. 25 mars 2024 à 18:18, Michael <confabulate@kintzios.com> a écrit :

> > Therefore, you can fetch binaries from the mirrors when these have the
> > same
> > configuration as your locally compiled software to make the whole upgrade
> > complete faster, but it remains a personal choice.
> 
> Thanks Michael for your response,
> but how could i know if one package has the same configuration as my
> locally compiled software and if this one is as much tested as the
> source-based package ?
> 
> --
> Jacques Montier

When the packages on the Gentoo binhost mirror have been compiled with 
different USE flags to your choices, these packages will not be fetched from 
the mirror but compiled locally.  Have a look here for more details:

https://wiki.gentoo.org/wiki/Gentoo_Binary_Host_Quickstart