Regularly macppc package builds ?

Hello !

I know, that package builds depend on available resources - are there
planned / regularly builds of the -current macppc packages ?

The reason I ask (it is not more then a question) is, that I like to
try a new installation of -current on a second PowerMac G5. The
available (as I wrote this message) base system is from January 9 and,
the packages are from December 18.

If the gap between the base and package build is so huge, how I know
with which -current base system version the packages are built ?

Thanks for answers.

Christoph