emerge --sync 后出现的信息是什么意思？

Performing Global Updates: /usr/portage/profiles/updates/4Q-2006
(Could take a couple of minutes if you have a lot of binary packages.)
.='update pass' *='binary update' @='/var/db move'
s='/var/db SLOT move' S='binary SLOT move' p='update /etc/portage/package.*'


Performing Global Updates: /usr/portage/profiles/updates/1Q-2007
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这样执行Global Updates了么？
还有，2006，2007，怎么有二个?

Thank u !

Ignore it
Harmless