gentoo forgetting which packages were JUST compiled

[yee]

I have not updated my AMD64 box in about 6-9 months.

I just did an emerge --sync. No surprise but there is a newer version of portage which I emerged.

I then did an emerge --system. Once again portage is being compiled. Strange.

I then did an emege --world. EVERY package that was already compiled is ONCE again on the list to be emerged!

Did something change in the last 6-9 months that I am not aware of?

Thanks.

[yee]

I think I solved my own question.

The default behavior may have changed in the interim

Before, emerge system updated the system entries. Now, emerge -u system is needed!