Import library from an older EAGLE version

Hi there,

I have been using EAGLE 6.4 for some weeks now. I didn't do any layouting for a couple years until I was re-introduced to it this year. I still have some old EAGLE version somewhere. Is there any thing I need to know when importing the library from the older version? Or should it work readily with EAGLE 6.4?

I believe its working. Its found that the libraries made in ver4.x & 5.x are also working in v6.4