You can migrate a old v0.8 installation.
Quick overview:
Before you start, you should check:
For migration login and go into the "Django admin site"
and run every menu point.
v0.9 used the site framework. So you can migrate multiple v0.8 sites into one v0.9 installation. Here a quick overview:
http://site_1.tld/admin/update/
to insert other sites, do this:
http://site_2.tld/admin/update/You can repeat this for all sites.