Please, don't forget that this is a BETA version. It is NOT meant for production sites and there's no update package yet. Just test a clean install and let us know how it goes.
And if you do upgrade i HOPE you do lose everything.
There will be an update pack "7.0.6 to 7.0.7" once we're out of Beta. You see, many people are too brave and beta-upgrade packs tempt them to update the live site too early. This and time-saving considerations forced us to offer upgrade packs for final versions only.
And if you do upgrade i HOPE you do lose everything.
wait for the original version !!
do you know when dolphin 8 will come ?
sorry for my english !