If you export workflow in 0.7 and import it into 0.8 all user variables are lost.
Corresponding Populate variables nodes have empty lines:
Loosing user variables in migration from 0.7 to 0.8
Loosing user variables in migration from 0.7 to 0.8
Alexander Sorkin
Re: Loosing user variables in migration from 0.7 to 0.8
Yes, 0.7.x don't export user variables, 0.8.x does
-steinar
-steinar