[Shotwell] Any database changes in 0.12?

[Colin Law]

I am using Shotwell on Ubuntu 12.04 Beta and so have been upgraded to
0.12.1, which is working fine.  I share the database and pictures
folder with Shotwell on another machine which is currently running
0.11.6 (Ubuntu 11.10) but have not run that since the first machine
was updated.  Am I going to run into problems if I open the 0.12.1 db
with 0.11.6?

Colin