Hey Oleg, I had a pretty frustrating time with it the other day when I updated. I had to uninstall and delete raven. On your computer go to users,  the username, appdata, roaming, raven. I deleted the raven folder from there which allowed me to completely reinstall it. Took three times as the first two times it hung downloading the blockchain. I had other apps running which it says not to do. Once I closed everything out and let it run it synced up in a couple of hours.

Make sure you have backed up your wallet. Then once it is all synced, swap the wallet.dat file for your backup and relaunch. Your coins should be in a functioning wallet again.

I had transactions pending. After a couple of hours those showed up and now everything works as it did before the fork.