Yes to make it even more clear:

You cannot move over the old wallet to the new app (not the file nor the seed). We use a BIP 44 wallet now which has another internal structure. Simply make a normal bitcoin transaction to move funds.

You cannot export and import the account data. We use Protobuffer as file format instead of Java Serialization for the local data base files. Please setup the new account manually.

If you want to keep your onion address you can copy over the old one from the data directory.

You can only do that if you have not created an offer or trade, otherwise you cannot get contacted anymore!

It is also not tested yet if it has any side effect. I am not aware of any but who knows… So use it at your own risk. I will try to have a look into it soon if there is a good solution to migrate the P2P reputation (nr. of trades with past traders).

You can find the data directory under those locations (the new one used Bisq instead of Bitsquare):

Mac OSX: /Users/username/Library/Application Support/Bitsquare

Linux: /home/username/.local/share/Bitsquare

Windows 7,8: C:\Documents and Settings\username\AppData\Roaming\Bitsquare

Windows XP: C:\Documents and Settings\username\Application Data\Bitsquare

The key for the tor onion address is here:

[APP DIR]/[NETWORK]/tor/hiddenservice/hostname

[APP DIR]/[NETWORK]/tor/hiddenservice/private_key

We are aware that breaking backward compatibility is nothing what people like, but it would have required quite an effort to build tools for migration. I think most users will prefer that we get soon to the DAO release and to implement new features instead of spending a lot of effort for a one-time event.

We did not break backward compatibility since the initial launch (April 2016).

Sometimes it is required to make bigger changes otherwise one cannot move forward in an efficient way.

Hope you understand that.