Normally, not an issue, but as we noted in the 1.1 release notes, the database is not backwards compatible with 1.0, so this is a 1-way upgrade: Roon 1.1 Is Live!
Note that due to a number of database changes, database backups created using Roon 1.1 are not backwards compatible, and remotes running Build 30 or earlier cannot connect to Roon 1.1.