Change InnoDB from Antelope to Barracuda?

Are there any problems that could happen if we run: SET GLOBAL innodb_file_format=Barracuda; This would be on a normal shared hosting server. My understanding is that changing this setting, as well as innodb_file_format_max, to Barracuda only affects new tables created, and also, apparently, only those that need the advanced features of Barracuda. Is this correct? Barracuda is only needed for a few accounts on the server, and I don't want to affect my other users' databases. Currently innodb_file_format and innodb_file_format_max are set to Antelope, and the server is running MySQL 5.6.39. (I do plan on upgrading to 5.7 soon.)