Apple released an update for Remote Desktop earlier this month that fixes several issues that were effecting the apps stability and usability. Here's a quick list of everything you'll have to look forward to in version 3.7.1.
Support for OS X Mavericks
Automatic copy and paste between local and remote computers
Enhanced multi-observe for systems with multiple displays and IP addresses
Prevents an issue that could cause the OS X Firewall to block Remote Desktop connections. If you previously updated a Remote Desktop client to 3.7 and lost access to it because of the OS X Firewall service, restart the client computer after installing the 3.7.1 update. The correct firewall rule will be automati