The 3.7.2 update is recommended for Apple Remote Desktop users and addresses several issues related to overall reliability, usability and compatibility.

This update also provides:

Fixed scanner issue causing wrong IP addresses to be displayed
Changes to view order of screens in multi-observe mode
Support for OS X Mavericks
Automatic copy and paste between local and remote computers
Improved support for Mac systems with multiple displays and multiple IP addresses
Enhanced multi-observe with gesture support for swiping between screens
Improves overall reliability of the Remote Desktop application and screen sharing sessions

For detailed information on this update, please visit this website: http://support.apple.com/kb/HT6115

Dowlonad is for update 3.7.2. Commercial version 3.8 is available via the Mac App Store.