Apple has posted an update to Apple Remote Desktop, the desktop management software for Macs. The new 3.7.1 release is available for immediate download.
Apple Remote Desktop provides a mechanism for administrators to distribute software to networked Macs, create software and hardware reports and automate regular maintenance tasks. The administration software is available for download from the Mac App Store.
Fixes in 3.7.1 include the following, according to Apple's release notes
If you've updated Remote Desktop to 3.7 and lost access because of OS X's firewall, restart your Mac after installing this update - it should be fixed.