As I predicted a couple days ago on the osTicket forums, just minutes ago osTicket 1.7 RC6 was released. This release candidate addresses many bugs that were reported from previous released as well as a host of [unnamed] enhancements and improvements. Although Peter said that RC5 was likely to be the last RC nearly 3 weeks ago we hope this will be the last RC release before the long awaited stable.
OSTicket is a popular [free] open source help desk software or trouble ticketing system built on MySQL/PHP. It allows users or clients to open a ticket and describe the problem that they are experiencing so that your staff can track and update their trouble ticket easily and send out notifications with each update. It can also be used to monitor email accounts and automatically open new tickets when email arrives.
You can get the latest RC version over at Github. As a reminder this version is for developers and enthusiasts only and should never be used for a production environment.
source: OSTicket.com Forums