Chapter 1 What’s New for FortiOS 5.0 : New features in FortiOS 5.0 Patch 4 : Other new features
  
Other new features
Valgrind is now supported in urlfilter daemon, using the following commands:
diagnose debug urlfilter valgrind enable
diagnose debug urlfilter valgrind status
diagnose debug urlfilter valgrind memcheck
diagnose debug urlfilter valgrind log
The default post-login banner now displays the time of the last successful and last failed administrator login.