I have just updated to the latest release. Everything went successful according to the upgrade, and all of my content in the forums does still appear fine. However, if I click on "Forums" in the navigation breadcrumbs to see the main forum index, I am presented with the following:
Error: Class 'IPS' not found (0)
#0 /html/system/Dispatcher/Front.php(652): IPS\_Log::log(Object(OutOfRangeException), 'dispatcher')
#1 /html/system/Dispatcher/Dispatcher.php(155): IPS\Dispatcher\_Front->finish()
#2 /html/index.php(13): IPS\_Dispatcher->run()
#3 {main}
Any help here would be greatly appreciated!