We're hoping to release Moodle 2.4 in a few weeks time, and to ensure a top quality release, we're running another QA testing cycle. The list of over 600 QA tests has been expanded to include tests covering new features and improvements in Moodle 2.4.
If you would like to volunteer to help with QA testing, please see the discussion Help needed with Moodle 2.4 QA testing for details of how you can be involved.
Thanks in advance for your help with our next version of Moodle!