Available JQL functions on this section are:
Perform searches based on projects which their name match with the provided regular expression.
Note:This function uses Java native String.matches() method internally to determine the projects affected by the given expression.See Pattern Java Class for further information.
Perform searches based on projects of the given type (Service Desk, Software or Business).
Perform searches based on projects that you have recently viewed, i.e. project that are in the 'Current Project' or 'Recent Projects' sections of the 'Project' drop-down menu.
if you are not logged in to JIRA, only projects from your current browser session will be included.
JQL Function Reference