The catalog instance
Release memory and cycled references.
Get the extensions dictionary.
Get a developer extension by its name.
This method will return an array with the "baseVersion" and "extensionLevel" keys or false
if no extension was found.
Get all defined developer extensions.
The method will return an array of the following structure:
[$name => [baseVersion => "...", extensionLevel => "..."], ...]
Removes a developer extension from the dictionary.
Set the data of a developer extension.