user: Question: When's the end of maintenance in the  August 11, 2013 release date?
Columns: ['Version', 'Release', 'Release date', 'End of maintenance', 'Requirement']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1.0', '1.0', 'December 3, 2008', 'December 31, 2010', 'PHP 5.1.0 or above']
SQL:

assistant: SELECT "End of maintenance" FROM "Table" WHERE "Release date" = 'August 11, 2013';