Changes made by Decision of the Council (General Affairs) of 1 December 2009 establishing the list of Council configurations in addition to those referred to in the second and third subparagraphs of Article 16(6) of the Treaty on European Union (2009/878/EU)
EU Decision 2009/878
No changes made by Decision of the Council (General Affairs) of 1 December 2009 establishing the list of Council configurations in addition to those referred to in the second and third subparagraphs of Article 16(6) of the Treaty on European Union (2009/878/EU) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.