Changes made by Council Decision of 6 December 2007 concerning the accession of Bulgaria and Romania to the Convention of 18 December 1997, drawn up on the basis of Article K.3 of the Treaty on European Union, on mutual assistance and cooperation between customs administrations (2008/39/JHA)
EU Decision 2008/39
No changes made by Council Decision of 6 December 2007 concerning the accession of Bulgaria and Romania to the Convention of 18 December 1997, drawn up on the basis of Article K.3 of the Treaty on European Union, on mutual assistance and cooperation between customs administrations (2008/39/JHA) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.