Changes made by 78/253/EEC: Commission Decision of 23 December 1977 relating to proceedings under Article 85 of the EEC Treaty (IV/171, IV/856, IV/172, IV/117, IV/28.173 - Campari) (Only the German, Danish, French, Italian and Dutch texts are authentic)
EU Decision 1978/253
No changes made by 78/253/EEC: Commission Decision of 23 December 1977 relating to proceedings under Article 85 of the EEC Treaty (IV/171, IV/856, IV/172, IV/117, IV/28.173 - Campari) (Only the German, Danish, French, Italian and Dutch texts are authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.