Changes to 2003/400/EC: Council Decision of 19 May 2003 amending Decision 2001/496/CFSP, Decision 2001/41/EC, the Council Decision of 25 June 1997 and the Council Decision of 22 March 1999 as regards the subsistence allowances of national military staff and experts on secondment to the General Secretariat of the Council
EU Decision 2003/400
No changes to 2003/400/EC: Council Decision of 19 May 2003 amending Decision 2001/496/CFSP, Decision 2001/41/EC, the Council Decision of 25 June 1997 and the Council Decision of 22 March 1999 as regards the subsistence allowances of national military staff and experts on secondment to the General Secretariat of the Council are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.