Changes to 1999/291/EC, ECSC, Euratom: Council Decision of 26 April 1999 amending Decision 88/591/ECSC, EEC, Euratom establishing a Court of First Instance of the European Communities to enable it to give decisions in cases when constituted by a single judge
EU Decision 1999/291
No changes to 1999/291/EC, ECSC, Euratom: Council Decision of 26 April 1999 amending Decision 88/591/ECSC, EEC, Euratom establishing a Court of First Instance of the European Communities to enable it to give decisions in cases when constituted by a single judge are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.