Changes made by Political and Security Committee Decision ATALANTA/5/2011 of 16 December 2011 amending Political and Security Committee Decision ATALANTA/2/2009 on the acceptance of third States’ contributions to the European Union military operation to contribute to the deterrence, prevention and repression of acts of piracy and armed robbery off the Somali coast (Atalanta) and Political and Security Committee Decision ATALANTA/3/2009 on the setting up of the Committee of Contributors for the European Union military operation to contribute to the deterrence, prevention and repression of acts of piracy and armed robbery off the Somali coast (Atalanta) (2011/846/CFSP)
EU Decision 2011/846
The legislation Political and Security Committee Decision ATALANTA/5/2011 of 16 December 2011 amending Political and Security Committee Decision ATALANTA/2/2009 on the acceptance of third States’ contributions to the European Union military operation to contribute to the deterrence, prevention and repression of acts of piracy and armed robbery off the Somali coast (Atalanta) and Political and Security Committee Decision ATALANTA/3/2009 on the setting up of the Committee of Contributors for the European Union military operation to contribute to the deterrence, prevention and repression of acts of piracy and armed robbery off the Somali coast (Atalanta) (2011/846/CFSP) changes, newest first. Choose one to see each change.
From legislation.gov.uk's record of changes, the official one: see it there.