The CFAI keeps changing the curriculum at regular intervals to keep the material uptodate. Thats why it is such a coveted course and the people who clear the exams so well respected.
Here is the CFA curriculum change for 2013 - 2014 as found at the Elan Guides website.
Go to the link to get the CFA LOS change for 2013 - 2014 for level 1, level 2 and level 3.
http://www.elansguides.com/docs/Los-changes-2013-2014.pdf