I’m using 2012 Schweser materials.
As best I can tell, only one Study Session has changed, and that’s the one on Corporate Governance. I’m not even sure how much it changed. Even though the LOS’s changed, I’m not sure if the underlying concepts did.
Just so you know how out-of-date the CFA curriculum is: the UMIFA (Uniform Management of Institutional Funds Act) was replaced in 2006 by another standard, the PMIFA or something. Maybe one of these days, CFAI will stop changing the curriculum just to change the curriculum, and actually improve it.