HUD has published updated income limits for FY 2013. The update did not include an explanation as to why the change was made or what was changed. NAHMA is currently following up with HUD to obtain more information.
The updated FY 2013 income limits may be found here: http://www.huduser.org/portal/datasets/il/il13/index.html
In addition, HUD published the income limits for d3 BMIRs, Section 235 and Section 236 properties today. A copy of the notice announcing the FY 2013 income limits for these programs may be found here: http://www.huduser.org/portal/datasets/il/il13/Notice_235-236.pdf