Question about changes in AP Exams?

<p>I realize that starting this year, students will no longer be penalized for incorrect answers on the multiple choice section. However, aside from that, are there any other upcoming changes to the AP exam? Should I be able to study using the same AP study guides from before, and should self-studying AP Psychology and Environmental Science still be plausible?</p>

<p>Here is what I'm taking this year:</p>

<p>AP US History :: AMSCO
AP Biology :: Cliffs
AP English Language and Composition :: <em>need suggestions</em>
AP Psychology (self-study) :: Barron's
AP Environmental Science (self-study) :: <em>need suggestions</em></p>

<p>Cliffs lang, PR enviro</p>