Armies of Oblivion and AP4 had new pages that need to go into the ASLRB2. There are other pages located online with MMP but frankly I am skeptical about using them…I'd rather wait till they are reproduced by MMP in a product.
One thing to remember…don't worry if your rules are not perfecly up to date. You will be able to play 99% of your games perfectly well even if you have no updates. This is true since most of us make tons of rules mistakes when we play anyway. SO unless you are going to be crusiing the ASL tourney circuit, I'd not worry too much about the latest incarnation of the bocage rules. Eventually you will have to buy ASLRB3 anyway….