A few things....

Here are a few issues I've been having;

*Objects fail to rez, but the script that is in the object runs.
*Mouse over windows no longer pop up (it use to be that is you hovered your mouse over an AV you could see it's name and group, and if it was over an object for sale, it's price)
*Using move script, SL consideres it rezing a new object every time it moves (I've gotten a message that I could be BANNED for rezzing too many objects, when all I was using was a fast movement script).
* Water sometimes does not rez at the correct height, or some times not at all.
* If some one is sellign land in an estate, and is not the owner, and the owner of the estate turns off the ability to sell land, the lot for sale is still listed as for sale, evan though it is not anymore.
*Complex AVs (such as furries) will have random parts move every once in a while when crossing sim boundrys, or TPing.
*You STILL do the "high kick" when standing on the boundry of a prim and the ground.

another thing I ran across;

if I change the detales (any one of them, from auto retur, to name) of land I own, I have to close the window to save them...If I simply switch windows like I use to, the changes will NOT be saved.

The name of the lot sometimes will not change on the listing after I change it, I end up taking it down from sale, and relisting it so the name change can be seen.