All 1.5 items have been added – including hoppers. For security reasons, hoppers have been set so they can’t pull items out of chests. For more details about this decision, please check this forum thread.
Apart from that, we’ve added droppers, all minecart types and more.
A massive overhaul has been done on performances and optimizations, so you can enjoy a lag free server.
Another somewhat minor but still useful tweak: the ghast tear vendors at spawn have gotten suggestive names that should better help you find the items you want to buy. And more important, the groundwork has been laid for a lot more exciting updates in the near future.