Version 2.1: what does it do, does it really search all now and how doI update?

Hi there,

I got a screaming notification on top of my admin panel that there was a new version of this plugin.
As the old one never worked (it does not search any exiting blogs, so only useful(?) for totally brandnew installations), I wondered what this new version does:
- Where is the Change log?
- Does it search the entire network, meaning everything, meaning including existing blogs?
- How do I get rid of these annoying update notifications (WP already notifies me about this)?
- How are we supposed to update, why can I not update automatically, even with your API key, or am I missing something?