Hey, all! I'm a software developer and I'm developing an offline blog writer. I want to support WP and I found there are several XML-RPC APIs. Some are new added to 3.4. I wonder if I could check which version of WP is running on the server? Then I could use different API according to the version number. If there is no such API, how could I do this? Or which one should I use in order to support more versions, blogger, metaWeblog or Movable?