BlogBridge uses OPML extensively. We recently updated our OPML support to conform with OPML 2.0 also.

The OPML spec isn’t frozen yet, but we needed to update some things we were doing and decided, why not follow the spec? If we need to tweak it further we can do that.

Of course when doing that it’s important to pay close attention to what everyone else is doing. There’s a useful concept that has been called “Postel’s Law“, which basically says be strict in what you generate and liberal in what you accept.” (See Wikipedia about Jon Postel)

Even though we’ve updated our OPML support to conform with 2.0, we still continue to accept all variants of OPML that we’ve encountered in the wild. In other words, if our OPML fails to be imported by application X, or we fail to import OPML from application Y, we consider it OUR bug.

Check here for a write-up with more details about how we use OPML, our name-space, and extensions to the type= attribute.

Technorati Tags: OPML, opmlcamp