In this release, two types get rules support, blogpost and howto.
This is a blogpost so it's being rendered with rules.
One side-effect of that is that all outlines processed with the rules renderer can be collapsed. Try clicking on the parent of this headline to see for yourself.
If you have an existing blogpost or howto node, verify that it still works.
Create a new blog post. Verify that you can read it. Look at the example outline for ideas of how to use rules. Prepare yourself for some head-scratching.
Ask questions on the list. Always include screen shots, URLs and the actual outlines you're using if they would help someone help you.