Version 0.31.2 of the CommonMark spec has been released:
I have also released conforming versions of the reference implementations
Most of the changes to the spec are very minor. The main ones for implementers to notice are
- a slight change in the spec for inline HTML comments
 - we now treat Unicode symbols like Unicode punctuation for purposes of determining flankingness
 <search>is now a recognized block element;<source>is not.
See the changelog for details.
Thanks to everyone who contributed.