Please see my branch bug22370-029 on github.
Key pinning was turned on by default in 0.3.0.2-alpha.
3/8 directory authorities are running versions > 0.3.0.2-alpha.
Trac: Priority: Medium to High Status: new to needs_review Severity: Normal to Major
I made a bug22370-029-2 branch that fixes a typo in your commit message, removes a "tor-" from the changes file, and expands the function comment a bit. I'm afraid it's rebased since I don't know how to change commit messages otherwise. Do you like it?