Thus spake Mike Perry (mikeperry@torproject.org):
Also exists at https://gitweb.torproject.org/user/mikeperry/torspec.git/blob/path-bias-tuni...
I've updated this proposal to address some questions and comments from people who have reviewed it via private email. The url for these changes is: https://gitweb.torproject.org/user/mikeperry/torspec.git/blob/path-bias-tuni...
The following sections were added: "Security Considerations: Targeted Failure Attacks" "Implementation Notes: Differences between this proposal and source"
I also added a couple paragraphs to the Motivation and Design Description sections, to clarify some points.