I kicked a new version of RubyVote out the door last week. This version has support of Instant Runoff Voting contributed by Alexis Darrasse. Thanks! I’m not a huge IRV fan but others are so it’s important to have it in the library.
There’s a gemified version with range voting plus an improved IRV implementation that may have landed in the SVN repository by the time you read this. I’ll release another version in the next week or so once everything has settled.