Hi!
This coming week, we'll be putting out new stable releases for 0.2.9 and later supported branches to fix a few security bugs. The highest-severity bug to be fixed is severity "medium". (See https://trac.torproject.org/projects/tor/wiki/org/teams/NetworkTeam/Security... for information about how we rank security issues.)
These releases will also backport the anti-DoS features from Tor 0.3.3.
Relays and authorities should be sure to upgrade once packages are available; these issues are not high-priority for clients.
best wishes,