Tor 0.2.8.7 is released, with important fixes
From the post:
Tor 0.2.8.7 fixes an important bug related to the ReachableAddresses option in 0.2.8.6, and replaces a retiring bridge authority. Everyone who sets the ReachableAddresses option, and all bridges, are strongly encouraged to upgrade.
You can download the source from the Tor website. Packages should be available over the next week or so.
For some reason, a link to the Tor website was omitted.
Upgrade and surf somewhat more securely. (Security never being absolute.)