Tor 0.2.9.8 is released: finally, a new stable series!
Posted December 19th, 2016 
https://blog.torproject.org/blog/tor-0298-released-finally-new-stable-series

by nickm in release stable tor 

Tor 0.2.9.8 is the first stable release of the Tor 0.2.9 series.

The Tor 0.2.9 series makes mandatory a number of security features that were formerly optional. It includes support for a new shared- randomness protocol that will form the basis for next generation hidden services, includes a single-hop hidden service mode for optimizing .onion services that don't actually want to be hidden, tries harder not to overload the directory authorities with excessive downloads, and supports a better protocol versioning scheme for improved compatibility with other implementations of the Tor protocol.

And of course, there are numerous other bugfixes and improvements.

This release also includes a fix for a medium-severity issue (bug 21018 below) where Tor clients could crash when attempting to visit a hostile hidden service. Clients are recommended to upgrade as packages become available for their systems.

You can download the source code from the usual place on the website. Packages should be up within the next few days, with a
TorBrowser release planned for early January.

Below are listed the changes since Tor 0.2.8.11. For a list of changes since 0.2.9.7-rc, see the ChangeLog file.
Changes in version 0.2.9.8 - 2016-12-19

    New system requirements:
        When building with OpenSSL, Tor now requires version 1.0.1 or later. OpenSSL 1.0.0 and earlier are no longer supported by the OpenSSL team, and should not be used. Closes ticket 20303.
        Tor now requires Libevent version 2.0.10-stable or later. Older versions of Libevent have less efficient backends for several platforms, and lack the DNS code that we use for our server-side DNS support. This implements ticket 19554.
        Tor now requires zlib version 1.2 or later, for security, efficiency, and (eventually) gzip support. (Back when we started, zlib 1.1 and zlib 1.0 were still found in the wild. 1.2 was released in 2003. We recommend the latest version.)