Log Message:
Updated to latest release, 2.10.1. From CHANGES:

* 2.10.1
    * Fixed a bug where Sentinel connections to a server that's no longer a
      master and receives a READONLY error will disconnect and reconnect to
      the master.
* 2.10.0
    * Discontinuted support for Python 2.5. Upgrade. You'll be happier.
    * The HiRedis parser will now properly raise ConnectionErrors.
    * Completely refactored PubSub support. Fixes all known PubSub bugs and
      adds a bunch of new features. Docs can be found in the README under the
      new "Publish / Subscribe" section.
    * Added the new HyperLogLog commanads (PFADD, PFCOUNT, PFMERGE). Thanks
      Pepijn de Vos and Vincent Ohprecio.
    * Updated TTL and PTTL commands with Redis 2.8+ semantics. Thanks Markus
      Kaiserswerth.
    * *SCAN commands now return a long (int on Python3) cursor value rather
      than the string representation. This might be slightly backwards
      incompatible in code using *SCAN commands loops such as
      "while cursor != '0':".
    * Added extra *SCAN commands that return iterators instead of the normal
      [cursor, data] type. Use scan_iter, hscan_iter, sscan_iter, and
      zscan_iter for iterators. Thanks Mathieu Longtin.
    * Added support for SLOWLOG commands. Thanks Rick van Hattem.
    * Added lexicographical commands ZRANGEBYLEX, ZREMRANGEBYLEX, and ZLEXCOUNT
      for sorted sets.
    * Connection objects now support an optional argument, socket_read_size,
      indicating how much data to read during each socket.recv() call. After
      benchmarking, increased the default size to 64k, which dramatically
      improves performance when fetching large values, such as many results
      in a pipeline or a large (>1MB) string value.
    * Improved the pack_command and send_packed_command functions to increase
      performance when sending large (>1MB) values.
    * Sentinel Connections to master servers now detect when a READONLY error
      is encountered and disconnect themselves and all other active connections
      to the same master so that the new master can be discovered.
    * Fixed Sentinel state parsing on Python 3.
    * Added support for SENTINEL MONITOR, SENTINEL REMOVE, and SENTINEL SET
      commands. Thanks Greg Murphy.
    * INFO ouput that doesn't follow the "key:value" format will now be
      appended to a key named "__raw__" in the INFO dictionary. Thanks \ 
Pedro
      Larroy.
    * The "vagrant" directory contains a complete vagrant environment for
      redis-py developers. The environment runs a Redis master, a Redis slave,
      and 3 Sentinels. Future iterations of the test sutie will incorporate
      more integration style tests, ensuring things like failover happen
      correctly.
    * It's now possible to create connection pool instances from a URL.
      StrictRedis.from_url() now uses this feature to create a connection pool
      instance and use that when creating a new client instance. Thanks
      https://github.com/chillipino
    * When creating client instances or connection pool instances from an URL,
      it's now possible to pass additional options to the connection pool with
      querystring arguments.
    * Fixed a bug where some encodings (like utf-16) were unusable on Python 3
      as command names and literals would get encoded.
    * Added an SSLConnection class that allows for secure connections through
      stunnel or other means. Construct and SSL connection with the sll=True
      option on client classes, using the rediss:// scheme from an URL, or
      by passing the SSLConnection class to a connection pool's
      connection_class argument. Thanks https://github.com/oranagra.
    * Added a socket_connect_timeout option to control how long to wait while
      establishing a TCP connection before timing out. This lets the client
      fail fast when attempting to connect to a downed server while keeping
      a more lenient timeout for all other socket operations.
    * Added TCP Keep-alive support by passing use the socket_keepalive=True
      option. Finer grain control can be achieved using the
      socket_keepalive_options option which expects a dictionary with any of
      the keys (socket.TCP_KEEPIDLE, socket.TCP_KEEPCNT, socket.TCP_KEEPINTVL)
      and integers for values. Thanks Yossi Gottlieb.
    * Added a `retry_on_timeout` option that controls how socket.timeout errors
      are handled. By default it is set to False and will cause the client to
      raise a TimeoutError anytime a socket.timeout is encountered. If
      `retry_on_timeout` is set to True, the client will retry a command that
      timed out once like other `socket.error`s.
    * Completely refactored the Lock system. There is now a LuaLock class
      that's used when the Redis server is capable of running Lua scripts along
      with a fallback class for Redis servers < 2.6. The new locks fix several
      subtle race consider that the old lock could face. In additional, a
      new method, "extend" is available on lock instances that all a lock
      owner to extend the amount of time they have the lock for. Thanks to
      Eli Finkelshteyn and https://github.com/chillipino for contributions.