Redis

* Various performance improvements. Thanks cjsimpson
* Fixed a bug with SRANDMEMBER where the behavior for `number=0` did
not match the spec. Thanks Alex Wang
* Added HSTRLEN command. Thanks Alexander Putilin
* Added the TOUCH command. Thanks Anis Jonischkeit
* Remove unnecessary calls to the server when registering Lua scripts.
Thanks Ben Greenberg
* SET's EX and PX arguments now allow values of zero. Thanks huangqiyin
* Added PUBSUB {CHANNELS, NUMPAT, NUMSUB} commands. Thanks Angus Pearson
* PubSub connections that encounter `InterruptedError`s now
retry automatically. Thanks Carlton Gibson and Seth M. Larson
* LPUSH and RPUSH commands run on PyPy now correctly returns the number
of items of the list. Thanks Jeong YunWon
* Added support to automatically retry socket EINTR errors. Thanks
Thomas Steinacher
* PubSubWorker threads started with `run_in_thread` are now daemonized
so the thread shuts down when the running process goes away. Thanks
Keith Ainsworth
* Added support for GEO commands. Thanks Pau Freixes, Alex DeBrie and
Abraham Toriz
* Made client construction from URLs smarter. Thanks Tim Savage
* Added support for CLUSTER * commands. Thanks Andy Huang
* The RESTORE command now accepts an optional `replace` boolean.
Thanks Yoshinari Takaoka
* Attempt to connect to a new Sentinel if a TimeoutError occurs. Thanks
Bo Lopker
* Fixed a bug in the client's `__getitem__` where a KeyError would be
raised if the value returned by the server is an empty string.
Thanks Javier Candeira.
* Socket timeouts when connecting to a server are now properly raised
as TimeoutErrors.

* Allow URL encoded parameters in Redis URLs. Characters like a "/" can
now be URL encoded and redis-py will correctly decode them. Thanks
Paul Keene.
* Added support for the WAIT command. Thanks <https://github.com/eshizhan>
* Better shutdown support for the PubSub Worker Thread. It now properly
cleans up the connection, unsubscribes from any channels and patterns
previously subscribed to and consumes any waiting messages on the socket.
* Added the ability to sleep for a brief period in the event of a
WatchError occurring. Thanks Joshua Harlow.
* Fixed a bug with pipeline error reporting when dealing with characters
in error messages that could not be encoded to the connection's
character set. Thanks Hendrik Muhs.
* Fixed a bug in Sentinel connections that would inadvertently connect
to the master when the connection pool resets. Thanks
<https://github.com/df3n5>
* Better timeout support in Pubsub get_message. Thanks Andy Isaacson.
* Fixed a bug with the HiredisParser that would cause the parser to
get stuck in an endless loop if a specific number of bytes were
delivered from the socket. This fix also increases performance of
parsing large responses from the Redis server.
* Added support for ZREVRANGEBYLEX.
* ConnectionErrors are now raised if Redis refuses a connection due to
the maxclients limit being exceeded. Thanks Roman Karpovich.
* max_connections can now be set when instantiating client instances.
Thanks Ohad Perry.

(skipped due to a PyPI snafu)

* Fixed a bug with the bytearray support introduced in 2.10.2. Thanks
Josh Owen.

* Added support for Hiredis's new bytearray support. Thanks
<https://github.com/tzickel>
* POSSIBLE BACKWARDS INCOMPATIBLE CHANGE: Fixed a possible race condition
when multiple threads share the same Lock instance with a timeout. Lock
tokens are now stored in thread local storage by default. If you have
code that acquires a lock in one thread and passes that lock instance to
another thread to release it, you need to disable thread local storage.
Refer to the doc strings on the Lock class about the thread_local
argument information.
* Fixed a regression in from_url where "charset" and "errors" weren't
valid options. "encoding" and "encoding_errors" are still accepted
and preferred.
* The "charset" and "errors" options have been deprecated. Passing
either to StrictRedis.__init__ or from_url will still work but will
also emit a DeprecationWarning. Instead use the "encoding" and
"encoding_errors" options.
* Fixed a compatibility bug with Python 3 when the server closes a
connection.
* Added BITPOS command. Thanks <https://github.com/jettify>.
* Fixed a bug when attempting to send large values to Redis in a Pipeline.

* 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.