Celery

--------------------

- ApplyResult.terminate() may be set to signify that the job
must not be executed. It can be used in combination with
Pool.terminate_job.

- Pipe/_SimpleQueue: Now supports rnonblock/wnonblock arguments
to set the read or write end of the pipe to be nonblocking.

- Pool: Log message included exception info but exception happened
in another process so the resulting traceback was wrong.

- Pool: Worker process can now prepare results before they are sent
back to the main process (using ``Worker.prepare_result``).

--------------------

- Pool: New ``correlation_id`` argument to ``apply_async`` can be
used to set a related id for the ``ApplyResult`` object returned:

>>> r = pool.apply_async(target, args, kwargs, correlation_id='foo')
>>> r.correlation_id
'foo'

- Pool: New callback `on_process_exit` is called when a pool
process exits, with signature ``(pid, exitcode)``.

Contributed by Daniel M. Taub.

- Pool: Improved the too many restarts detection.

--------------------

- Dual code base now runs on Python 2.6+ and Python 3.

- No longer compatible with Python 2.5

- Includes many changes from multiprocessing in 3.4.

- Now uses ``time.monotonic`` when available, also including
fallback implementations for Linux and macOS.

- No longer cleans up after receiving SIGILL, SIGSEGV or SIGFPE

Contributed by Kevin Blackham

- ``Finalize`` and ``register_after_fork`` is now aliases to multiprocessing.

It's better to import these from multiprocessing directly now
so that there aren't multiple registries.

- New `billiard.queues._SimpleQueue` that does not use semaphores.

- Pool: Can now be extended to support using multiple IPC queues.

- Pool: Can now use async I/O to write to pool IPC queues.

- Pool: New ``Worker.on_loop_stop`` handler can be used to add actions
at pool worker process shutdown.

Note that, like all finalization handlers, there is no guarantee that
this will be executed.

Contributed by dmtaub.

======
:release-date: 2016-10-06 05:00 P.M PDT
:release-by: Ask Solem

- Connection: Return value of ``.info()`` was no longer JSON serializable,
leading to "itertools.cycle object not JSON serializable"
errors (Issue 635).

.. _version-3.0.36:

======
:release-date: 2016-09-30 03:06 P.M PDT
:release-by: Ask Solem

- Connection: Fixed bug when cloning connection with alternate urls.

Fix contributed by Emmanuel Cazenave.

- Redis: Fixed problem with unix socket connections.

https://github.com/celery/celery/issues/2903

Fix contributed by Raphael Michel.

- Redis: Fixed compatibility with older redis-py versions (Issue 576).

- Broadcast now retains queue name when being copied/pickled (Issue 578).

.. _version-3.0.35:

======
:release-date: 2016-03-22 11:22 P.M PST
:release-by: Ask Solem

- msgpack: msgpack support now requires msgpack-python > 0.4.7.

- Redis: TimeoutError was no longer handled as a recoverable error.

- Redis: Adds the ability to set more Redis connection options
using ``Connection(transport_options={...})``.

- ``socket_connect_timeout``
- ``socket_keepalive`` (requires :mod:`redis-py` > 2.10)
- ``socket_keepalive_options`` (requires :mod:`redis-py` > 2.10)

- msgpack: Fixes support for binary/unicode data

.. _version-3.0.34: