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+.. _whatsnew-4.1:
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+
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+===========================================
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+ What's new in Celery 4.1 (latentcall)
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+===========================================
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+:Author: Omer Katz (``omer.drow at gmail.com``)
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+
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+.. sidebar:: Change history
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+
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+ What's new documents describe the changes in major versions,
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+ we also have a :ref:`changelog` that lists the changes in bugfix
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+ releases (0.0.x), while older series are archived under the :ref:`history`
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+ section.
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+
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+Celery is a simple, flexible, and reliable distributed system to
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+process vast amounts of messages, while providing operations with
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+the tools required to maintain such a system.
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+
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+It's a task queue with focus on real-time processing, while also
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+supporting task scheduling.
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+
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+Celery has a large and diverse community of users and contributors,
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+you should come join us :ref:`on IRC <irc-channel>`
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+or :ref:`our mailing-list <mailing-list>`.
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+
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+To read more about Celery you should go read the :ref:`introduction <intro>`.
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+
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+While this version is backward compatible with previous versions
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+it's important that you read the following section.
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+
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+This version is officially supported on CPython 2.7, 3.4, 3.5 & 3.6
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+and is also supported on PyPy.
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+
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+.. _`website`: http://celeryproject.org/
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+
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+.. topic:: Table of Contents
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+
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+ Make sure you read the important notes before upgrading to this version.
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+
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+.. contents::
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+ :local:
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+ :depth: 2
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+
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+Preface
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+=======
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+
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+The 4.1.0 release continues to improve our efforts to provide you with
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+the best task execution platform for Python.
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+
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+This release is mainly a bug fix release, ironing out some issues and regressions
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+found in Celery 4.0.0.
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+
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+We added official support for Python 3.6 and PyPy 5.8.0.
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+
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+This is the first time we release without Ask Solem as an active contributor.
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+We'd like to thank him for his hard work in creating and maintaining Celery over the years.
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+
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+Since Ask Solem was not involved there were a few kinks in the release process
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+which we promise to resolve in the next release.
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+This document was missing when we did release Celery 4.1.0.
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+Also, we did not update the release codename as we should have.
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+We apologize for the inconvenience.
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+
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+For the time being, I, Omer Katz will be the release manager.
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+
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+Thank you for your support!
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+
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+*— Omer Katz*
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+
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+Wall of Contributors
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+--------------------
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+
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+Acey <huiwang.e@gmail.com>
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+Acey9 <huiwang.e@gmail.com>
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+Alan Hamlett <alanhamlett@users.noreply.github.com>
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+Alan Justino da Silva <alan.justino@yahoo.com.br>
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+Alejandro Pernin <ale.pernin@gmail.com>
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+Alli <alzeih@users.noreply.github.com>
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+Andreas Pelme <andreas@pelme.se>
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+Andrew de Quincey <adq@lidskialf.net>
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+Anthony Lukach <anthonylukach@gmail.com>
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+Arcadiy Ivanov <arcadiy@ivanov.biz>
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+Arnaud Rocher <cailloumajor@users.noreply.github.com>
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+Arthur Vigil <ahvigil@mail.sfsu.edu>
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+Asif Saifuddin Auvi <auvipy@users.noreply.github.com>
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+Ask Solem <ask@celeryproject.org>
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+BLAGA Razvan-Paul <razvan.paul.blaga@gmail.com>
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+Brendan MacDonell <macdonellba@gmail.com>
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+Brian Luan <jznight@gmail.com>
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+Brian May <brian@linuxpenguins.xyz>
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+Bruno Alla <browniebroke@users.noreply.github.com>
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+Chris Kuehl <chris@techxonline.net>
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+Christian <github@penpal4u.net>
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+Christopher Hoskin <mans0954@users.noreply.github.com>
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+Daniel Hahler <github@thequod.de>
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+Daniel Huang <dxhuang@gmail.com>
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+Derek Harland <donkopotamus@users.noreply.github.com>
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+Dmytro Petruk <bavaria95@gmail.com>
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+Ed Morley <edmorley@users.noreply.github.com>
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+Eric Poelke <epoelke@gmail.com>
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+Felipe <fcoelho@users.noreply.github.com>
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+François Voron <fvoron@gmail.com>
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+GDR! <gdr@gdr.name>
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+George Psarakis <giwrgos.psarakis@gmail.com>
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+J Alan Brogan <jalanb@users.noreply.github.com>
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+James Michael DuPont <JamesMikeDuPont@gmail.com>
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+Jamie Alessio <jamie@stoic.net>
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+Javier Domingo Cansino <javierdo1@gmail.com>
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+Jay McGrath <jaymcgrath@users.noreply.github.com>
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+Jian Yu <askingyj@gmail.com>
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+Joey Wilhelm <tarkatronic@gmail.com>
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+Jon Dufresne <jon.dufresne@gmail.com>
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+Kalle Bronsen <bronsen@nrrd.de>
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+Kirill Romanov <djaler1@gmail.com>
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+Laurent Peuch <cortex@worlddomination.be>
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+Luke Plant <L.Plant.98@cantab.net>
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+Marat Sharafutdinov <decaz89@gmail.com>
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+Marc Gibbons <marc_gibbons@rogers.com>
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+Marc Hörsken <mback2k@users.noreply.github.com>
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+Michael <michael-k@users.noreply.github.com>
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+Michael Howitz <mh@gocept.com>
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+Michal Kuffa <beezz@users.noreply.github.com>
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+Mike Chen <yi.chen.it@gmail.com>
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+Mike Helmick <michaelhelmick@users.noreply.github.com>
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+Morgan Doocy <morgan@doocy.net>
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+Moussa Taifi <moutai10@gmail.com>
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+Omer Katz <omer.drow@gmail.com>
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+Patrick Cloke <clokep@users.noreply.github.com>
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+Peter Bittner <django@bittner.it>
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+Preston Moore <prestonkmoore@gmail.com>
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+Primož Kerin <kerin.primoz@gmail.com>
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+Pysaoke <pysaoke@gmail.com>
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+Rick Wargo <rickwargo@users.noreply.github.com>
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+Rico Moorman <rico.moorman@gmail.com>
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+Roman Sichny <roman@sichnyi.com>
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+Ross Patterson <me@rpatterson.net>
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+Ryan Hiebert <ryan@ryanhiebert.com>
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+Rémi Marenco <remi.marenco@gmail.com>
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+Salvatore Rinchiera <srinchiera@college.harvard.edu>
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+Samuel Dion-Girardeau <samuel.diongirardeau@gmail.com>
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+Sergey Fursov <GeyseR85@gmail.com>
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+Simon Legner <Simon.Legner@gmail.com>
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+Simon Schmidt <schmidt.simon@gmail.com>
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+Slam <3lnc.slam@gmail.com>
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+Static <staticfox@staticfox.net>
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+Steffen Allner <sa@gocept.com>
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+Steven <rh0dium@users.noreply.github.com>
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+Steven Johns <duoi@users.noreply.github.com>
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+Tamer Sherif <tamer.sherif@flyingelephantlab.com>
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+Tao Qingyun <845767657@qq.com>
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+Tayfun Sen <totayfun@gmail.com>
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+Taylor C. Richberger <taywee@gmx.com>
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+Thierry RAMORASOAVINA <thierry.ramorasoavina@orange.com>
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+Tom 'Biwaa' Riat <riat.tom@gmail.com>
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+Viktor Holmqvist <viktorholmqvist@gmail.com>
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+Viraj <vnavkal0@gmail.com>
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+Vivek Anand <vivekanand1101@users.noreply.github.com>
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+Will <paradox41@users.noreply.github.com>
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+Wojciech Żywno <w.zywno@gmail.com>
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+Yoichi NAKAYAMA <yoichi.nakayama@gmail.com>
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+YuLun Shih <shih@yulun.me>
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+Yuhannaa <yuhannaa@gmail.com>
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+abhinav nilaratna <anilaratna2@bloomberg.net>
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+aydin <adigeaydin@gmail.com>
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+csfeathers <csfeathers@users.noreply.github.com>
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+georgepsarakis <giwrgos.psarakis@gmail.com>
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+orf <tom@tomforb.es>
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+shalev67 <shalev67@gmail.com>
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+sww <sww@users.noreply.github.com>
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+tnir <tnir@users.noreply.github.com>
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+何翔宇(Sean Ho) <h1x2y3awalm@gmail.com>
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+
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+.. note::
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+
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+ This wall was automatically generated from git history,
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+ so sadly it doesn't not include the people who help with more important
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+ things like answering mailing-list questions.
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+
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+
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+.. _v410-important:
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+
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+Important Notes
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+===============
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+
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+Added support for Python 3.6 & PyPy 5.8.0
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+-----------------------------------------
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+
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+We now run our unit test suite and integration test suite on Python 3.6.x
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+and PyPy 5.8.0.
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+
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+We expect newer versions of PyPy to work but unfortunately we do not have the
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+resources to test PyPy with those versions.
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+
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+The supported Python Versions are:
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+
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+- CPython 2.7
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+- CPython 3.4
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+- CPython 3.5
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+- CPython 3.6
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+- PyPy 5.8 (``pypy2``)
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+
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+.. _v410-news:
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+
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+News
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+====
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+
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+Result Backends
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+---------------
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+
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+New DynamoDB Results Backend
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+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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+
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+We added a new results backend for those of you who are using DynamoDB.
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+
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+If you are interested in using this results backend, refer to :ref:`conf-dynamodb-result-backend` for more information.
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+
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+Elasticsearch
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+~~~~~~~~~~~~~
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+
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+The Elasticsearch results backend is now more robust and configurable.
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+
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+See :ref:`conf-elasticsearch-result-backend` for more information
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+about the new configuration options.
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+
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+Redis
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+~~~~~
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+
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+The Redis results backend can now use TLS to encrypt the communication with the
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+Redis database server.
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+
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+See :ref:`conf-redis-result-backend`.
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+
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+MongoDB
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+~~~~~~~
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+
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+The MongoDB results backend can now handle binary-encoded task results.
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+
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+This was a regression from 4.0.0 which resulted in a problem using serializers
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+such as MsgPack or Pickle in conjunction with the MongoDB results backend.
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+
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+Periodic Tasks
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+--------------
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+
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+The task schedule now updates automatically when new tasks are added.
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+Now if you use the Django database scheduler, you can add and remove tasks from the schedule without restarting Celery beat.
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+
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+Tasks
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+-----
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+
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+The ``disable_sync_subtasks`` argument was added to allow users to override disabling
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+synchronous subtasks.
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+
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+See :ref:`task-synchronous-subtasks`
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+
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+Canvas
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+------
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+
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+Multiple bugs were resolved resulting in a much smoother experience when using Canvas.
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Omer Katz