| 1234567891011121314151617181920212223242526272829303132333435363738394041424344 | .. _changelog:================ Change history================This document contains change notes for bugfix releases inthe 4.0.x series (0today8), please see :ref:`whatsnew-4.0` foran overview of what's new in Celery 4.0... _version-4.0.0:4.0.0=====:release-date: TBA:status: *FROZEN*:branch: master:release-by:See :ref:`whatsnew-4.0` (in :file:`docs/whatsnew-4.0`)... _version-4.0.0rc7:4.0.0rc7========:release-date: 2016-11-02 01:30 P.M PDTImportant notes---------------- Database result backend related setting names changed from  ``sqlalchemy_*`` -> ``database_*``.    The ``sqlalchemy_`` named settings won't work at all in this    version so you need to rename them.  This is a last minute change,    and as they were not supported in 3.1 we will not be providing    aliases.- ``chain(A, B, C)`` now works the same way as ``A | B | C``.    This means calling ``chain()`` might not actually return a chain,    it can return a group or any other type depending on how the    workflow can be optimized.
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