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@@ -118,6 +118,24 @@ BACKWARD INCOMPATIBLE CHANGES
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* ``celery.discovery`` has been removed, and it's ``autodiscover`` function is
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now in ``celery.loaders.djangoapp``. Reason: Internal API.
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+* ``CELERY_LOADER`` now needs loader class name in addition to module name,
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+ e.g. where you previously had: ``"celery.loaders.default"``, you now need
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+ ``"celery.loaders.default.Loader"``, using the previous syntax will result
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+ in a DeprecationWarning.
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+
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+* Detecting the loader is now lazy, and so is not done when importing
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+ ``celery.loaders``. To make this happen ``celery.loaders.settings`` has
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+ been renamed to ``load_settings`` and is now a function returning the
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+ settings object. ``celery.loaders.current_loader`` is now also
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+ a function, returning the current loader.
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+
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+ So::
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+
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+ loader = current_loader
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+
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+ needs to be changed to::
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+
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+ loader = current_loader()
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DEPRECATIONS
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------------
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@@ -166,6 +184,11 @@ NEWS
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* You can now delete (revoke) tasks that has already been applied.
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+* You can now set the hostname celeryd identifies as using the ``--hostname``
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+ argument.
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+
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+* Cache backend now respects ``CELERY_TASK_RESULT_EXPIRES``.
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+
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* Message format has been standardized and now uses ISO-8601 format
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for dates instead of datetime.
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@@ -183,6 +206,10 @@ NEWS
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... ([8, 8], {}, {"countdown": 3})])
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>>> ts.run()
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+* Got a 3x performance gain by setting the prefetch count to four times the
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+ concurrency, (from an average task round-trip of 0.1s to 0.03s!). A new
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+ setting has been added: ``CELERYD_PREFETCH_MULTIPLIER``, which is set
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+ to ``4`` by default.
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CHANGES
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-------
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@@ -202,6 +229,8 @@ CHANGES
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* ETA no longer sends datetime objects, but uses ISO 8601 date format in a
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string for better compatibility with other platforms.
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+* No longer sends error mails for retried tasks.
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+
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* Task can now override the backend used to store results.
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* Refactored the ExecuteWrapper, ``apply`` and ``CELERY_ALWAYS_EAGER`` now
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Ask Solem