Add towncrier

lsst · Jan 17, 2024 · d9828db · d9828db
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diff --git a/doc/changes/DM-42317.api.rst b/doc/changes/DM-42317.api.rst
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+The ``Datastore`` base class was changed so that subclasses are no longer
+required to have the same constructor parameters as the base class.  Subclasses
+are now required to implement ``_create_from_config`` for creating an instance
+from the ``Datastore.fromConfig`` static method, and ``clone`` for creating a
+copy of an existing instance.
diff --git a/doc/changes/DM-42317.bugfix.rst b/doc/changes/DM-42317.bugfix.rst
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+Fixed miscellaneous thread-safety issues in DimensionUniverse, DimensionGroup, and StorageClassFactory.
diff --git a/doc/changes/DM-42317.feature.rst b/doc/changes/DM-42317.feature.rst
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+"Cloned" Butler instances returned from ``Butler(butler=otherButler)`` and ``LabeledButlerFactory`` no longer share internal state with their parent instance.  This makes it safe to use the new instance concurrently with the original in separate threads.  It is still unsafe to use a single ``Butler`` instance concurrently from multiple threads.
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		Fixed miscellaneous thread-safety issues in DimensionUniverse, DimensionGroup, and StorageClassFactory.
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		"Cloned" Butler instances returned from ``Butler(butler=otherButler)`` and ``LabeledButlerFactory`` no longer share internal state with their parent instance. This makes it safe to use the new instance concurrently with the original in separate threads. It is still unsafe to use a single ``Butler`` instance concurrently from multiple threads.