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+Version 1.5
+-----------
+
+Unreleased
+
+-   Support Python >= 3.7 and PyPy. Python 2, Python < 3.7, and Jython
+    may continue to work, but the next release will make incompatible
+    changes.
+
+
+Version 1.4
+-----------
+
+Released 2015-07-23
+
+-   Verified Python 3.4 support, no changes needed.
+-   Additional bookkeeping cleanup for non-``ANY`` connections at
+    disconnect time.
+-   Added ``Signal._cleanup_bookeeping()`` to prune stale bookkeeping on
+    demand.
+
+
+Version 1.3
+-----------
+
+Released 2013-07-03
+
+-   The global signal stash behind ``signal()`` is now backed by a
+    regular name-to-``Signal`` dictionary. Previously, weak references
+    were held in the mapping and ephermal usage in code like
+    ``signal('foo').connect(...)`` could have surprising program
+    behavior depending on import order of modules.
+-   ``Namespace`` is now built on a regular dict. Use ``WeakNamespace``
+    for the older, weak-referencing behavior.
+-   ``Signal.connect('text-sender')`` uses an alterate hashing strategy
+    to avoid sharp edges in text identity.
+
+
+Version 1.2
+-----------
+
+Released 2011-10-26
+
+-   Added ``Signal.receiver_connected`` and
+    ``Signal.receiver_disconnected`` per-``Signal`` signals.
+-   Deprecated the global ``receiver_connected`` signal.
+-   Verified Python 3.2 support, no changes needed.
+
+
+Version 1.1
+-----------
+
+Released 2010-07-21
+
+-   Added ``@signal.connect_via(sender)`` decorator
+-   Added ``signal.connected_to`` shorthand name for the
+    ``temporarily_connected_to`` context manager.
+
+
+Version 1.0
+-----------
+
+Released 2010-03-28
+
+-   Python 3.0 and 3.1 compatibility.
+
+
+Version 0.9
+-----------
+
+Released 2010-02-26
+
+-   Added ``Signal.temporarily_connected_to`` context manager.
+-   Docs! Sphinx docs, project web site.
+
+
+Version 0.8
+-----------
+
+Released 2010-02-14
+
+-   Initial release.
+-   Extracted from ``flatland.util.signals``.
+-   Added Python 2.4 compatibility.
+-   Added nearly functional Python 3.1 compatibility. Everything except
+    connecting to instance methods seems to work.