improve abstract property support (closes #11610)
Thanks to Darren Dale for patch.
diff --git a/Misc/ACKS b/Misc/ACKS
index c74b811..e47d738 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -220,6 +220,7 @@
Antonio Cuni
Brian Curtin
Lisandro Dalcin
+Darren Dale
Andrew Dalke
Lars Damerow
Evan Dandrea
diff --git a/Misc/NEWS b/Misc/NEWS
index cd9b061..ddf15a0 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -416,6 +416,8 @@
Library
-------
+- Issue #11610: Introduce a more general way to declare abstract properties.
+
- Issue #13591: A bug in importlib has been fixed that caused import_module
to load a module twice.