Make buffer objects based on mutable objects (like array) safe.
diff --git a/Misc/NEWS b/Misc/NEWS
index 1fe8bf2..21114d4 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -172,6 +172,11 @@
to clear the error when attempts to get the __getstate__ attribute
fail caused intermittent errors and odd behavior.
+- buffer objects based on other objects no longer cache a pointer to
+ the data and the data length. Instead, the appropriate tp_as_buffer
+ method is called as necessary.
+
+
Extension modules
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