merged 0.17 branch into master

diff --cc CHANGES.rst
index 23e2507,73dd7f3..819e666
--- 1/CHANGES.rst
--- 2/CHANGES.rst
+++ b/CHANGES.rst
@@@ -13,8 -13,12 +13,14 @@@ Features adde
  Bugs fixed
  ----------
  
+ * Replacing an object reference with the value of one of its cdef attributes could generate incorrect C code that accessed the object after deleting its last reference.
+ 
+ * C-to-Python type coercions during cascaded comparisons could generate invalid C code, specifically when using the 'in' operator.
+ 
+ * "obj[1,]" passed a single integer into the item getter instead of a tuple.
+ 
 +* "obj[1,]" passed a single integer into the item getter instead of a tuple.
 +
  * Cyclic imports at module init time did not work in Py3.
  
  * The names of C++ destructors for template classes were built incorrectly.