- Issue #10181: New memoryview implementation fixes multiple ownership

and lifetime issues of dynamically allocated Py_buffer members (#9990)
  as well as crashes (#8305, #7433). Many new features have been added
  (See whatsnew/3.3), and the documentation has been updated extensively.
  The ndarray test object from _testbuffer.c implements all aspects of
  PEP-3118, so further development towards the complete implementation
  of the PEP can proceed in a test-driven manner.

  Thanks to Nick Coghlan, Antoine Pitrou and Pauli Virtanen for review
  and many ideas.

- Issue #12834: Fix incorrect results of memoryview.tobytes() for
  non-contiguous arrays.

- Issue #5231: Introduce memoryview.cast() method that allows changing
  format and shape without making a copy of the underlying memory.

Misc/valgrind-python.supp

@@ -412,4 +412,15 @@
    fun:SHA1_Update
 }
 
+{
+   test_buffer_non_debug
+   Memcheck:Addr4
+   fun:PyUnicodeUCS2_FSConverter
+}
+
+{
+   test_buffer_non_debug
+   Memcheck:Addr4
+   fun:PyUnicode_FSConverter
+}