- 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.
diff --git a/PCbuild/readme.txt b/PCbuild/readme.txt
index f47d555..2146221 100644
--- a/PCbuild/readme.txt
+++ b/PCbuild/readme.txt
@@ -92,6 +92,9 @@
 _testcapi
     tests of the Python C API, run via Lib/test/test_capi.py, and
     implemented by module Modules/_testcapimodule.c
+_testbuffer
+    buffer protocol tests, run via Lib/test/test_buffer.py, and
+    implemented by module Modules/_testbuffer.c
 pyexpat
     Python wrapper for accelerated XML parsing, which incorporates stable
     code from the Expat project:  http://sourceforge.net/projects/expat/