Prepare release of 0.29.28.

CHANGES.rst

@@ -2,6 +2,21 @@
 Cython Changelog
 ================
 
+0.29.28 (2022-02-16)
+====================
+
+Bugs fixed
+----------
+
+* Due to backwards incompatible changes in CPython 3.11a4, the feature flags
+  ``CYTHON_FAST_THREAD_STATE`` and ``CYTHON_USE_EXC_INFO_STACK`` are now disabled
+  in Python 3.11 and later.  They are enabled again in Cython 3.0.
+  Patch by David Woods.  (Github issue #4610)
+
+* A C compiler warning in older PyPy versions was resolved.
+  Patch by Matti Picus.  (Github issue #4236)
+
+
 0.29.27 (2022-01-28)
 ====================
 

Cython/Shadow.py

 # cython.* namespace for pure mode.
 from __future__ import absolute_import
 
-__version__ = "0.29.27"
+__version__ = "0.29.28"
 
 try:
     from __builtin__ import basestring