Merge branch '0.28.x' into 0.29.x

CHANGES.rst

@@ -220,9 +220,26 @@ Other changes
   slightly slower, by about 5-7%.
 
 
+0.28.6 (2018-11-01)
+===================
+
+Bugs fixed
+----------
+
+* Extensions compiled with MinGW-64 under Windows could misinterpret integer
+  objects larger than 15 bit and return incorrect results.
+  (Github issue #2670)
+
+* Multiplied string literals lost their factor when they are part of another
+  constant expression (e.g. 'x' * 10 + 'y' => 'xy').
+
+
 0.28.5 (2018-08-03)
 ===================
 
+Bugs fixed
+----------
+
 * The discouraged usage of GCC's attribute ``optimize("Os")`` was replaced by the
   similar attribute ``cold`` to reduce the code impact of the module init functions.
   (Github issue #2494)