expose PYTHON_API_VERSION macro as sys.api_version.  Closes patch # 601456.
diff --git a/Misc/NEWS b/Misc/NEWS
index ad87762..37ed63a 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -303,6 +303,10 @@
 - signal.sigpending, signal.sigprocmask and signal.sigsuspend have
   been added where available.
 
+- The sys module acquired a new attribute, api_version, which evaluates
+  to the value of the PYTHON_API_VERSION macro with which the
+  interpreter was compiled.
+
 Library
 
 - New module: sets, defines the class Set that implements a mutable