Document changes to OS X installer configurations for 2.7.7.
As of 2.7.8, the 32-bit-only installer will support OS X 10.5
and later systems as is currently done for Python 3.x installers.

For 2.7.7 only, we will provide three installers:
the legacy deprecated 10.3+ 32-bit-only format;
the newer 10.5+ 32-bit-only format;
and the unchanged 10.6+ 64-/32-bit format.

Although binary installers will no longer be available from
python.org as of 2.7.8, it will still be possible to build from
source on 10.3.9 and 10.4 systems if necessary.
diff --git a/Misc/NEWS b/Misc/NEWS
index aac0204..646f4cb 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -436,6 +436,20 @@
 - Issue #21303, #20565: Updated the version of Tcl/Tk included in the
   installer from 8.5.2 to 8.5.15.
 
+Mac OS X
+--------
+
+- As of 2.7.8, the 32-bit-only installer will support OS X 10.5
+  and later systems as is currently done for Python 3.x installers.
+  For 2.7.7 only, we will provide three installers:
+  the legacy deprecated 10.3+ 32-bit-only format;
+  the newer 10.5+ 32-bit-only format;
+  and the unchanged 10.6+ 64-/32-bit format.
+  Although binary installers will no longer be available from
+  python.org as of 2.7.8, it will still be possible to build from
+  source on 10.3.9 and 10.4 systems if necessary.
+  See Mac/BuildScript/README.txt for more information.
+
 
 Whats' New in Python 2.7.6?
 ===========================