Bump to 3.7.0a0
diff --git a/Doc/whatsnew/index.rst b/Doc/whatsnew/index.rst
index 7c92524..160b364 100644
--- a/Doc/whatsnew/index.rst
+++ b/Doc/whatsnew/index.rst
@@ -11,6 +11,7 @@
 .. toctree::
    :maxdepth: 2
 
+   3.7.rst
    3.6.rst
    3.5.rst
    3.4.rst