Post version policy prominently

README.md

@@ -5,6 +5,13 @@
          align="right" alt="Promises/A+ logo" />
 </a>
 
+*This is Q version 1, from the `v1` branch in Git. This documentation applies to
+the latest of both the version 1 and version 0.9 release trains. These releases
+are stable. There will be no further releases of 0.9 after 0.9.7 which is nearly
+equivalent to version 1.0.0. All further releases of `q@~1.0` will be backward
+compatible. The version 2 release train introduces significant but
+backward-incompatible changes and is experimental at this time.*
+
 If a function cannot return a value or throw an exception without
 blocking, it can return a promise instead.  A promise is an object
 that represents the return value or the thrown exception that the