[doc] updates #42

chapters/platform_features.md

@@ -191,8 +191,11 @@ or with the `redis` module:
       // You are now authed with your redis.
     });
 
-**Note:** You have to explicitly tell `node_redis` to use its javascript parser instead of the one written in C, because the latter
-is causing problems on nodejitsu. Check out the other possible options in the [node redis docs](https://github.com/mranney/node_redis#rediscreateclientport-host-options).
+**Note:** If you are using an older version of `node_redis`, You may have to 
+explicitly use its javascript parser instead of the optional native module `hiredis` 
+that may be packaged with it, as there are issues compiling on the nodejitsu 
+platform. Check out the other possible options in the 
+[node redis docs](https://github.com/mranney/node_redis#rediscreateclientport-host-options).
 
 ## Environment Variable Management