diff --git a/Spice-SDK.md b/Spice-SDK.md
index 1e7ec94..2bc98e8 100644
--- a/Spice-SDK.md
+++ b/Spice-SDK.md
@@ -4,6 +4,8 @@ Once initialized, you can call directly into helper routines provided by Spiceto
 
 This is meant to be an alternative to writing applications over Spice API; as the API uses JSON objects over the network (or serial), there are issues with performance if you're trying to write a custom controller I/O module, for example.
 
+Currently, the SDK does not implement everything the API has. They are not meant to be in sync; two surfaces will diverge.
+
 ## Instructions
 
 #### Include header files