fix release notes

Author: MOmarMiraj

src/release/RELEASE-NOTES

@@ -54,4 +54,6 @@ After:
         print(vault.title)
 ```
 
-*  All functions that return an Iterator will now return the appropriate list type.
+*  All functions that return an Iterator will now return the appropriate list type.
+
+This does not affect any code already deployed, and will not take effect in your codebase until you choose to update to v0.3.0+ of the 1Password Python SDK