diff --git a/README.md b/README.md
index 857202b..9a12760 100644
--- a/README.md
+++ b/README.md
@@ -58,9 +58,14 @@ you should put the following in your split configuration file:
 ]
 ```
 
-Semaphore uses Split configurations to split your test files based on their
+Semaphore Classic uses Split configurations to split your test files based on their
 durations in the previous builds.
 
+**NOTE**
+
+Distributing tests based on their duration is not supported in Semaphore 2.0.
+If you use Semaphore 2.0, provide a split configuration file to achieve the best performance.
+
 ### Leftover Files
 
 Files that are part of your test suite, but are not in the split