diff --git a/requirement-and-installation/build-from-source.md b/requirement-and-installation/build-from-source.md
index 3e9547f..10caa90 100644
--- a/requirement-and-installation/build-from-source.md
+++ b/requirement-and-installation/build-from-source.md
@@ -1,5 +1,12 @@
 # Build from Source
 
+:::warning
+Please note that you should not switch between running unreleased code
+from git branches and official releases of Rotki on the same [data
+set](../usage-guides/data-directory.md), as unreleased code does not
+provide guarantees around forward-compatibility of data schemas etc.
+:::
+
 ## Prerequisites
 
 Before starting, ensure you have the following installed: