diff --git a/src.ts/_version.ts b/src.ts/_version.ts
index 4ac1e9c86..134977469 100644
--- a/src.ts/_version.ts
+++ b/src.ts/_version.ts
@@ -1 +1 @@
-export const version = "4.0.0";
+export const version = "4.0.0-beta.0";