README.md: add latest version

greenrobot · greenrobot · commit 3be80f73e7f6 · 2024-05-15T22:14:36.000+02:00
diff --git a/README.md b/README.md
@@ -64,6 +64,8 @@ box.remove(person)    # Delete
 
 Getting started
 ---------------
+Latest version: 4.0.0a0 (2024-05-15)
+
 To install or update the latest version of ObjectBox, run this:
 
 ```bash
