Prepare for rc1 release (#178)

Author: johanwilfer

change-log-6.0-and-versions.md

@@ -1,7 +1,7 @@
 Versions from 6.0
 -----------------
 
-### Not yet released!
+### 2024-04-25 : updates for 6.0.0-rc1 version
 
 **New features**
 - Add support for MongoDB