diff --git a/R/onAttach.R b/R/rhooks.R
similarity index 74%
rename from R/onAttach.R
rename to R/rhooks.R
index 99bc064..17b1ca1 100644
--- a/R/onAttach.R
+++ b/R/rhooks.R
@@ -17,9 +17,13 @@
             ver.mess1 <- paste0("WARNING: Your current version of ", pkgname, " (v", ver, ") is not up-to-date")
             ver.mess <- paste0("Get the latest stable version (", latest.ver,
                                ") using <devtools::install_github('SantanderMetGroup/", pkgname, "')>")
-            packageStartupMessage(ver.mess1)
-            packageStartupMessage(ver.mess)
+        } else if (ver > latest.ver) {
+            ver.mess1 <- paste0("WARNING: Your current version of ", pkgname, " (v", ver, 
+                                ") is ahead of the master branch version (latest.ver)")
+            ver.mess <- paste0("Development version may have an unexpected behaviour")
         }
+        packageStartupMessage(ver.mess1)
+        packageStartupMessage(ver.mess)
     }
 }
 # End