diff --git a/GITHUB_SHA.h b/GITHUB_SHA.h
index 0d3c4b6..93d8505 100644
--- a/GITHUB_SHA.h
+++ b/GITHUB_SHA.h
@@ -1 +1 @@
-#define GITHUB_SHA "devel-202503022043Z"
+#define GITHUB_SHA "devel-202503250850Z"
diff --git a/version.h b/version.h
index 8b0ad57..2854062 100644
--- a/version.h
+++ b/version.h
@@ -3,7 +3,8 @@
 
 #include "StringFormatter.h"
 
-#define VERSION "5.5.20"
+#define VERSION "5.5.21"
+// 5.5.21 - Backed out the broken merge with frequency change and 
 // 5.5.20 - EXRAIL SET/RESET assert fix  
 // 5.5.19 - Railcom change to use RailcomCollector device  
 // 5.5.18 - New STASH internals