diff --git a/README.txt b/README.txt
index e9018043..99a46966 100644
--- a/README.txt
+++ b/README.txt
@@ -38,4 +38,7 @@ Both are from Tag 21.08
 The following changes were made:
 
  - platform-2021.08 top folder renamed to mpfs and located at modules/hal/microchip
- - The applications/mpfs-pmp-demo/mpfs-pmp-app-u54-1/src/boards folder is copied to modules/hal/microchip/mpfs
\ No newline at end of file
+ - The applications/mpfs-pmp-demo/mpfs-pmp-app-u54-1/src/boards folder is copied to modules/hal/microchip/mpfs
+
+-----------------------------------------------------
+2024-04-04 change default branch from master to main.