diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index e7fcefc1..270113e3 100755
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -176,7 +176,7 @@
  * Select a secondary serial port on the board to use for communication with the host.
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7]
  */
-//#define SERIAL_PORT_2 2 // D16(RX) + D17(TX)
+#define SERIAL_PORT_2 2 // D16(RX) + D17(TX)
 
 /* EXP1 Header
     
diff --git a/Marlin/src/inc/Version.h b/Marlin/src/inc/Version.h
index dfea4358..983cc6a6 100755
--- a/Marlin/src/inc/Version.h
+++ b/Marlin/src/inc/Version.h
@@ -41,10 +41,10 @@
  * here we define this default string as the date where the latest release
  * version was tagged.
  */
- #define CUSTOM_BUILD_VERSION "1.3.0-beta.2"
+ #define CUSTOM_BUILD_VERSION "1.3.0-beta.3"
 
 #ifndef STRING_DISTRIBUTION_DATE
-  #define STRING_DISTRIBUTION_DATE "2021-09-04"
+  #define STRING_DISTRIBUTION_DATE "2021-09-13"
 #endif
 
 /**