diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3fe3c8796..dc33a0ca9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+##Development Build: v6.0.0-rc4+dev243
+- Wrong memory alignment calculation
+- See <https://github.com/nasa/osal/pull/1413>
+
 ## Development Build: v6.0.0-rc4+dev239
 - Add RTEMS console and timebase posix task names
 - See <https://github.com/nasa/osal/pull/1422>
diff --git a/src/os/inc/osapi-version.h b/src/os/inc/osapi-version.h
index 5ab1c1bb3..95d2ab90c 100644
--- a/src/os/inc/osapi-version.h
+++ b/src/os/inc/osapi-version.h
@@ -34,7 +34,7 @@
 /*
  * Development Build Macro Definitions
  */
-#define OS_BUILD_NUMBER   239
+#define OS_BUILD_NUMBER   243
 #define OS_BUILD_BASELINE "v6.0.0-rc4"
 
 /*