diff --git a/README.md b/README.md
index 33c3fddc4..def26b8eb 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,12 @@ The autogenerated OSAL user's guide can be viewed at <https://github.com/nasa/cF
 
 ## Version History
 
+### Development Build: v5.1.0-rc1+dev417
+
+- Fixes infinite loop  in `UtPrintx()`. Adds the data's memory address to output. Note, UtPrintf displays the the file/line of the `UtPrintx` function, **not the actual test location**; it is better to call `UT_BSP_DoText` directly.
+- Adds `OS_SocketShutdown()` API wrapper around BSD's socket shutdown() API. This allows a data transfer of a stream socket to be gracefully shut down prior to socket closure.
+- See osal <https://github.com/nasa/osal/pull/979> and <https://github.com/nasa/cFS/pull/252>
+
 ### Development Build: v5.1.0-rc1+dev411
 
 - [docs] Clarifies that that zero will be returned on EOF condition in the API documentation for OS_read/write/TimedRead/TimedWrite. In the case of the timed API calls, the `OS_ERR_TIMEOUT` status code will be returned if the timeout expired without the handle becoming readable/writable during that time.
diff --git a/src/os/inc/osapi-version.h b/src/os/inc/osapi-version.h
index 1a13fdb9a..25138e42c 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   411
+#define OS_BUILD_NUMBER   417
 #define OS_BUILD_BASELINE "v5.1.0-rc1"
 
 /*