diff --git a/README.md b/README.md
index 5b3857e49..befb370c2 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,22 @@ The autogenerated OSAL user's guide can be viewed at <https://github.com/nasa/cF
 
 ## Version History
 
+### Development Build: v5.1.0-rc1+dev293
+
+- Avoids various "possible uninitialized variable" warnings for routines that utilize this API.
+- Renames `sockaddr*` structures to `sa*` to deconflict from structure name in `os-impl-bsd-sockets.c`. Adds `OS_NETWORK_SUPPORTS_IPV6` to `os-impl-bsd-sockets.c` compilation. Renames `bsd-select-stubs.c` to `sys-select-stubs.c`. Coverage now includes all currently possible files in VxWorks build
+- Resolves CodeQL security warning by restricting permissions on file create.
+- Changes comments using "cpp" comment style to "c" style
+- Adds _new_ accessor functions APIs to get version strings and return the values of string macros defined in `osapi-version.h`.
+  - The "simple" version currently `OS_VERSION` macro - this is the semantic version without any extra detail.  This is returned by `OS_GetVersion()`.
+  - The "descriptive" version in `OS_VERSION_STRING` macro - this has extra detail like the most recent official release.  This is returned by `OS_GetVersionDescription()`.
+  - The release code name, now returned by `OS_GetVersionDescription()`.  
+- These accessor functions are the preferred way to get the OSAL version string, from now on users should avoid using the macro definitions as it is evaluated at OSAL library compile time, rather than application compile time, and thus will remain correct in the event that OSAL is relinked without recompiling the application.
+Adds `osapi-version.c` to implement these 3 calls and associated coverage test. This allows the version.c file to be auto-generated in the future.
+- See <https://github.com/nasa/osal/pull/835>
+
+
+
 ### Development Build: v5.1.0-rc1+dev280
 
 - Makes tests skip after getting their first not implemented error.
diff --git a/src/os/inc/osapi-version.h b/src/os/inc/osapi-version.h
index d751f2745..727314ed2 100644
--- a/src/os/inc/osapi-version.h
+++ b/src/os/inc/osapi-version.h
@@ -1,4 +1,4 @@
-/*
+293/*
  *  NASA Docket No. GSC-18,370-1, and identified as "Operating System Abstraction Layer"
  *
  *  Copyright (c) 2019 United States Government as represented by
@@ -32,7 +32,7 @@
 /*
  * Development Build Macro Definitions
  */
-#define OS_BUILD_NUMBER   280
+#define OS_BUILD_NUMBER   293
 #define OS_BUILD_BASELINE "v5.1.0-rc1"
 
 /*