diff --git a/README.md b/README.md
index e5e1a09db..39572f0a3 100644
--- a/README.md
+++ b/README.md
@@ -10,14 +10,12 @@ The autogenerated OSAL user's guide can be viewed at <https://github.com/nasa/cF
 
 ## Version History
 
-### Development Build: 5.1.0-rc1+dev27
-
-- Introduces a new typedef, osal_id_t, in common_types.h, which should be used to represent an OSAL ID. All API structures/functions are updated to use this typedef in place of the uint32 type wherever it actually refers to an OSAL ID.
-- Fail tests on startup or tear down failures. These are failures, just a different severity (likely mean the test didn't work as expected and needs to be fixed).
-- Max timer create test was using OS_MAX_TIMERS (the limit for adding timers to a time base), but creating timers is limited by OS_MAX_TIMEBASES since the create adds a new time base.
-- HOTFIX 20200902 - Fix documentation warnings in OSAL.
-- HOTFIX 20200902 - Hide the call graph on utility functions.
-- See <https://github.com/nasa/osal/pull/590>
+### Development Build: 5.1.0-rc1+dev34
+
+- Move this existing function into the public API, as it is performs more verification than the OS_ConvertToArrayIndex
+function.
+- The C library type is signed, and this makes the result check work as intended.
+- See <https://github.com/nasa/osal/pull/596>
 
 ### Development Build: 5.1.0-rc1+dev16
 
diff --git a/src/os/inc/osapi-version.h b/src/os/inc/osapi-version.h
index 1600d90be..91e9a9a19 100644
--- a/src/os/inc/osapi-version.h
+++ b/src/os/inc/osapi-version.h
@@ -30,7 +30,7 @@
 /*
  * Development Build Macro Definitions
  */
-#define OS_BUILD_NUMBER 27 
+#define OS_BUILD_NUMBER 34 
 #define OS_BUILD_BASELINE "v5.1.0-rc1"
 
 /*