diff --git a/ARM.CMSIS.pdsc b/ARM.CMSIS.pdsc
index c72a9a4..1b5c16c 100644
--- a/ARM.CMSIS.pdsc
+++ b/ARM.CMSIS.pdsc
@@ -14,7 +14,8 @@
       - Updated Cortex-A core functions
       - Updated Startup and System files 
       CMSIS-RTOS2:
-      - RTX5: added support for Cortex-A 
+      - API 2.1.1 (see revision history for details)
+      - RTX 5.2.0 (see revision history for details)
     </release>
     <release version="5.0.2-dev2">
       CMSIS-RTOS2:
@@ -559,13 +560,14 @@
         <file category="doc" name="CMSIS/Documentation/RTOS/html/index.html"/>
       </files>
     </api>
-    <api Cclass="CMSIS" Cgroup="RTOS2" Capiversion="2.1.0" exclusive="1">
+    <api Cclass="CMSIS" Cgroup="RTOS2" Capiversion="2.1.1" exclusive="1">
       <description>CMSIS-RTOS API for Cortex-M, SC000, and SC300</description>
       <files>
         <file category="doc" name="CMSIS/Documentation/RTOS2/html/index.html"/>
         <file category="header" name="CMSIS/RTOS2/Include/cmsis_os2.h"/>
       </files>
     </api>
+    <!-- CMSIS Driver API -->
     <api Cclass="CMSIS Driver" Cgroup="USART" Capiversion="2.3.0" exclusive="0">
       <description>USART Driver API for Cortex-M</description>
       <files>
@@ -2362,7 +2364,7 @@
     </component>
 
     <!-- CMSIS-RTOS Keil RTX5 component -->
-    <component Cclass="CMSIS" Cgroup="RTOS" Csub="Keil RTX5" Cversion="5.1.1" Capiversion="1.0.0" condition="RTOS RTX5">
+    <component Cclass="CMSIS" Cgroup="RTOS" Csub="Keil RTX5" Cversion="5.2.0" Capiversion="1.0.0" condition="RTOS RTX5">
       <description>CMSIS-RTOS RTX5 implementation for Cortex-M, SC000, and SC300</description>
       <RTE_Components_h>
         <!-- the following content goes into file 'RTE_Components.h' -->
@@ -2378,7 +2380,7 @@
     </component>
 
     <!-- CMSIS-RTOS2 Keil RTX5 component -->
-    <component Cclass="CMSIS" Cgroup="RTOS2" Csub="Keil RTX5" Cvariant="Library" Cversion="5.1.1" Capiversion="2.1.0" condition="RTOS2 RTX5 Lib">
+    <component Cclass="CMSIS" Cgroup="RTOS2" Csub="Keil RTX5" Cvariant="Library" Cversion="5.2.0" Capiversion="2.1.1" condition="RTOS2 RTX5 Lib">
       <description>CMSIS-RTOS2 RTX5 for Cortex-M, SC000, C300 and ARMv8-M (Library)</description>
       <RTE_Components_h>
         <!-- the following content goes into file 'RTE_Components.h' -->
@@ -2447,7 +2449,7 @@
         <file category="library" condition="CM7_FP_LE_IAR"        name="CMSIS/RTOS2/RTX/Library/IAR/RTX_CM4F.a"     src="CMSIS/RTOS2/RTX/Source"/>
       </files>
     </component>
-    <component Cclass="CMSIS" Cgroup="RTOS2" Csub="Keil RTX5" Cvariant="Library_NS" Cversion="5.1.1" Capiversion="2.1.0" condition="RTOS2 RTX5 NS">
+    <component Cclass="CMSIS" Cgroup="RTOS2" Csub="Keil RTX5" Cvariant="Library_NS" Cversion="5.2.0" Capiversion="2.1.1" condition="RTOS2 RTX5 NS">
       <description>CMSIS-RTOS2 RTX5 for ARMv8-M Non-Secure Domain (Library)</description>
       <RTE_Components_h>
         <!-- the following content goes into file 'RTE_Components.h' -->
@@ -2497,7 +2499,7 @@
         <file category="library" condition="ARMv8MML_FP_LE_GCC"   name="CMSIS/RTOS2/RTX/Library/GCC/libRTX_V8MMFN.a" src="CMSIS/RTOS2/RTX/Source"/>
       </files>
     </component>
-    <component Cclass="CMSIS" Cgroup="RTOS2" Csub="Keil RTX5" Cvariant="Source" Cversion="5.1.1" Capiversion="2.1.0" condition="RTOS2 RTX5">
+    <component Cclass="CMSIS" Cgroup="RTOS2" Csub="Keil RTX5" Cvariant="Source" Cversion="5.2.0" Capiversion="2.1.1" condition="RTOS2 RTX5">
       <description>CMSIS-RTOS2 RTX5 for Cortex-M, SC000, C300 and ARMv8-M (Source)</description>
       <RTE_Components_h>
         <!-- the following content goes into file 'RTE_Components.h' -->
@@ -2586,7 +2588,7 @@
         <file category="source" name="CMSIS/RTOS2/RTX/Source/IAR/irq_cm4f.s"        condition="CM7_FP_IAR"/>
       </files>
     </component>
-    <component Cclass="CMSIS" Cgroup="RTOS2" Csub="Keil RTX5" Cvariant="Source_NS" Cversion="5.1.1" Capiversion="2.1.0" condition="RTOS2 RTX5 NS">
+    <component Cclass="CMSIS" Cgroup="RTOS2" Csub="Keil RTX5" Cvariant="Source_NS" Cversion="5.2.0" Capiversion="2.1.1" condition="RTOS2 RTX5 NS">
       <description>CMSIS-RTOS2 RTX5 for ARMv8-M Non-Secure Domain (Source)</description>
       <RTE_Components_h>
         <!-- the following content goes into file 'RTE_Components.h' -->