diff --git a/README.md b/README.md
index 362fae8..6bb54e9 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,5 @@
 # vulkan-loader
 
-Vulkan Loader.
+The ICD loader is a library that is placed between a Vulkan application and any number of Vulkan drivers, in order to support multiple drivers and the instance-level functionality that works across these drivers.
+Additionally, the loader manages inserting Vulkan layer libraries, such as validation layers, between an application and the drivers.
 
diff --git a/vulkan-loader.spec b/vulkan-loader.spec
index 9b0f40b..24a1c3f 100644
--- a/vulkan-loader.spec
+++ b/vulkan-loader.spec
@@ -1,13 +1,12 @@
 Name:          vulkan-loader
-Version:       1.2.135
+Version:       1.2.166
 Release:       1mamba
-Summary:       Vulkan Loader library
+Summary:       A library that is placed between a Vulkan application and any number of Vulkan drivers, in order to support multiple drivers
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           https://github.com/KhronosGroup/Vulkan-Loader.git
-## GITSOURCE https://github.com/KhronosGroup/Vulkan-Loader.git v1.2.134
 Source:        https://github.com/KhronosGroup/Vulkan-Loader.git/v%{version}/Vulkan-Loader-%{version}.tar.bz2
 License:       Apache License 2.0
 ## AUTOBUILDREQ-BEGIN
@@ -20,7 +19,8 @@ Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
-Vulkan Loader.
+The ICD loader is a library that is placed between a Vulkan application and any number of Vulkan drivers, in order to support multiple drivers and the instance-level functionality that works across these drivers.
+Additionally, the loader manages inserting Vulkan layer libraries, such as validation layers, between an application and the drivers.
 
 %package -n libvulkan
 Group:         System/Libraries
@@ -69,6 +69,9 @@ This package contains libraries and header files for developing applications tha
 %doc README.md
 
 %changelog
+* Wed Jan 06 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 1.2.166-1mamba
+- update to 1.2.166
+
 * Tue Mar 31 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 1.2.135-1mamba
 - update to 1.2.135