Update CMakeLists.txt file

- add new version

CMakeLists.txt

@@ -4,7 +4,7 @@
 
 cmake_minimum_required(VERSION 3.17)
 set(PROJECT_NAME ls_std)
-set(RELEASE_VERSION 2020.2.3)
+set(RELEASE_VERSION 2020.3.0)
 project(${PROJECT_NAME})
 
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