Changed version to 2.1

CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.10)
 
-project(SealPIR VERSION 2.0 LANGUAGES CXX)
+project(SealPIR VERSION 2.1 LANGUAGES CXX)
 
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin)