This release is fully compatible with the previous v2.1.0 release and no logic or UI has changed. However, the codebase has been massively improved by converting all server-side code to typescript. In addition, many core dependencies have been updated to newer versions.
This should make VOTE much safer with strict type checking, as well as make future changes easier and safer. This is a first step in modernizing the codebase, where next we will be rewriting the frontend to something other than AngularJS (EOL mid 2023).