IT:AD:sql server howto connect to localdb

I used to use a connection string that was specific to the version:

  <connectionStrings>
    <add name="AppDbContext" connectionString="data source=(LocalDb)\v11.0;initial catalog=App_SS_02;integrated security=True;MultipleActiveResultSets=True;" providerName="System.Data.SqlClient" />
  </connectionStrings>
  

But the following is better:

  <connectionStrings>
    <add name="AppDbContext" connectionString="data source=(localDB)\MSSQLLocalDB;initial catalog=App_SS_02;integrated security=True;MultipleActiveResultSets=True;" providerName="System.Data.SqlClient" />
  </connectionStrings>