Migrating SSRS from SQL Server 2012 to 2016

I have a requirement of migrating my whole SQL Server from SQL Server 2012 to 2016. I have already migrated the database engine part. I have not really worked on SSRS (the reporting part), so I need some assistance there. I will be taking the following steps: 1. I have to backup and restore the ReportServer database and ReportServerTempDB 2. I have to backup and restore the encryption keys 3. I will configure SSRS through Reporting Server Configuration Manager What else should I do to run the reports here on SQL 2016 the same as on SQL 2012? I have heard we have to manually copy some RDL files to new server, etc.