Kaltura Community Edition 11.21.0-2 installed to deb based Linux dist database migration to new version

Since upgrading the oldest setup is giving me a lot of unknown issues (Issue in upgrading Kaltura Community Edition 11.21.0-2 installed to deb based Linux dist).

I am approaching either of these two plan:

  1. migrate Kaltura Community Edition 11.21.0-2 database into the latest version, is it possible to migrate the database from the old version (Community Edition 11.21.0-2 ) to the latest version (installed fresh Kaltura CE 16.14.0)? If yes could you please provide the direction to do that?
  2. Install the old Kaltura Community Edition 11.21.0-2 into the new instance and migrate the old database into that same version Kaltura CE instance. Then upgrade the version following standard instruction on https://github.com/kaltura/platform-install-packages/blob/master/doc/install-kaltura-deb-based.md . If so how can I install the particular Kaltura Community Edition 11.21.0-2? Could you please give me some info or direction?
    Thanks.