Unrar the Dragon.Star.Varnir.Update.v20200407-CODEX.rar file. Run Setup: Execute the setup.exe found inside.
While the specific NFO text is a technical manifest, this particular update primarily addressed: Dragon.Star.Varnir.Update.v20200407-CODEX.rar
Continued improvements for Windows 10 performance. Unrar the Dragon
After installation, copy the contents of the CODEX folder inside the update into your game directory, overwriting existing files. Dragon.Star.Varnir.Update.v20200407-CODEX.rar
The "proper" (NFO) for the release details a minor update for the PC version of the game. Release Details Game Name: Dragon Star Varnir Update Version: v20200407 Group: CODEX Release Date: April 7, 2020 (as indicated by the filename). Update Notes (NFO Summary)