Review the source and file type
Know where the file came from and whether the archive type matches what you expected. Surprise executables are unnecessary for normal mod installation.
Protect your data
Back up worlds and important configuration files, with the backup stored separately from the active profile.
Test in a clean profile
A disposable profile limits the impact of mistakes and makes version mismatches easier to see.
Know how to roll back
Write down the game, loader, mod and dependency versions used by the working profile before updating.
Practical takeaway
Keep the setup reversible. A separate profile, a world backup and a written record of versions make updates and troubleshooting far easier than reconstructing a working environment after several changes.
Continue with the compatibility overview or review the Valkyrien Skies Mod FAQ .