how to transfer old save file to new version?

Issue description

how to transfer old save file to new version?

thanks.

Expected behavior

teaching me pls.

Game version

V0.5.0C

Save from 0.4 cannot be played on 0.5 ((Update 1). If you wish to play the old version you can switch it on Steam by going to ea-legacy version, you can also create blueprints to take your favorite designs with you.

OK, got it.
Thank you.