You have 2 options to use OpenCPN in OpenPlotter, from flatpak or from debian backports. By default opencpn is installed from debian backport and the new version 5.8.0 will still take a little longer, the flatpak version is already at 5.8.0.
You can use the o-charts plugin in opencpn 5.6.2 and your charts license will survive when you update to opencpn 5.8.0 in few days. Do not reinstall openplotter or you will lose the license.
Can I edit your post and replace 3.8.0 by 5.8.0?
You can use the o-charts plugin in opencpn 5.6.2 and your charts license will survive when you update to opencpn 5.8.0 in few days. Do not reinstall openplotter or you will lose the license.
Can I edit your post and replace 3.8.0 by 5.8.0?