What webpage did you get under the heading “Upgrading from Earlier Versions of JMRI” ?
is the current install page for Windows. You should be able to just run the installer, check the box for backup existing files.
--
Peter Ulvestad
Linux Mint 22.1, JMRI 5.11.3plus, Java 21.0.5
JMRI Users Group Moderator (
/g/jmriusers )
JMRI Developers Group Moderator ( )
Tam Valley Group Moderator ( )
Sprog-DCC Group Moderator ( )
Edmonton Model Railroad Association ( )