Upgrading MacOS From 10.9.5 To 10.13 - MacPorts Implications

[Chris Jones]

> My next visit to this site may be a brief one. If I only have time to do 
> the MacOS upgrade, but not the MacPorts migration, will the MacPorts 
> binaries that I have already installed continue to work under the new 
> OS, or is there a chance that some will fail?

10.9.x to 1013.x is a big jump. There is a very good chance a number 
will fail. You should plan the OS update for a time you can also 
properly migrate MacPorts.