How to seamlessly switch from a standard MacPorts install to trunk?

[Ryan Schmidt]

On Feb 16, 2014, at 06:34, MK-MacPorts at techno.ms wrote:

> On 10 Feb 2014, at 12:01 , Clemens Lang <cal at macports.org> wrote:
>> You can just install trunk right over your old installation… Note that selfupdate will no longer do anything once you installed trunk. If you want to update your MacPorts installation you need to svn up your working copy of trunk and run the install process again.
> The latter is something I don’t really want to risk...

What risk are you envisioning?