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Re: Upcoming transition to Stretch

On Fri, Jun 02, 2017 at 08:40:38AM -0500, Michael Milliman wrote:
> Thank you Siard and Greg.  This does clear up this part of the process.
> Currently, I have my sources.list pointed at Stretch, recently modified
> from pointing to Testing in anticipation of potential issues.  I think
> I'll go ahead and set it back to Testing (which is the same as Stretch
> at the moment, so it is just a name change) and see what the ride is
> like.  I can always point back to Stretch (then stable) and do some
> serious work in Synaptic if there is too much blood flowing :)

Uh, no.  If you track testing, and receive new packages after the release,
you will NOT be (guaranteed) able to go back to stretch.  Downgrading
has never been supported, and is manual and messy at best, impossible
at worst.

If you want to play around with testing in a reversible fashion, you
should set up either a chroot or a virtual machine.  (Or a separate
bootable partition, or a separate computer.)  Otherwise, once you bring
in something like libc6 post-release, you are *committed* to the next
testing cycle.