I've just moved the VPS bastions to new hosts.  These hosts are in the new network region, and are also running Debian Stretch. This should be an almost fully-transparent change for all users. On your first use of ssh you may see a warning like:

Warning: Permanently added the ECDSA host key for IP address '185.15.56.13' to the list of known hosts.

That's just ssh adjusting to the new IP and is totally expected.

If you are in the habit of running local commands on the bastions, you may see some changes in behavior due to the new OS version.  But also, if you're in the habit of running local commands on the bastions, please don't do that :)

Toolforge users should be unaffected by this.  An equivalent change is coming up for toolforge but will be done at a later date.

Let me know you find any breakage or unexpected issues from this change!

-Andrew