What has changed in the configuration file?

[Bzzzz]

Hi list,

I made an update that just upgraded WG to 0.0.20170517-wg2~zesty (on
Debian machines), but this time I'm left behind:

# ip link add dev wg0 type wireguard
# wg setconf wg0 vpnserver0.conf 
Line unrecognized: `Address=10.11.12.1/24'
Configuration parsing error

as 'man wg-quick' still contains an example using:
'Address = 10.200.100.8/24', I'm completely lost.

In fact, my configuration file is very close to the one described in
this man, so:

1- what has replaced the 'Address' primitive?

2- functional configuration files examples _updated_ on the site and in
   the man would be a nice idea.

Jean-Yves