Today's RFC discussion was T172165, a proposal for MediaWiki 1.31 to
require PHP 7.0. There was no consensus on that proposal, due to the
opinion from Ops that it is not feasible to migrate all application
servers to Debian Stretch and PHP 7.0 by the expected release date of
June 2018.
However, there was consensus on the lesser goal of requiring PHP 5.6.
So, we have created a new RFC for PHP 5.6 (T178538) and are hereby
placing it into Last Call.
The proposal is: MediaWiki should bump its PHP requirement to 5.6 as
soon as possible, and at the latest in time for the 1.31 branch point
(i.e. April 2018).
"As soon as possible" means as soon as the few remaining uses of PHP
5.5 in the WMF cluster have been migrated to PHP 5.6 or later, or to
HHVM. We'd like to see this migration work be given a high priority.
If you have any objection to this proposal, please raise it on
Phabricator before the end of the Last Call period, which will be
October 31.
https://phabricator.wikimedia.org/T178538
-- Tim Starling