-- Sent from Hotmail Email App for Android Monday, 28 January 2019, 11:37pm +08:00 from Victoria Coleman vcoleman(a)wikimedia.org : >This is fantastic news Giuseppe! A terrific milestone representing tons of work by many people! Kudos to all involved! > >Best regards, > >Victoria > >Sent from my iPhone > > On Jan 28, 2019, at 6:31 AM, Giuseppe Lavagetto < glavagetto(a)wikimedia.org&gt; wrote: > > Hi all, > > as some of you might know, HHVM has decided some time ago to drop support > for PHP, choosing to only support Hack (Facebook's own PHP-derivative > language)[1]. > > This forced us to consider alternatives. In particular the last major > upgrade to PHP, PHP 7, was supposed to have greatly improved the > performance of the runtime, guaranteeing performance on par with HHVM. > > Given that early tests[2] showed promising performance, we decided to work > on PHP7 support and on its rollout in production. > > I'm happy to announce that PHP 7 is now available as a beta feature on all > wikis, and I encourage everyone to try it out and report bugs using the > #php7.2-support tag. > > After this period of beta testing, we will proceed with a progressive > rollout to a growing percentage of users, and hopefully we'll complete the > transition in the next four months. > > A huge thank you to all the people who worked hard to reach this goal! > > Thanks, > > Giuseppe > [1] https://hhvm.com/blog/2017/09/18/the-future-of-hhvm.html > [2] > https://lists.wikimedia.org/pipermail/wikitech-l/2017-September/088854.html > -- > Giuseppe Lavagetto > Principal Site Reliability Engineer, Wikimedia Foundation > _______________________________________________ > Wikitech-l mailing list > Wikitech-l(a)lists.wikimedia.org > https://lists.wikimedia.org/mailman/listinfo/wikitech-l > >_______________________________________________ >Wikitech-l mailing list &gt;Wikitech-l(a)lists.wikimedia.org >https://lists.wikimedia.org/mailman/listinfo/wikitech-l

Dan and others, On Thu, Jan 31, 2019 at 9:14 AM Dan Garry (Deskana) &lt;djgwiki(a)gmail.com&gt; wrote: I am an outsider to the process, but maybe I can give some examples. In theory "everything should work" -in reality these are some of the issues: * Configuration and the environment may not be 100% equal -lots of backend changes-, leading to different results e.g. <https://phabricator.wikimedia.org/T214660> * Edge cases may be fixed automagically, or break with the new setup e.g. <https://phabricator.wikimedia.org/T214984> * Performance may be different, while I've been told in general things are looking faster, there could be also regressions <https://phabricator.wikimedia.org/T176370#4789096> * Continuous integration and testing may need double checking and fixing <https://phabricator.wikimedia.org/T211470> * ... In general they are the same issues that would arise from migrating from a major upgrade (e.g. PHP 5 to PHP 7). Your bug reports and the kind comments here, and on places such as https://www.mediawiki.org/wiki/Topic:Usx7uerq380mzwq3 I believe are highly motivational for the many teams involved, thanks! Also many thanks for all the people, developers, testers and people in infrastructure for making this possible!