This is just a tracking task with blocking subtasks to track all the work that needs to happen before we can deploy to production
[X] Oct 29 - Nov 4: Parsoid/PHP deployed to the Parsoid cluster to process all changeprop traffic (mirrored from Parsoid/JS) from 10% to 100%.
[X] Nov 19: Parsoid/PHP deployed to testwiki and test2wki (VE, Content Translation use Parsoid/PHP).
[X] Nov 21: Parsoid/PHP deployed to mediawiki.org (VE uses Parsoid/PHP).
[] Nov25: Parsoid/PHP to be deployed to all private wikis (VE, Flow, Content Translation use Parsoid/PHP). An attempt on Nov 21 was rolled back because of T238849.
[] Nov 25: Enable Parsoid/PHP use for Flow on mediawiki.org
[] Nov 26: Parsoid/PHP to be deployed to some subset of non-wikipedia projects (VE, Content Translation , Media Content Service, Flow use Parsoid/PHP).
[] Week of Dec 2: Parsoid/PHP to be deployed on all other wikis. The pace of deployment depends on the the outcome of the previous steps. If necessary, we'll continue into the next week.