Prior to deploying page previews to all wikis, we would like to switch to the new summary endpoint so that all users will be able to see html previews
- Ensure all subtasks are closed before picking up this task.
- Switch all projects to new summary endpoint
- Perform a full round of QA on feature
- Announce switch (village pumps, wikitech-l)
- Add the deployment to the Readers Web Release Timeline page.