This is a wip pull request for merging Comment and Feed into Communication: https://github.com/frappe/frappe/pull/1532
This will enable us to paginate the timeline (which currently slows down document loading), as well as link all Comments/Communications to DocTypes like Customer, Supplier, etc. giving you a birds eye view of all the happenings for a particular Customer / Supplier!
If you have made any customizations using “Comment”, “Feed” or “Communication”, please share it. We might be able to prevent any downtime.