{"action":"opened","issue":{"url":"https://api.github.com/repos/matrix-org/matrix-doc/issues/1319","repository_url":"https://api.github.com/repos/matrix-org/matrix-doc","labels_url":"https://api.github.com/repos/matrix-org/matrix-doc/issues/1319/labels{/name}","comments_url":"https://api.github.com/repos/matrix-org/matrix-doc/issues/1319/comments","events_url":"https://api.github.com/repos/matrix-org/matrix-doc/issues/1319/events","html_url":"https://github.com/matrix-org/matrix-doc/issues/1319","id":334032521,"node_id":"MDU6SXNzdWUzMzQwMzI1MjE=","number":1319,"title":"Lazy loading read receipts","user":{"login":"ara4n","id":1294269,"node_id":"MDQ6VXNlcjEyOTQyNjk=","avatar_url":"https://avatars2.githubusercontent.com/u/1294269?v=4","gravatar_id":"","url":"https://api.github.com/users/ara4n","html_url":"https://github.com/ara4n","followers_url":"https://api.github.com/users/ara4n/followers","following_url":"https://api.github.com/users/ara4n/following{/other_user}","gists_url":"https://api.github.com/users/ara4n/gists{/gist_id}","starred_url":"https://api.github.com/users/ara4n/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ara4n/subscriptions","organizations_url":"https://api.github.com/users/ara4n/orgs","repos_url":"https://api.github.com/users/ara4n/repos","events_url":"https://api.github.com/users/ara4n/events{/privacy}","received_events_url":"https://api.github.com/users/ara4n/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-06-20T11:18:34Z","updated_at":"2018-06-20T11:18:34Z","closed_at":null,"author_association":"MEMBER","body":"Currently we send an `m.room.receipt` event for each and every member of a room in the initial sync - e.g. old Matrix HQ had 16,000 read receipt objects bulking out the initial sync.\r\n\r\nJust as we have the option of lazy loading members over at https://github.com/matrix-org/matrix-doc/issues/1227, we should have a separate option for lazy loading read receipts to save sync bandwidth.\r\n\r\nThe semantics would be to only send RRs for the events which are returned in the current piece of timeline."}}
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