{"action":"created","issue":{"url":"https://api.github.com/repos/rails/rails/issues/15704","labels_url":"https://api.github.com/repos/rails/rails/issues/15704/labels{/name}","comments_url":"https://api.github.com/repos/rails/rails/issues/15704/comments","events_url":"https://api.github.com/repos/rails/rails/issues/15704/events","html_url":"https://github.com/rails/rails/pull/15704","id":35718730,"number":15704,"title":"Deprecate `serialized_attributes` without replacement","user":{"login":"sgrif","id":1529387,"avatar_url":"https://avatars.githubusercontent.com/u/1529387?v=3","gravatar_id":"","url":"https://api.github.com/users/sgrif","html_url":"https://github.com/sgrif","followers_url":"https://api.github.com/users/sgrif/followers","following_url":"https://api.github.com/users/sgrif/following{/other_user}","gists_url":"https://api.github.com/users/sgrif/gists{/gist_id}","starred_url":"https://api.github.com/users/sgrif/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sgrif/subscriptions","organizations_url":"https://api.github.com/users/sgrif/orgs","repos_url":"https://api.github.com/users/sgrif/repos","events_url":"https://api.github.com/users/sgrif/events{/privacy}","received_events_url":"https://api.github.com/users/sgrif/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":12,"created_at":"2014-06-14T01:39:06Z","updated_at":"2015-03-04T08:17:03Z","closed_at":"2014-06-14T14:34:58Z","pull_request":{"url":"https://api.github.com/repos/rails/rails/pulls/15704","html_url":"https://github.com/rails/rails/pull/15704","diff_url":"https://github.com/rails/rails/pull/15704.diff","patch_url":"https://github.com/rails/rails/pull/15704.patch"},"body":"We've stopped using it internally, in favor of polymorphism. So should\r\nyou!"},"comment":{"url":"https://api.github.com/repos/rails/rails/issues/comments/77114423","html_url":"https://github.com/rails/rails/pull/15704#issuecomment-77114423","issue_url":"https://api.github.com/repos/rails/rails/issues/15704","id":77114423,"user":{"login":"KelseyDH","id":6710303,"avatar_url":"https://avatars.githubusercontent.com/u/6710303?v=3","gravatar_id":"","url":"https://api.github.com/users/KelseyDH","html_url":"https://github.com/KelseyDH","followers_url":"https://api.github.com/users/KelseyDH/followers","following_url":"https://api.github.com/users/KelseyDH/following{/other_user}","gists_url":"https://api.github.com/users/KelseyDH/gists{/gist_id}","starred_url":"https://api.github.com/users/KelseyDH/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/KelseyDH/subscriptions","organizations_url":"https://api.github.com/users/KelseyDH/orgs","repos_url":"https://api.github.com/users/KelseyDH/repos","events_url":"https://api.github.com/users/KelseyDH/events{/privacy}","received_events_url":"https://api.github.com/users/KelseyDH/received_events","type":"User","site_admin":false},"created_at":"2015-03-04T08:17:03Z","updated_at":"2015-03-04T08:17:03Z","body":"Could somebody outline how existing applications using serialized_attributes can migrate to Rails 5?  I'm sure sound reasons exist to deprecate this feature, but breaking API changes without (what appears to be) a viable path for migration worries me heavily.\r\n\r\nMany Rails apps rely on popular gems that use serialized_attributes, such as paper_trail, rails_admin & identity_cache.  Making sure these popular gems can gracefully migrate away from serialized_attributes will go a long, long way in making this deprecation less painful."}}