DELETE FROM ttrss_prefs WHERE pref_name IN ('HIDE_FEEDLIST', 'SYNC_COUNTERS', 'ENABLE_LABELS', 'ENABLE_SEARCH_TOOLBAR', 'ENABLE_FEED_ICONS', 'ENABLE_OFFLINE_READING', 'EXTENDED_FEEDLIST', 'OPEN_LINKS_IN_NEW_WINDOW', 'ENABLE_FLASH_PLAYER', 'HEADLINES_SMART_DATE', 'MARK_UNREAD_ON_UPDATE', 'UPDATE_POST_ON_CHECKSUM_CHANGE');
+alter table ttrss_feeds add column pubsub_state integer;
+update ttrss_feeds set pubsub_state = 0;
+alter table ttrss_feeds alter column pubsub_state set not null;
+alter table ttrss_feeds alter column pubsub_state set default 0;
+
update ttrss_version set schema_version = 83;
commit;