history_node_delete(EntityInterface $node) Implements

history_help($route_name, RouteMatchInterface $route_match) Implements

history_read_multiple($nids) Retrieves the last viewed timestamp for each of the passed node IDs.

history_read($nid) Retrieves the timestamp for the current user's last view of a specified node.

Entities changed before this time are always shown as read. Entities changed within this time may be marked as new, updated, or read, depending

history_attach_timestamp($node_id) #lazy_builder callback; attaches the last read timestamp for a node.

history_cron() Implements

history_user_delete($account) Implements

history_node_view_alter(array &$build, EntityInterface $node, EntityViewDisplayInterface $display) Implements

Records which users have read which content. @todo Generic helper for _forum_user_last_visit() +