constant HISTORY_READ_LIMIT

Entities changed before this time are always shown as read.

Entities changed within this time may be marked as new, updated, or read, depending on their state for the current user. Defaults to 30 days ago.

File

drupal/core/modules/history/history.module, line 20

Records which users have read which content.

Code

define('HISTORY_READ_LIMIT', REQUEST_TIME - 30 * 24 * 60 * 60);