6 uses of HISTORY_READ_LIMIT

comment_num_new in drupal/core/modules/comment/comment.module
Gets the number of new comments for the current user and the specified node.
HistoryUserTimestamp::query in drupal/core/modules/history/lib/Drupal/history/Plugin/views/filter/HistoryUserTimestamp.php
Add this filter to the query.
HistoryUserTimestamp::render in drupal/core/modules/history/lib/Drupal/history/Plugin/views/field/HistoryUserTimestamp.php
Render the field.
NodeNewComments::pre_render in drupal/core/modules/comment/lib/Drupal/comment/Plugin/views/field/NodeNewComments.php
Run before any fields are rendered.
node_mark in drupal/core/modules/node/node.module
Determines the type of marker to be displayed for a given node.
_forum_user_last_visit in drupal/core/modules/forum/forum.module
Gets the last time the user viewed a node.