issueNumber: MDL-82183
notes:
  core:
    - message: >
        The following classes are now also available in the following new
        locations. They will continue to work in their old locations:

        | Old classname | New classname |

        | --- | --- |

        | `\action_link` | `\core\output\action_link` |

        | `\action_menu_filler` | `\core\output\action_menu\filler` |

        | `\action_menu_link_primary` | `\core\output\action_menu\link_primary` |

        | `\action_menu_link_secondary` | `\core\output\action_menu\link_secondary` |

        | `\action_menu_link` | `\core\output\action_menu\link` |

        | `\action_menu` | `\core\output\action_menu` |

        | `\block_contents` | `\core_block\output\block_contents` |

        | `\block_move_target` | `\core_block\output\block_move_target` |

        | `\component_action` | `\core\output\actions\component_action` |

        | `\confirm_action` | `\core\output\actions\confirm_action` |

        | `\context_header` | `\core\output\context_header` |

        | `\core\output\local\action_menu\subpanel` | `\core\output\action_menu\subpanel` |

        | `\core_renderer_ajax` | `\core\output\core_renderer_ajax` |

        | `\core_renderer_cli` | `\core\output\core_renderer_cli` |

        | `\core_renderer_maintenance` | `\core\output\core_renderer_maintenance` |

        | `\core_renderer` | `\core\output\core_renderer` |

        | `\custom_menu_item` | `\core\output\custom_menu_item` |

        | `\custom_menu` | `\core\output\custom_menu` |

        | `\file_picker` | `\core\output\file_picker` |

        | `\flexible_table` | `\core_table\flexible_table` |

        | `\fragment_requirements_manager` | `\core\output\requirements\fragment_requirements_manager` |

        | `\help_icon` | `\core\output\help_icon` |

        | `\html_table_cell` | `\core_table\output\html_table_cell` |

        | `\html_table_row` | `\core_table\output\html_table_row` |

        | `\html_table` | `\core_table\output\html_table` |

        | `\html_writer` | `\core\output\html_writer` |

        | `\image_icon` | `\core\output\image_icon` |

        | `\initials_bar` | `\core\output\initials_bar` |

        | `\js_writer` | `\core\output\js_writer` |

        | `\page_requirements_manager` | `\core\output\requirements\page_requirements_manager` |

        | `\paging_bar` | `\core\output\paging_bar` |

        | `\pix_emoticon` | `\core\output\pix_emoticon` |

        | `\pix_icon_font` | `\core\output\pix_icon_font` |

        | `\pix_icon_fontawesome` | `\core\output\pix_icon_fontawesome` |

        | `\pix_icon` | `\core\output\pix_icon` |

        | `\plugin_renderer_base` | `\core\output\plugin_renderer_base` |

        | `\popup_action` | `\core\output\actions\popup_action` |

        | `\preferences_group` | `\core\output\preferences_group` |

        | `\preferences_groups` | `\core\output\preferences_groups` |

        | `\progress_bar` | `\core\output\progress_bar` |

        | `\renderable` | `\core\output\renderable` |

        | `\renderer_base` | `\core\output\renderer_base` |

        | `\renderer_factory_base` | `\core\output\renderer_factory\renderer_factory_base` |

        | `\renderer_factory` | `\core\output\renderer_factory\renderer_factory_interface` |

        | `\single_button` | `\core\output\single_button` |

        | `\single_select` | `\core\output\single_select` |

        | `\standard_renderer_factory` | `\core\output\renderer_factory\standard_renderer_factory` |

        | `\table_dataformat_export_format` | `\core_table\dataformat_export_format` |

        | `\table_default_export_format_parent` | `\core_table\base_export_format` |

        | `\table_sql` | `\core_table\sql_table` |

        | `\tabobject` | `\core\output\tabobject` |

        | `\tabtree` | `\core\output\tabtree` |

        | `\templatable` | `\core\output\templatable` |

        | `\theme_config` | `\core\output\theme_config` |

        | `\theme_overridden_renderer_factory` | `\core\output\renderer_factory\theme_overridden_renderer_factory` |

        | `\url_select` | `\core\output\url_select` |

        | `\user_picture` | `\core\output\user_picture` |

        | `\xhtml_container_stack` | `\core\output\xhtml_container_stack` |

        | `\YUI_config` | `\core\output\requirements\yui` |

      type: improved