Name Type Location Description
block_update_1000 function core/modules/block/block.install Block cache is always enabled in Backdrop.
hook_field_update function core/modules/field/field.api.php Define custom update behavior for this module's field data.
block_update_1001 function core/modules/block/block.install Add a column for title to the block_custom table.
update_fetch_data function core/modules/update/update.module Attempts to fetch update data after loading the necessary include file.
block_update_1002 function core/modules/block/block.install Remove the legacy block tables.
block_update_1003 function core/modules/block/block.install Increase {block_custom}.title length to 255 characters.
dblog_update_1000 function core/modules/dblog/dblog.install Account for possible legacy systems where dblog was not installed.
_update_cache_set function core/modules/update/update.module Stores data in the private update status cache table.
_update_cache_get function core/modules/update/update.module Retrieves data from the private update status cache table.
views_update_1006 function core/modules/views/views.install Remove headers field from cache tables.
views_update_1000 function core/modules/views/views.install Convert default views to configuration files.
views_update_1001 function core/modules/views/views.install Convert available database views to configuration files.
views_update_1002 function core/modules/views/views.install Drop Views tables that were converted to configuration files.
views_update_1003 function core/modules/views/views.install Update Views variables to use configuration files.
dblog_update_1001 function core/modules/dblog/dblog.install Set the format for dates in the database log.
image_update_1007 function core/modules/image/image.install Update from Image size to more specific Image dimensions.
date_field_update function core/modules/date/date.field.inc Implements hook_field_update().
image_update_1000 function core/modules/image/image.install Provide default image styles for the Image module.
image_update_1001 function core/modules/image/image.install Convert available database image styles to configuration files.
image_update_1002 function core/modules/image/image.install Drop image tables that were converted to configuration files.
image_update_1003 function core/modules/image/image.install Add labels to all available styles.
image_update_1004 function core/modules/image/image.install Update all image fields to use a static default image URI.
image_update_1005 function core/modules/image/image.install Rename image config files.
image_update_1006 function core/modules/image/image.install Add the configuration option for image_style_flood_limit.
image_update_1008 function core/modules/image/image.install Uninstall the imagecache_token contrib module, now part of core.
email_update_1000 function core/modules/email/email.install Remove the old email module configuration file.
color_update_1000 function core/modules/color/color.install Convert color module settings to config files.
field_update_1002 function core/modules/field/field.install Grant the new "administer fields" permission to trusted users.
dblog_update_1003 function core/modules/dblog/dblog.install Restore the format for dates in the database log.
update.report.inc file core/modules/update/update.report.inc Code required only when rendering the available updates report.
views_update_1005 function core/modules/views/views.install Set all grid style Views to use the deprecrated table if not set already.
theme_update_page function core/includes/theme.maintenance.inc Returns HTML for the update page.
hook_updater_info function core/modules/system/system.api.php Provide information on Updaters (classes that can update Backdrop).
views_update_1007 function core/modules/views/views.install Remove obsolete variable from config.
link_field_update function core/modules/link/link.module Implements hook_field_update().
update_is_missing function core/includes/update.inc Determines if a module update is missing or unavailable.
file_field_update function core/modules/file/file.field.inc Implements hook_field_update().
system_update_1015 function core/modules/system/system.install Convert RSS publishing settings to use configuration files.
system_update_1016 function core/modules/system/system.install Moves action_max_stack from variable to config.
system_update_1017 function core/modules/system/system.install Moves system logging settings from variables to config.
system_update_1018 function core/modules/system/system.install Moves authorize system settings from variable to config.
system_update_1019 function core/modules/system/system.install Converts active_menus_default variable to config.
system_update_1038 function core/modules/system/system.install Upgrade or prepare for token module in core.
system_update_1020 function core/modules/system/system.install Convert date settings to config.
system_update_1021 function core/modules/system/system.install Removes the js_cache_files variable.
system_update_1022 function core/modules/system/system.install Converts theme logo and shortcut settings to site-wide config.
system_update_1023 function core/modules/system/system.install Enable admin_bar, replacing the renamed admin_menu.
system_update_1024 function core/modules/system/system.install Consolidate common config files into "system.core".
system_update_1025 function core/modules/system/system.install Convert block positioning and configuration to the default layout.
system_update_1026 function core/modules/system/system.install Convert file system, clean URL, profile, and theme variables to config.

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