hook_verify_update_archive($project, $archive_file, $directory) Verify an archive after it has been downloaded

public UpdateReady::__construct($root, ModuleHandlerInterface $module_handler

update_fetch_data() Attempts to fetch update data after loading the necessary include file.

update_get_available($refresh = FALSE) Tries to get update information and refreshes it when necessary.

update_storage_clear_submit($form, FormStateInterface $form_state) Form submission handler for system_modules()

Default theme implementation for the project status report. Available variables: last_checked:

public static UpdateReady::create(ContainerInterface $container)

Code required only when fetching information about available updates. File core/modules/update/update.fetch

public UpdateManagerInterface::fetchDataBatch(&

_update_manager_unique_identifier() Returns a short unique identifier for this Drupal installation.