Title: Upgrades Global Functions Published: February 21, 2025 Last modified: March 10, 2025 --- # Upgrades Global Functions ## In this article * [acf_has_upgrade()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_has_upgrade) * [acf_upgrade_all()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_all) * [acf_get_db_version()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_get_db_version) * [acf_update_db_version()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_update_db_version) * [acf_upgrade_500()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_500) * [acf_upgrade_500_field_groups()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_500_field_groups) * [acf_upgrade_500_field_group()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_500_field_group) * [acf_upgrade_500_fields()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_500_fields) * [acf_upgrade_500_field()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_500_field) * [acf_upgrade_550()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_550) * [acf_upgrade_550_termmeta()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_550_termmeta) * [acf_wp_upgrade_550_termmeta()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_wp_upgrade_550_termmeta) * [acf_upgrade_550_taxonomy()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_550_taxonomy) [ Back to top](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#wp--skip-link--target) ## 󠀁[acf_has_upgrade()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_has_upgrade)󠁿 acf_has_upgrade * Returns true if this site has an upgrade available. * @date 24/8/18 * @since ACF 5.7.4 * @return boolean ## 󠀁[acf_upgrade_all()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_all)󠁿 Runs upgrade routines if this site has an upgrade available. * @date 24/8/18 * @since ACF 5.7.4 ## 󠀁[acf_get_db_version()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_get_db_version)󠁿 acf_get_db_version * Returns the ACF DB version. * @date 10/09/2016 * @since ACF 5.4.0 * @return string ## 󠀁[acf_update_db_version()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_update_db_version)󠁿 Updates the ACF DB version. * @date 10/09/2016 * @since ACF 5.4.0 * @param string $version The new version. * @return void ## 󠀁[acf_upgrade_500()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_500)󠁿 acf_upgrade_500 * Version 5 introduces new post types for field groups and fields. * @date 23/8/18 * @since ACF 5.7.4 * @return void ## 󠀁[acf_upgrade_500_field_groups()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_500_field_groups)󠁿 acf_upgrade_500_field_groups * Upgrades all ACF4 field groups to ACF5 * @date 23/8/18 * @since ACF 5.7.4 * @return void ## 󠀁[acf_upgrade_500_field_group()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_500_field_group)󠁿 acf_upgrade_500_field_group * Upgrades a ACF4 field group to ACF5 * @date 23/8/18 * @since ACF 5.7.4 * @param object $ofg The old field group post object. * @return array $nfg The new field group array. ## 󠀁[acf_upgrade_500_fields()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_500_fields)󠁿 acf_upgrade_500_fields * Upgrades all ACF4 fields to ACF5 from a specific field group * @date 23/8/18 * @since ACF 5.7.4 * @param object $ofg The old field group post object. * @param array $nfg The new field group array. * @return void ## 󠀁[acf_upgrade_500_field()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_500_field)󠁿 acf_upgrade_500_field * Upgrades a ACF4 field to ACF5 * @date 23/8/18 * @since ACF 5.7.4 * @param array $field The old field. * @return array $field The new field. ## 󠀁[acf_upgrade_550()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_550)󠁿 acf_upgrade_550 * Version 5.5 adds support for the wp_termmeta table added in WP 4.4. * @date 23/8/18 * @since ACF 5.7.4 * @return void ## 󠀁[acf_upgrade_550_termmeta()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_550_termmeta)󠁿 acf_upgrade_550_termmeta * Upgrades all ACF4 termmeta saved in wp_options to the wp_termmeta table. * @date 23/8/18 * @since ACF 5.7.4 * @return void ## 󠀁[acf_wp_upgrade_550_termmeta()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_wp_upgrade_550_termmeta)󠁿 When the database is updated to support term meta, migrate ACF term meta data across. * @date 23/8/18 * @since ACF 5.7.4 * @param string $wp_db_version The new $wp_db_version. * @param string $wp_current_db_version The old (current) $wp_db_version. * @return void ## 󠀁[acf_upgrade_550_taxonomy()](https://developer.wordpress.org/secure-custom-fields/code-reference/upgrades-file/?output_format=md#acf_upgrade_550_taxonomy)󠁿 acf_upgrade_550_taxonomy * Upgrades all ACF4 termmeta for a specific taxonomy. * @date 24/8/18 * @since ACF 5.7.4 * @param string $taxonomy The taxonomy name. * @return void --- First published February 21, 2025 Last updated March 10, 2025 Edit article [ Improve it on GitHub: Upgrades Global Functions ](https://github.com/wordpress/secure-custom-fields/edit/trunk/docs/code-reference/upgrades-file.md) Changelog [ See list of changes: Upgrades Global Functions ](https://github.com/wordpress/secure-custom-fields/commits/trunk/docs/code-reference/upgrades-file.md) [ Previous: Scf Ui Options Page Functions Global Functions](https://developer.wordpress.org/secure-custom-fields/code-reference/scf-ui-options-page-functions-file/) [ Next: Validation Global Functions](https://developer.wordpress.org/secure-custom-fields/code-reference/validation-file/)