Advanced Custom Fields

Release Date 8th April 2025

• Fix - Calling acf_get_reference() with an invalid field name no longer causes a fatal error

Release Date 7th April 2025

• New - In ACF PRO, fields can now be added to WooCommerce orders when using HPOS
• Enhancement - The "Escaped HTML" warning notice is now disabled by default
• Enhancement - ACF now uses Composer to autoload some classes
• Fix - Repeater pagination now works when the Repeater is inside a Group field
• Fix - Various translations are no longer called before the WordPress init action hook
• Security - Link field no longer has a minor local XSS vulnerability
• i18n - Various British English translation strings no longer have a quoting issue breaking links
• i18n - Added Dutch (formal) translations (props @toineenzo)

Release Date 21st January 2025

• Enhancement - Error messages that occur when field validation fails due an insufficient security nonce now have additional context
• Fix - Duplicated ACF blocks no longer lose their field values after the initial save when block preloading is enabled
• Fix - ACF Blocks containing complex field types now behave correctly when React StrictMode is enabled

Release Date 12th November 2024

• Enhancement - Field Group keys are now copyable on click
• Fix - Repeater tables with fields hidden by conditional logic now render correctly
• Fix - ACF Blocks now behave correctly in React StrictMode
• Fix - Edit mode is no longer available to ACF Blocks with an WordPress Block API version of 3 as field editing is not supported in the iframe

Release Date 29th October 2024 Free Only Release

• Fix - ACF Free no longer causes a fatal error when any unsupported legacy ACF addons are active

Release Date 29th October 2024 Free Only Release

• Fix - ACF Free no longer causes a fatal error when WPML is active

Release Date 29th October 2024

• Security - Setting a metabox callback for custom post types and taxonomies now requires being an admin, or super admin for multisite installs
• Security - Field specific ACF nonces are now prefixed, resolving an issue where third party nonces could be treated as valid for AJAX calls
• Enhancement - A new “Close and Add Field” option is now available when editing a field group, inserting a new field inline after the field being edited
• Enhancement - ACF and ACF PRO now share the same plugin updater for improved reliability and performance
• Fix - Exporting post types and taxonomies containing metabox callbacks now correctly exports the user defined callback

Release Date 15th October 2024

• Security - Editing an ACF Field in the Field Group editor can no longer execute a stored XSS vulnerability. Thanks to Duc Luong Tran (janlele91) from Viettel Cyber Security for the responsible disclosure
• Security - Post Type and Taxonomy metabox callbacks no longer have access to any superglobal values, hardening the original fix from 6.3.8 further
• Fix - ACF fields now correctly validate when used in the block editor and attached to the sidebar

Release Date 7th October 2024

• Security - ACF defined Post Type and Taxonomy metabox callbacks no longer have access to $_POST data. (Thanks to the Automattic Security Team for the disclosure)

Release Date 2nd October 2024

• Security - ACF Free now uses its own update mechanism from WP Engine servers

Release Date 28th August 2024

• Security - Newly added fields now have to be explicitly set to allow access in the content editor (when using the ACF shortcode or Block Bindings) to increase the security around field permissions. See the release notes for more details
• Security Fix - Field labels are now correctly escaped when rendered in the Field Group editor, to prevent a potential XSS issue. Thanks to Ryo Sotoyama of Mitsui Bussan Secure Directions, Inc. for the responsible disclosure
• Fix - Validation and Block AJAX requests nonces will no longer be overridden by third party plugins
• Fix - Detection of third party select2 libraries will now default to v4 rather than v3
• Fix - Block previews will now display an error if the render template PHP file is not found

Release Date 1st August 2024

• Fix - The ACF Shortcode now correctly outputs a comma separated list of values for arrays
• Fix - ACF Blocks rendered in auto mode now correctly re-render their previews after editing fields
• Fix - ACF Block validation no longer raises required validation messages if HTML will automatically select the first value when rendered
• Fix - ACF Block validation no longer raises required validation messages if a default value will be rendered as the field value
• Fix - ACF Block validation no longer raises required validation messages for fields hidden by conditional logic when adding a new block

Release Date 18th July 2024

• Security Fix - The ACF shortcode now prevents access to fields from different private posts by default. View the release notes for more information
• Fix - Users without the edit_posts capability but with custom capabilities for a editing a custom post type, can now correctly load field groups loaded via conditional location rules
• Fix - Block validation no longer validates a field’s sub fields on page load, only on edit. This resolves inconsistent validation errors on page load or when first adding a block
• Fix - Deactivating an ACF PRO license will now remove the license key even if the server call fails
• Fix - Field types returning objects no longer cause PHP warnings and errors when output via the_field, the_sub_field or the ACF shortcode, or when retrieved by a get_ function with the escape html parameter set
• Fix - Server side errors during block rendering now gracefully displays an error to the editor

Release Date 27th June 2024

• Enhancement - All dashicons are now available to the icon picker field type
• Fix - The True/False field now correctly shows it’s description message beside the switch when using the Stylized UI setting
• Fix - Conditional logic values now correctly load options when loaded over AJAX
• Fix - ACF PRO will no longer trigger license validation calls when loading a front-end page
• i18n - Fixed an untranslatable string on Option Page previews

Release Date 24th June 2024 PRO Only Release

• Fix - ACF Blocks no longer trigger a JavaScript error when fetched via AJAX

Release Date 24th June 2024

• Security Fix - ACF now generates different nonces for each AJAX-enabled field, preventing subscribers or front-end form users from querying other field results
• Security Fix - ACF now correctly verifies permissions for certain editor only actions, preventing subscribers performing those actions
• Security Fix - Deprecated a legacy private internal field type (output) to prevent it being able to output unsafe HTML
• Security Fix - Improved handling of some SQL filters and other internal functions to ensure output is always correctly escaped
• Security Fix - ACF now includes blank index.php files in all folders to prevent directory listing of ACF plugin folders for incorrectly configured web servers

Release Date 6th June 2024 PRO Only Release

• Fix - ACF Blocks in widget areas no longer cause a fatal error when no context is available
• Fix - ACF Blocks with no fields assigned no longer show a gap in the sidebar where the form would render

Release Date 6th June 2024 PRO Only Release

• Fix - Repeater and Flexible Content fields no longer error when duplicating or removing rows containing Icon Picker subfields
• Fix - ACF Blocks containing Flexible Content fields now correctly load their edit form
• Fix - ACF Blocks no longer have a race condition where the data store is not initialized when read
• Fix - ACF Blocks no longer trigger a JS error for blocks without fields and with an empty no-fields message
• Fix - ACF Block preloading now works correctly for fields consuming custom block context
• Fix - ACF Block JavaScript debug messages now correctly appear when SCRIPT_DEBUG is true

Release Date 4th June 2024

• Enhancement - Options Pages registered in the UI can now be duplicated
• Fix - ACF Block validation now correctly validates Repeater, Group, and Flexible Content fields
• Fix - ACF Block validation now correctly validates when a field is using a non-default return type
• Fix - Fields moved between field groups now correctly updates both JSON files
• Fix - Icon Picker fields now render correctly when using left-aligned labels
• Fix - Icon Picker fields no longer renders tabs if only one tab is selected for display
• Fix - Icon Picker fields no longer crash the post editor if no icon picker tabs are selected for displayed
• Fix - True/False field now better handles longer On/Off labels
• Fix - Select2 results loaded by AJAX for multi-select Taxonomy fields no longer double encode HTML entities

Release Date 22nd May 2024

• Fix - A possible fatal error no longer occurs in the new site health functionality for ACF PRO users
• Fix - A possible undefined index error no longer occurs in ACF Blocks for ACF PRO users

Release Date 22nd May 2024

• New - ACF now requires WordPress version 6.0 or newer, and PHP 7.4 or newer.
• New - ACF Blocks now support validation rules for fields. View the release notes for more information
• New - ACF Blocks now supports storing field data in the postmeta table rather than in the post content
• New - Conditional logic rules for fields now support selecting specific values for post objects, page links, taxonomies, relationships and users rather than having to enter the ID
• New - New Icon Picker field type for ACF and ACF PRO
• New - Icon selection for a custom post type menu icon
• New - Icon selection for an options page menu icon
• New - ACF now surfaces debug and status information in the WordPress Site Health area
• New - The escaped html notice can now be permanently dismissed
• Enhancement - Tab field now supports a selected attribute to specify which should be selected by default, and support class attributes
• Fix - Block Preloading now works reliably in WordPress 6.5 or newer
• Fix - Select2 results loaded by AJAX for post object fields no longer double encode HTML entities
• Fix - Custom post types registered with ACF will now have custom field support enabled by default to better support revisions
• Fix - The first preview after publishing a post in the classic editor now displays ACF fields correctly
• Fix - ACF fields and Flexible Content layouts are now correctly positioned while dragging
• Fix - Copying the title of a field inside a Flexible Content layout no longer adds whitespace to the copied value
• Fix - Flexible Content layout names are no longer converted to lowercase when edited
• Fix - ACF Blocks with attributes without a default now correctly register
• Fix - User fields no longer trigger a 404 when loading results if the nonce generated only contains numbers
• Fix - Description fields for ACF items now support being solely numeric characters
• Fix - The field group header no longer appears above the WordPress admin menu on small screens
• Fix - The acf/json/save_file_name filter now correctly applies when deleting JSON files
• i18n - All errors raised during ACF PRO license or update checks are now translatable
• Other - The ACF Shortcode is now disabled by default for new installations of ACF as discussed in the ACF 6.2.7 release notes

Release Date 15th May 2024

• Security Fix - ACF Blocks no longer allow render templates, or render or asset callbacks to be overridden in the block's attributes. For full information, please read the release blog post

Release Date 8th April 2024

• Enhancement - The Select2 escapeMarkup function can now be overridden when initializing a custom Select2
• Fix - “Hide on Screen” settings are now correctly applied when using conditionally loaded field groups
• Fix - Field names are no longer converted to lowercase when editing the name
• Fix - Field group titles will no longer convert HTML entities into their encoded form

Release Date 2nd April 2024

• New - Support for the Block Bindings API in WordPress 6.5 with a new acf/field source. For more information on how to use this, please read the release blog post
• New - Support for performance improvements for translations in WordPress 6.5
• Enhancement - A new JS filter, select2_escape_markup now allows fields to customize select2's HTML escaping behavior
• Fix - Options pages can no longer set to have a parent of themselves
• Fix - ACF PRO license activations on multisite subsite installs will now use the correct site URL
• Fix - ACF PRO installed on multisite installs will no longer try to check for updates resulting in 404 errors when the updates page is not visible
• Fix - ACF JSON no longer produces warnings on Windows servers when no ACF JSON folder is found
• Fix - Field and layout names can now contain valid non-ASCII characters
• Other - ACF PRO now requires a valid license to be activated in order to use PRO features. Learn more

Release Date 27th February 2024

• Security Fix - the_field now escapes potentially unsafe HTML as notified since ACF 6.2.5. For full information, please read the release blog post
• Security Fix - Field and Layout names are now enforced to alphanumeric characters, resolving a potential XSS issue
• Security Fix - The default render template for select2 fields no longer allows HTML to be rendered resolving a potential XSS issue
• Security Enhancement - A acf/shortcode/prevent_access filter is now available to limit what data the ACF shortcode is allowed to access
• Security Enhancement - i18n translated strings are now escaped on output
• Enhancement - ACF now universally uses WordPress file system functions rather than native PHP functions

Release Date 7th February 2024

• Fix - Fatal JS error no longer occurs when editing fields in the classic editor when Yoast or other plugins which load block editor components are installed
• Fix - Using $escape_html on get functions for array returning field types no longer produces an Array to string conversion error

Release Date 6th February 2024

• Enhancement - The get_field() and other get_ functions now support an escape_html parameter which return an HTML safe field value
• Enhancement - The URL field will be now escaped with esc_url rather than wp_kses_post when returning an HTML safe value
• Fix - ACF fields will now correctly save into the WordPress created revision resolving issues with previews of drafts on WordPress 6.4 or newer
• Fix - Multisite subsites will now correctly be activated by the main site where the ACF PRO license allows, hiding the updates page on those subsites
• Fix - Field types in which the required property would have no effect (such as the tab, or accordion) will no longer show the option
• Fix - Duplicating a field group now maintains the current page of field groups being displayed
• Fix - Fields in ACF Blocks in edit mode in hybrid themes will now use ACF's styling, rather than some attributes being overridden by the theme
• Fix - Text in some admin notices will no longer overlap the dismiss button
• Fix - The word link is now prohibited from being used as a CPT name to avoid a WordPress core conflict
• Fix - Flexible content layouts can no longer be duplicated over their maximum count limit
• Fix - All ACF notifications shown outside of ACF's admin screens are now prefixed with the plugin name
• Fix - ACF no longer checks if a polyfill is needed for <PHP7 and the polyfill has been removed

Release Date 16th January 2024

• Security Fix - The ACF shortcode will now run all output through wp_kses, escaping unsafe HTML. This may be a breaking change to your site but is required for security, a message will be shown in WordPress admin if you are affected. Please see the blog post for this release for more information. Thanks to Francesco Carlucci via Wordfence for the responsible disclosure
• Security - ACF now warns via an admin message, when upcoming changes to the_field and the_sub_field may require theme changes to your site to avoid stripping unsafe HTML. Please see the blog post for this release for more information
• Security - Users may opt in to automatically escaping unsafe HTML via a new filter acf/the_field/escape_html_optin when using the_field and the_sub_field before this becomes default in an upcoming ACF release.

Release Date 28th November 2023

• Fix - Custom Post Types labels now match the WordPress 6.4 behavior for "Add New" labels
• Fix - When exporting both post types and taxonomies as PHP, taxonomies will now appear before post types, matching the order ACF registers them. This resolves issues where taxonomy slugs will not work in post type permalinks
• Fix - Advanced Settings for Taxonomies, Post Types or Options Pages now display with the correct top padding when toggled on
• Fix - When a parent option page is set to "Redirect to Child Page", the child page will now correctly show it's parent setting
• Fix - When activated as a must-use plugin, the ACF PRO "Updates" page is now visible. Use the existing show_updates setting to hide
• Fix - When activated as a must-use plugin, ACF PRO licenses defined in code will now correctly activate sites
• Fix - When show_updates is set or filtered to false, ACF PRO will now automatically still activate defined licenses
• i18n - Maintenance and internal upstream messages from the ACF PRO activation server are now translatable

Release Date 15th November 2023

• View Release Post
• New - An ACF Blocks specific JSON schema for block.json is now available on GitHub
• New - Flexible Content fields now show the layout name in the layout's header bar and supports click-to-copy
• New - Duplicating Flexible Content layouts now appends "Copy" to their name and label, matching the behavior of field group duplication
• Enhancement - ACF PRO will now automatically attempt license reactivation when the site URL changes, e.g. after a site migration. This resolves issues where updates may fail
• Enhancement - Presentation setting for "High" placement of the Field Group made clear that it's not supported in the block editor
• Fix - acf_format_date now ensures the date parameter is valid to prevent fatal errors if other data types are passed in
• Fix - CPTs with a custom icon URL now display the posts icon in the location column of the field groups screen
• Fix - The ACF JSON import form will now disable on first submit resolving an issue where you could submit the form twice
• Fix - The "Add Row" button in the Flexible Content field now displays correctly when using nested layouts
• Fix - Warning and Error notices no longer flicker on ACF admin pages load
• i18n - ACF PRO license activation success and error messages are now translatable

Release Date 25th October 2023

• Enhancement - ACF Blocks which have not been initialized by the editor will now render correctly
• Enhancement - Added a new acf/filesize filter to allow third party media plugins to bypass ACF calling filesize() on attachments with uncached file sizes, which may result in a remote download if offloaded
• Enhancement - ACF PRO license status and subscription expiry dates are now displayed on the “Updates” page
• Fix - Product pages for WooCommerce version 8.2 or newer now correctly support field group location rules
• Fix - Relationship field items can now be removed on mobile devices
• Fix - Color picker fields no longer autocomplete immediately after typing 3 valid hex characters
• Fix - Field settings no longer appear misaligned when the viewport is something other than 100%
• Fix - Select fields without an aria-label no longer throw a warning
• Fix - CPTs and Taxonomies with a custom text domain now export correctly when using PHP export

Release Date 8th September 2023

• Fix - Editing a field group no longer generates an error when UI options pages are disabled

Release Date 7th September 2023

• New - Options Pages created in the admin UI can now be assigned as child pages for any top-level menu item
• New - Added a "Title Placeholder" setting to ACF Post Types which filters the "Add title" text when editing posts
• Enhancement - ACF PRO will now warn when it can't update due to PHP version incompatibilities
• Enhancement - ACF PRO will now work correctly with WordPress automatic updates
• Enhancement - The internal ACF Blocks template attribute parser function parseNodeAttr can now be shortcut with the new acf_blocks_parse_node_attr filter.
• Enhancement - Removed legacy code for supporting WordPress versions under 5.8
• Fix - The "Menu Position" setting is no longer hidden for child options pages
• Fix - The tabs for the "Advanced" settings in Post Types and Taxonomies are now rendered inside a wrapper div
• Fix - Options pages will no longer display as a child page in the list view when set to a top level page after previously being a child
• Fix - Conflict with Elementor CSS breaking the ACF PRO banner
• Fix - Errors generated during the block editor's savePost function will no longer be caught and ignored by ACF

Release Date 9th August 2023

• View Release Post
• New - ACF now requires WordPress version 5.8 or newer, and PHP 7.0 or newer. View the release post for more information
• New - Bidirectional Relationships now supported for Relationship, Post Object, User and Taxonomy fields. View the release post for more information
• New - Options Pages can now be registered and managed by the admin UI in ACF PRO
• New - Link to the product feedback board added to the plugin footer
• Enhancement - ACF JSON now supports multiple save locations (props Freddy Leitner)
• Enhancement - ACF Post Types and Taxonomies can now be duplicated
• Enhancement - The filename for JSON files can now be customized with the acf/json/save_file_name filter
• Fix - REST updates of fields with choices containing integer or mixed keys now behave correctly
• Fix - Using the block_type_metadata_settings PHP filter to add usesContext values no longer breaks ACF blocks
• Fix - Notice to import post types/taxonomies from CPTUI no longer flashes on page load
• Fix - Various buttons for fields in blocks now display correctly
• Fix - The settings for the DateTime field are no longer cut off when nested in several fields in the field group editor
• Fix - The newline added to the end of JSON files will now use PHP_EOL to detect the correct newline character with a filter acf/json/eof_newline to alter it.
• i18n - Updated French and Portuguese translations (Thanks to pedro-mendonca and maximebj)

View the full changelog

Release Date 6th April 2022

• Fix - Cloned fields in custom named options pages now behave correctly
• Fix - Default values and the acf/load_value filter are now applied if a field value load fails security validation
• Fix - The ACF field is no longer present in REST responses if the ACF REST API setting is disabled
• Fix - Duplicating a flexible content layout or repeater row now also replaces the field ID in for attributes

Release Date 23rd March 2022

• New - REST API now supports the comment route for displaying ACF fields.
• Fix - ACF now validates access to option page field values when accessing via field keys the same way as field names. View More
• Fix - REST API now correctly validates fields for POST update requests
• Fix - Fixed an issue where invalid field types caused an error during REST API requests
• Fix - Fixed a PHP warning when duplicating an empty field group
• Fix - Fixed a bug preventing block duplication detection changing an ACF Block’s ID if it was nested deeper than one level inside another block
• Fix - Fixed a bug where the acf-block-preview wrapper might not appear around a block if it was saved in edit mode
• i18n - Updated several translations from user contributions (Thanks to Dariusz Zielonka, Mikko Kekki and Alberto!)

Release Date 23rd February 2022

• View Release Post
• New - ACF blocks now support the new Full Site Editor included in WordPress 5.9
• New - ACF blocks now support the WordPress Query Loop block
• New - Added block caching system to reduce the number of AJAX calls in the block editor
• Enhancement - Block preloading can now be disabled by using "acf_update_setting( 'preload_blocks', false );" in the "acf/init" action hook
• Enhancement - ACF and ACF PRO will now detect if each other are active and deactivate the other plugin on plugin activation
• Fix - Fixed an issue with the media library not working correctly in ACF Blocks in WordPress 5.9.1
• Fix - Fixed an issue where anchors weren't working correctly in WordPress 5.9
• Fix - Fixed an issue where the "unfiltered_html" capability wasn't being used by ACF blocks
• Fix - Fixed an issue where it was impossible to update an ACF block inside the widget block editor
• Fix - Fixed an issue where ACF fields might not appear in REST API calls made via internal WordPress functions
• Fix - Warnings and PHP 8.1 deprecation notices in REST API
• Fix - Better support for double byte characters in "acf_get_truncated()" (props @cabradb)
• i18n - Broken link in the Croatian translation
• i18n - Automated building of acf.pot for translators in each release

Release Date - 2nd December 2021

• Fix - Fixed several Select2.js conflicts with other plugins
• Fix - Fixed an issue where block name sanitization could change valid block names containing double hyphens
• Fix - Fixed an issue where blocks with integer IDs could fail to load example field data

Release Date - 24th November 2021

• Fix - Fixed a bug when accessing field values for options pages registered with a custom post_id

Release Date - 24th November 2021

• Fix - Previously implemented data access changes for get_field() and the_field() are now limited to the ACF shortcode only. Learn more
• Fix - get_field() and the_field() functions can once again access meta values regardless of being registered with ACF, restoring functionality that existed before 5.11
• Fix - get_field() and the_field() functions now are only able to access site options which are ACF fields
• Fix - UI issues for select boxes related to Yoast and WooCommerce’s select2 versions by upgrading our select2 version, and updating our CSS to support older versions
• Fix - User fields failed to load values when using the legacy select2 v3 option
• Fix - acf_slugify() now correctly supports special characters which solves issues with block names or field group names (during imports) containing those characters
• Fix - PHP Notice generated while processing a field group’s postbox classes

Release Date - 18 November 2021

• Enhancement - Added "acf/admin/license_key_constant_message" filter to allow changing of the "Your license key is defined in wp-config.php" message
• Fix - Added warning for when get_field() or similar functions are called before ACF has initialized. Learn more
• Fix - Fixed fields not appearing on user REST API endpoints if their field group location was set to a user form other than "all"
• Fix - Fixed warning in REST API if a custom field type did not have the "show_in_rest" property
• Fix - Fixed an error that could occur if value of WYSIWYG field was not a string

Release Date - 10 November 2021

• View Release Post
• New - Fields can now be viewed and updated with the WordPress REST API (props @mishterk)
• New - License key can now be defined in code with the "ACF_PRO_LICENSE" constant
• Enhancement - Improved error handling for expired or deactivated licenses
• Enhancement - Improved support for various block editor features, such as block styles and padding/spacing
• Enhancement - Added support for using WordPress "Screen Options" to hide field groups in Classic Editor
• Enhancement - Support filters adding custom classes on date and time field inputs
• Enhancement - Support filtering ACF shortcode attributes (with the "shortcode_atts_acf" filter)
• Fix - Removed usages of PHP "extract()" function
• Fix - Fixed a security issue with user field
• Fix - Fixed a security issue with "acf_get_value()"
• Fix - Correctly set ".acf-block-preview" wrapper when previewing a block in auto mode
• Fix - Resolved an issue with select2 rendering for nav menu fields
• Fix - Fixed an issue with file validation that occurred when removing a file that failed validation
• Fix - Fixed a notice in "acf_prepare_field()"
• Fix - Prevented an issue where setting an empty string for the return format of date and time fields would cause JS errors
• Fix - Fix issues with conditional logic for multi-select fields (props @bhujagendra-ishaya)
• Fix - Added support for Google Maps schema change which prevented Google Maps fields from correctly saving the city for some areas
• Fix - Fixed an issue where removing the collapsed property of a repeater prevents viewing previously collapsed rows
• i18n - Updated Polish Translations (props @webnatural)
• Dev - Formatted JavaScript to WordPress code standards

Release Date - 31 August 2021

• Fix - Fixed block duplication issues which created blocks with duplicate block IDs
• Fix - Fixed an issue with ACF errors displaying in the media library outside of ACF fields
• Fix - Changed label of "Enable Opacity?" to "Allow transparency" in the colour picker
• Fix - Revert "style" attributes of ACF Blocks to 5.9.x behaviour for template compatibility
• Fix - Allow safe HTML inside select2 field labels
• Fix - Don't render the "acf-block-preview" div when preloading blocks in edit mode

Release Date - 26 August 2021

• Fix - Fixed conflict with WooCommerce loading SelectWoo which is not directly compatible with Select2.

Release Date - 25 August 2021

• View Release Post
• Enhancement - Improved security by running all user-generated content through wp_kses() by default
• Enhancement - New ACF Blocks features
  • Switched to v2 of the Blocks API for WordPress 5.6+
  • Block preloading now enabled by default
  • Block preloading now supports blocks set to "Edit" mode
  • Add support for full height alignment setting
• Enhancement - Added setting to color picker field to enable an opacity slider
• Enhancement - Allow deletion of first field group location rule if multiple rules have been added thanks to Arthur Shlain
• Fix - Fixed vulnerability with acf_shortcode() where users with subscriber role could view arbitrary ACF data, thanks to Keitaro Yamazaki
• Fix - Fixed vulnerability where users with subscriber role could move fields and view field groups, thanks to Keitaro Yamazaki
• Fix - Fixed issue where fields in legacy widgets weren't saving in new widget block editor
• Fix - Fixed issue with custom field validation in scheduled posts
• Fix - Fixed warnings thrown by clone field if the cloned field group is empty
• Fix - Fixed issue where Select2 search input wouldn't have focus in WordPress 5.8+
• Fix - Fixed issue with Select2 value sorting when Yoast SEO is installed
• Fix - Fixed deprecation warnings in block editor in WordPress 5.6+
• i18n - Updated Swedish translation thanks to Erik Betshammar

Release Date - 20 July 2021

• Fix - Fixed warning when deleting fields which don't exist
• Fix - Fixed issues with older browsers and the blocks JavaScript
• Fix - Fixed file size & file type validation for front end forms using the basic uploader

Release Date - 08 July 2021

• Fix - Fixed bug causing multiple image fields to not validate files properly
• Fix - Fixed bug preventing case-sensitive HTML tags from working in blocks
• Fix - Fixed bug causing JSX-enabled blocks to improperly remove whitespace in preview
• Fix - Fixed bug causing text fields to remove HTML entities when editing saved fields
• Fix - Fixed deprecated jQuery notices on "Add Field Group" page

Release Date - 22 June 2021

• Fix - Fixed PHP warnings logged due to incorrect parameter type for add_menu_page()/add_submenu_page()
• Fix - Fixed bug causing WYSIWYG field to not keep line breaks
• Fix - Fixed bug causing Email field to incorrectly invalidate emails with unicode characters
• Fix - Fixed bug causing file type validation to fail in some cases
• Fix - Fixed bug where newly uploaded or selected images do not contain custom preview size data

Release Date - 20 May 2021

• Enhancement - Added 'position' setting compatibility for Options Page submenus.
• Enhancement - Visually highlight "High" metabox area when dragging metaboxes.
• Fix - Fixed compatibility issue between Block matrix alignment setting and the latest version of Gutenberg (10.6).
• Fix - Fixed bug breaking WYSIWYG field after reordering a child block via the block's toolbar up/down buttons.
• Fix - Added missing "readonly" and "disabled" attributes to DateTime and Time picker fields.
• Fix - Fixed bug incorrectly validating Email field values containing special characters.
• Fix - Fixed missing "dashicons" asset dependency from front-end forms.
• Fix - Fixed bug causing Review JSON diff modal to appear with narrow column since WP 5.7.
• Dev - Added label elements to Repeater, Flexible Content and Clone field's table header titles.
• Dev - Added new ACF_EXPERIMENTAL_ESC_HTML constant. Read more

Release Date - 11 February 2021

• Fix - Fixed regression preventing blocks from loading correctly within the editor in WordPress 5.5.
• Fix - Fixed bug causing incorrect post_status properties when restoring a Field Group from trash in WordPress 5.6.
• Fix - Fixed edge case bug where a taxonomy named "options" could interfere with saving and loading option values.
• Fix - Fixed additional PHP 8.0 warnings.
• i18n - Updated Finnish translation thanks to Mikko Kekki

Release Date - 14 January 2021

• Enhancement - Added PHP validation for the Email field (previously relied solely on browser validation).
• Fix - Added support for PHP 8.0 (fixed logged warnings).
• Fix - Added support for jQuery 3.5 (fixed logged warnings).
• Fix - Fixed bug causing WYSIWYG field to appear unresponsive within the Gutenberg editor.
• Fix - Fixed regression preventing "blog_%d" and "site_%d" as valid $post_id values for custom Taxonomy terms.
• Fix - Fixed bug causing Radio field label to select first choice.
• Fix - Fixed bug preventing preloading blocks that contain multiple parent DOM elements.
• i18n - Updated Japanese translation thanks to Ryo Takahashi.
• i18n - Updated Portuguese translation thanks to Pedro Mendonça.

Release Date - 3 November 2020

• Fix - Fixed bug causing Revision meta to incorrectly update the parent Post meta.
• Fix - Fixed bug breaking "Filter by Post Type" and "Filter by Taxonomy" Field settings.

Release Date - 29 October 2020

• Enhancement - Added experiment for preloading block HTML and reducing AJAX requests on page load.
• Fix - Added boolean attribute value detection to JSX parser (fixes issue with templateLock="false").
• Fix - Added "dateTime" attribute to JSX parser ruleset.
• Fix - Fixed unresponsive Select2 instances after duplicating a row or layout.
• Fix - Added missing Color Picker script translations for previous WordPress versions.
• Fix - Fixed bug in Clone Field causing potential PHP error if cloning a Field Group that no longer exists.
• Fix - Fixed PHP warning logged when comparing a revision that contains values for a Field that no longer exist.
• Dev - Added $wp_block parameter to block render_callback and render_template (unavailable during AJAX preview requests).
• Dev - Deprecated acf_get_term_post_id() function.

Release Date - 8 September 2020

• Fix - Fixed guten-bug causing "Preview Post" button to publish changes.
• Fix - Fixed guten-bug causing JS errors when editing with Elementor or Beaver Builder.
• Fix - Fixed bug in Color Picker field causing JS error on front-end forms.
• Fix - Fixed bug in Post Taxonomy location rule causing incomplete list of rule choices.
• Fix - Reverted Local JSON "save to source path" enhancement due to DX feedback.
• i18n - Updated Indonesian translations thanks to Rio Bahtiar.
• i18n - Updated Turkish translation thanks to Emre Erkan.

Release Date - 17 August 2020

• Enhancement - New Field Groups admin.
  • Added toolbar across all ACF admin pages.
  • Added new table columns: Description, Key, Location, Local JSON.
  • Added popup modal to review Local JSON changes before sync.
  • Added visual representation of where Field Groups will appear.
  • Added new help tab.
  • Simplified layout.
• Enhancement - New ACF Blocks features.
  • Added support for Inner Blocks.
  • Added new "jsx" setting.
  • Added new "align_text" settings.
  • Added new "align_content" settings.
• Enhancement - Added duplicate functionality for Repeater and Flexible Content fields.
• Enhancement - Added PHP validation support for Gutenberg.
• Enhancement - Added ability to bypass confirmation tooltips (just hold shift).
• Enhancement - Local JSON files now save back to their loaded source path (not "save_json" setting).
• Tweak - Replaced all custom icons with dashicons.
• Tweak - Changed custom post status label from "Inactive" to "Disabled".
• Tweak - Improved styling of metaboxes positioned in the block editor sidebar.
• Fix - Improved AJAX request efficiency when editing block className or anchor attributes.
• Fix - Fixed bug causing unresponsive WYSIWYG fields after moving a block via the up/down arrows.
• Fix - Fixed bug causing HTML to jump between multiple instances of the same Reusable Block.
• Fix - Fixed bug sometimes displaying validation errors when saving a draft.
• Fix - Fixed bug breaking Image field UI when displaying a scaled portrait attachment.
• Fix - Fixed bug in Link field incorrectly treating the "Cancel" button as "Submit".
• Fix - Fixed bug where a sub field within a collapsed Repeater row did not grow to the full available width.
• Fix - Ensured all archive URLs shown in the Page Link field dropdown are unique.
• Fix - Fixed bug causing incorrect conditional logic settings on nested fields when duplicating a Field Group.
• Fix - Fixed bug causing license activation issues with some password management browser extensions.
• Dev - Major improvements to ACF_Location class.
• Dev - Refactored all location classes to optimize performance.
• Dev - Extracted core JavaScript from "acf-input.js" into a separate "acf.js" file.
• Dev - Field Group export now shows "active" attribute as bool instead of int.
• Dev - Added filter "acf/get_object_type" to customize WP object information such as "label" and "icon".
• Dev - Added action "acf/admin_print_uploader_scripts" fired when printing uploader (WP media) scripts in the footer.
• Dev - Added filters "acf/pre_load_attachment" and "acf/load_attachment" to customize attachment details.
• Dev - Added filter "acf/admin/toolbar" to customize the admin toolbar items.
• Dev - Added new JS actions "duplicate_fields" and "duplicate_field" fired when duplicating a row.
• i18n - Changed Croatian locale code from "hr_HR to "hr".
• i18n - Updated Portuguese translation thanks to Pedro Mendonça.
• i18n - Updated French Canadian translation thanks to Bérenger Zyla.
• i18n - Updated French translation thanks to Maxime Bernard-Jacquet.
• i18n - Updated German translations thanks to Ralf Koller.

Release Date - 13 August 2020

• Fix - Fixed bug breaking ACF Block $is_preview parameter in WordPress 5.5.
• Fix - Fixed bug breaking seamless postbox style in WordPress 5.5.

Release Date - 10 August 2020

• Tweak - Added styling compatibility for WordPress 5.5.
• Fix - Implemented new wp_filter_content_tags() function in "acf_the_content" filter.
• i18n - Updated Arabic translation thanks to Karim Ramadan.

Release Date - 10 June 2020

• Fix - Improved string escaping in Select2 drop-downs to address XSS concerns.
• Fix - Fixed bug causing PHP error when updating the settings of a Checkbox field.
• Fix - Fixed bug causing WYSIWYG field to hide when toggling between Document and Block tabs within the Block editor.
• Fix - Fixed bug incorrectly validating the length of Text and Textarea field values that contained HTML entities.

Release Date - 12 May 2020

• Fix - Fixed bug in ACF Blocks where "inserter examples" and "block templates" did not load the defined "data".
• Fix - Reverted "fix" in 5.8.9 regarding Taxonomy fields saving terms to non "post" objects.
• Fix - Fixed bug allowing the Image field to save the value of a deleted attachment.
• Fix - Improved Select field format_value() behaviour to correctly cast value types depending on the "multiple" setting.
• Tweak - Changed language fallback for "zh_HK" to "zh_TW".
• Tweak - Changed Time Picker field settings to display in a localized format via date_i18n().
• Tweak - Improved CSS styling of menu item fields.
• i18n - Updated Finnish translation thanks to Mikko Kekki
• i18n - Updated French translation thanks to Maxime Bernard-Jacquet.
• i18n - Updated Turkish translation thanks to Emre Erkan.

Release Date - 12 May 2020

• See hotfix version 5.8.11 for release notes.

Release Date - 26 March 2020

• Fix - Fixed bug in ACF Blocks causing default "align" property to be ignored.
• Fix - Fixed bug allowing Taxonomy field to save terms to a non "post" object.
• Tweak - Improved User field AJAX query performance.
• Tweak - Improved logic that determines width of Range field input.
• Tweak - Improved styling of ACF Blocks components.
• Dev - Added new "acf/register_block_type_args" filter.
• Dev - Added new generic ACF_Ajax_Query and ACF_Ajax_Query_Users classes.
• i18n - Updated French Canadian translation thanks to Bérenger Zyla.
• i18n - Updated Traditional Chinese translation thanks to Audi Lu.
• i18n - Updated German translation thanks to Ralf Koller.
• i18n - Updated Portuguese translation thanks to Pedro Mendonça.

Release Date - 4 March 2020

• Fix - Fixed bug in have_rows() function causing a PHP warning when no value is found.
• Fix - Fixed bug in Google Maps field causing marker to snap to nearest address.
• Fix - Avoid Nav Menu items displaying twice in WordPress 5.4.
• Tweak - Added place name data to Google Maps field value.
• Tweak - Improved performance of PHP registered fields.
• Dev - Added new "acf/prepare_field_group_for_import" filter.
• i18n - Added Traditional Chinese translation thanks to Audi Lu.
• i18n - Added Catalan translation thanks to Jordi Tarrida.
• i18n - Updated French translation thanks to Maxime Bernard-Jacquet & Bérenger Zyla.

Release Date - 12 November 2019

• New - Updated admin CSS for new WordPress 5.3 styling.
• Fix - Fixed various issues affecting dynamic metaboxes in the block editor (requires WordPress 5.3)
• Fix - Fixed performance issue when checking network sites for upgrades.
• Fix - Fixed Select2 clones appearing after duplicating a Relationship field.
• Tweak - Repeater field "Add row" icons will now hide when maximum rows are reached.
• Tweak - Removed ACF Blocks keyword limit for later versions of Gutenberg.

Release Date - 24 October 2019

• New - Added more data to Google Maps field value including place_id, street_name, country and more.
• Fix - Fixed bug in Gallery field incorrectly displaying .pdf attachments as icons.
• Fix - Fixed bug in Checkbox field missing "selected" class after "Toggle All".
• Dev - Added compatibility for Attachments in the Post Taxonomy location rule.
• Dev - Added missing return statement from acf_get_form() function.
• Dev - Added "google_map_result" JS filter.

Release Date - 8 October 2019

• New - Added new choice "Add" to the User Form location rule.
• New - Optimized acf_form() logic when used in combination with acf_register_form().
• Fix - Fixed bug causing incorrect field order after sync.
• Fix - Fixed bug reverting the first field type to Text in Firefox version 69.0.1.
• Fix - Fixed bug causing tinymce issues when changing between block modes.
• Fix - Fixed bug preventing block registration when category does not exist.
• Fix - Fixed bug preventing block registration when no icon is declared.
• Dev - Added RegExp compatibility for innerBlocks.

Release Date - 3 September 2019

• New - Optimized Relationship field by delaying AJAX call until UI is visible.
• Fix - Fixed bug incorrectly escaping HTML in the Link field title.
• Fix - Fixed bug showing Discussion and Comment metaboxes for newly imported field groups.
• Fix - Fixed PHP warning when loading meta from Post 0.
• Dev - Ensure Checkbox field value is an array even when empty.
• Dev - Added new ACF_MAJOR_VERSION constant.

Release Date - 7 August 2019

• Tweak - Changed Options Page location rules to show "page_title" instead of "menu_title".
• Fix - Fixed bug causing Textarea field to incorrectly validate maxlength.
• Fix - Fixed bug allowing Range field values outside of the min and max settings.
• Fix - Fixed bug in block RegExp causing some blocks to miss the "acf/pre_save_block" filter.
• Dev - Added $block_type parameter to block settings "enqueue_assets" callback.
• i18n - Added French Canadian language thanks to Bérenger Zyla.
• i18n - Updated French language thanks to Bérenger Zyla.

Release Date - 15 July 2019

• Fix - Fixed bug where validation did not prevent new user registration.
• Fix - Fixed bug causing some "reordered" metaboxes to not appear in the Gutenberg editor.
• Fix - Fixed bug causing WYSIWYG field with delayed initialization to appear blank.
• Fix - Fixed bug when editing a post and adding a new tag did not refresh metaboxes.
• Dev - Added missing $value parameter in "acf/pre_format_value" filter.

Release Date - 3 June 2019

• New - Added "Preview Size" and "Return Format" settings to the Gallery field.
• Tweak - Improved metabox styling for Gutenberg.
• Tweak - Changed default "Preview Size" to medium for the Image field.
• Fix - Fixed bug in media modal causing the primary button text to disappear after editing an image.
• Fix - Fixed bug preventing the TinyMCE Advanced plugin from adding < p > tags.
• Fix - Fixed bug where HTML choices were not visible in conditional logic dropdown.
• Fix - Fixed bug causing incorrect order of imported/synced flexible content sub fields.
• i18n - Updated German translation thanks to Ralf Koller.
• i18n - Updated Persian translation thanks to Majix.

Release Date - 8 May 2019

• New - Added ACF Blocks feature for ACF PRO.
• Fix - Fixed bug causing duplicate "save metabox" AJAX requests in the Gutenberg editor.
• Fix - Fixed bug causing incorrect Repeater field value order in AJAX requests.
• Dev - Added JS filter 'relationship_ajax_data' to customize Relationship field AJAX data.
• Dev - Added $field_group parameter to 'acf/location/match_rule' filter.
• Dev - Bumped minimum supported PHP version to 5.4.0.
• Dev - Bumped minimum supported WP version to 4.7.0.
• i18n - Updated German translation thanks to Ralf Koller.
• i18n - Updated Portuguese language thanks to Pedro Mendonça.

Release Date - 6 March 2019

• Fix - Fixed bug causing issues with registered fields during switch_to_blog().
• Fix - Fixed bug preventing sub fields from being reused across multiple parents.
• Fix - Fixed bug causing the get_sub_field() function to fail if a tab field exists with the same name as the selected field.
• Fix - Fixed bug corrupting field settings since WP 5.1 when instructions contain < a target="" >.
• Fix - Fixed bug in Gutenberg where custom metabox location (acf_after_title) did not show on initial page load.
• Fix - Fixed bug causing issues when importing/syncing multiple field groups which contain a clone field.
• Fix - Fixed bug preventing the AMP plugin preview from working.
• Dev - Added new 'pre' filters to get, update and delete meta functions.
• i18n - Update Turkish translation thanks to Emre Erkan.

Release Date - 15 February 2019

• Fix - Added missing function register_field_group().
• Fix - Fixed PHP 5.4 error "Can't use function return value in write context".
• Fix - Fixed bug causing wp_options values to be slashed incorrectly.
• Fix - Fixed bug where "sync" feature imported field groups without fields.
• Fix - Fixed bug preventing get_field_object() working with a field key.
• Fix - Fixed bug causing incorrect results in get_sub_field().
• Fix - Fixed bug causing draft and preview issues with serialized values.
• Fix - Fixed bug causing reversed field group metabox order.
• Fix - Fixed bug causing incorrect character count when validating values.
• Fix - Fixed bug showing incorrect choices for post_template location rule.
• Fix - Fixed bug causing incorrect value retrieval after switch_to_blog().
• i18n - Updated Persian translation thanks to Majix.

Release Date - 11 February 2019

• New - Added support for persistent object caching.
• Fix - Fixed PHP error in determine_locale() affecting AJAX requests.
• Fix - Fixed bug affecting dynamic metabox check when selecting "default" page template.
• Fix - Fixed bug where tab fields did not render correctly within a dynamic metabox.
• Tweak - Removed language fallback from "zh_TW" to "zh_CN".
• Dev - Refactored various core functions.
• Dev - Added new hook variation functions acf_add_filter_variations() and acf_add_action_variations().
• i18n - Updated Portuguese language thanks to Pedro Mendonça.
• i18n - Updated German translation thanks to Ralf Koller.
• i18n - Updated Swiss German translation thanks to Raphael Hüni.

Release Date - 16 January 2019

• Fix - Fixed bug preventing metaboxes from saving if validation fails within Gutenberg.
• Fix - Fixed bug causing unload prompt to show incorrectly within Gutenberg.
• Fix - Fixed JS error when selecting taxonomy terms within Gutenberg.
• Fix - Fixed bug causing jQuery sortable issues within other plugins.
• Tweak - Improved loading translations by adding fallback from region to country when .mo file does not exit.
• Tweak - Improved punctuation throughout admin notices.
• Tweak - Improved performance and accuracy when loading a user field value.
• Dev - Added filter 'acf/get_locale' to customize the locale used to load translations.
• Dev - Added filter 'acf/allow_unfiltered_html' to customize if current user can save unfiltered HTML.
• Dev - Added new data storage functions acf_register_store() and acf_get_store().
• Dev - Moved from .less to .scss and minified all css.
• i18n - Updated French translation thanks to Maxime Bernard-Jacquet.
• i18n - Updated Czech translation thanks to David Rychly.

Release Date - 17 December 2018

• Fix - Added custom metabox location (acf_after_title) compatibility with Gutenberg.
• Fix - Added dynamic metabox check compatibility with Gutenberg.
• Fix - Fixed bug causing required date picker fields to prevent form submit.
• Fix - Fixed bug preventing multi-input values from saving correctly within media modals.
• Fix - Fixed bug where acf_form() redirects to an incorrect URL for sub-sites.
• Fix - Fixed bug where breaking out of a sub have_rows() loop could produce undesired results.
• Dev - Added filter 'acf/connect_attachment_to_post' to prevent connecting attachments to posts.
• Dev - Added JS filter 'google_map_autocomplete_args' to customize Google Maps autocomplete settings.

Release Date - 7 December 2018

• Fix - Fixed vulnerability allowing author role to save unfiltered HTML values.
• Fix - Fixed all metaboxes appearing when editing a post in WP 5.0.
• i18n - Updated Polish translation thanks to Dariusz Zielonka.
• i18n - Updated Czech translation thanks to Veronika Hanzlíková.
• i18n - Update Turkish translation thanks to Emre Erkan.
• i18n - Updated Portuguese language thanks to Pedro Mendonça.

Release Date - 1 October 2018

• Fix - Fixed various plugin update issues.
• Tweak - Added 'language' to Google Maps API url.
• Dev - Major improvements to the acf.models.Postbox model.
• Dev - Added JS filter 'check_screen_args'.
• Dev - Added JS action 'check_screen_complete'.
• Dev - Added action 'acf/options_page/submitbox_before_major_actions'.
• Dev - Added action 'acf/options_page/submitbox_major_actions'.
• i18n - Updated Portuguese language thanks to Pedro Mendonça

Release Date - 12 September 2018

• Fix - Fixed unload prompt not working.
• Dev - Reduced number of queries needed to populate the relationship field taxonomy filter.
• Dev - Added 'nav_menu_item_id' and 'nav_menu_item_depth' to get_field_groups() query.
• Dev - Reordered various actions and filters for more usefulness.
• i18n - Updated Polish language thanks to Dariusz Zielonka

View the full changelog