Advanced Custom Fields 3.1.1

Released on Monday, 09 February 2026 14:00

Maturity: Stable

Files

Download files included in this release for your setup.

Free Version

Essential features to get started

Free

Date 09 February 2026

File Name acf_v3.1.1_free.zip

File Size 2.94 Mb

Pro Version

Advanced features for professional use

Pro

Date 09 February 2026

File Name acf_v3.1.1_pro.zip

File Size 3.61 Mb

Read the detailed notes about this release, including new features, improvements, and bug fixes.

Security

Fixed vulnerabilities in AJAX handling, including unauthenticated file access and SQL injection. High - CVE-2026-21627.

Added

Added support for custom ACF IFrame title attribute using the "URL|title" field value format.
Added support for Facebook Reels in ACF Video.
Added Smart Tag {this.filename} for use in the ACF Download Button field > Button Label, returning the selected file name.
Added Subform support for ACF Articles.
Added support for "webp, stp, step, igs, iges" file types in File Upload field.

Fixed

Fixed Compatibility with YooTheme 5.0.0 BETA.
Fixed ACF Articles Status Input Filter not respecting its value in certain cases.
Fixed ACF Gallery preventing uploads when the Gallery Files Limit was set to a single file.
Fixed ACF Gallery not outputting alt text when images opened in the lightbox.
Fixed Some HTML attributes stripped when editing content in TinyMCE editor.
Fixed ACF URL "target" setting not return a valid value in YooTheme.
Fixed error “Call to a member function get() on array” could appear in rare cases when using ACF fields inside a Subform field.
Fixed Video custom field to correctly load external URLs, including self-hosted video files (mp4, mov, ogg, webm).
Fixed QR Code custom field not allowing VCARD syntax to be entered correctly.