acf/compatibility

---

• Description
• Changelog
• Parameters
• Compatibilities
• Example
• functions.php

---

Description

Used to enable backwards compatibility support for changed functionality.

Support for each compatibility can be enabled by its own filter. Compatibilities are disabled by default and can be opted-in using the __return_true() function.

Changelog

• Added in version 5.2.0

Parameters

apply_filters( "acf/compatibility/{$name}", $enabled );

• $enabled (bool) Whether of not backwards compatibility support is enabled. Defaults to false.

Compatibilities

The following table lists the available compatibilities which can be enabled.

Name	Added	Description
field_wrapper_class	5.2.0	Field class names changed in v5.2.0 from field_type-{$type} to acf-field-{$type}. This change was introduced to better optimise JS performance.

Example

This example demonstrates how to enable backwards-compatibility for field class names.

functions.php

add_filter('acf/compatibility/field_wrapper_class', '__return_true');