ACF | How To Upgrade a Legacy Block to block.json With ACF 6
ACF 6.0 introduces support for WordPress’s block.json method of block registration, the recommended way of registering blocks since WordPress 5.8 and
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ACF | ACF Blocks: Using InnerBlocks and Parent/Child Relationships
In this tutorial, we'll show you how to utilize the InnerBlocks component within an ACF Block. We'll also demonstrate how you can leverage relationships