Post

Does anyone know the current status of the iFramed editor when using ACF blocks? I _really_ want to update my editor to the iFramed version, but still not sure if this is possible with ACF. 2023 post here: www.advancedcustomfields.com/blog/acf-blo... and issue here: github.com/AdvancedCust...

advancedcustomfields.comACF | ACF Blocks and WordPress Blocks v3WordPress 6.3 introduced a significant change in Blocks API v3, with the post editor now using iframes to contain each block if all registered blocks use

Keith Devon

@keithdevon.com

20 May 2025

For me, this could be a major reason for moving away from ACF. I've loved creating blocks this way but (especially with AI coding) it might be best to go native now.

Keith Devon

@keithdevon.com

The solution in the ACF blog post does work, you just need to ensure that the API version is also set to 3.

20/5/25, 2:45 pm0 reposts0 likes

Mark Wilkinson

@markwilkinson.dev

21 May 2025

To clarify you add the following to your block.json file. "apiVersion": "3" Not sure if you can do this if you are using really old ACF blocks that didn't use block.json