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Release v6.6.2

Advanced Custom Fields Pro v6.6.2

What's new in v6.6.2

Advanced Custom Fields Pro v6.6.2 was released on . Customise WordPress with powerful, professional and intuitive fields. See the full changelog below and compare with the complete version history.

Release details

Released
6.3 MB
File available

Changelog

Other
  • Release Date 29th October 2025*
Added
  • Added a new `convert_field_name_to_lowercase` JS filter to allow uppercase letters in ACF field names
  • The form for V3 Blocks can now be optionally hidden from the sidebar via a new `hideFieldsInSidebar` setting in block.json
  • V3 Blocks now display an "Open Expanded Editor" button in the sidebar for easier access to the full edit form
Fixed
  • The buttons to reorder ACF metaboxes are no longer hidden for metaboxes in the block editor sidebar
  • V3 Blocks now display a fallback message when the block preview can't be rendered due to invalid HTML being used in field values
  • V3 Blocks no longer show a loading spinner when preloaded
  • V3 Blocks now save default field values even if the block wasn't interacted with before saving
  • Pressing CMD/CTRL + Z no longer causes the fields to disappear in V3 Blocks
  • The form for V3 Blocks now opens on the left side in RTL languages

Compatibility

Requires WordPress
6.2
Tested up to
7.0
Requires PHP
7.4

Not yet scanned

Advanced Custom Fields Pro v6.6.2 has not been security scanned yet.