@Dukessa thank you.
**ACF Extended Pro 0.8.8.4:**
* Field: Flexible Content - Added "Layouts Locations Rules" setting
* Field: Flexible Content Grid System - Fixed undefined index in `get_flexible_grid()` when using "Container Size" setting
* Field: Flexible Content Grid System - Added `has_flexible_grid()` helper
* Field: Flexible Content Grid System - `has_flexible_grid()`, `get_flexible_grid()` & `get_flexible_grid_class()` now accept a post id as 2nd parameter
* Field: Checkbox/Radio - Added Dynamic Render Choice hooks
* Field: Added Phone Number field
* Field: Added Countries Selector field
* Field: Added Languages Selector field
* Field: Added Currencies Selector field
* Field: Added Post Formats Selector field
* Field: Color Picker - Added selected palette border color compatibility for gradients
* Field: Columns - Added "Fill" size and swapped the setting with "Auto" size. The "Auto" size will now fit the field size
* Field: Select - Added "Prepend" & "Append" settings
* Field: Image Selector - Choices are now compatible with `value : image` logic, allowing developers to save a custom value instead of Image ID/URL
* Field: Image Selector - Removed gallery setting selector due to unecessary complexity. Choices are now all merged into one single setting
* Field: Relationship - Enhanced Gutenberg post update detection for the Inline Add/Edit Post settings
* Field: Color Picker - Fixed RGBA library not being correctly initialized in the Gutenberg Editor
* Field: Date Range Picker - Fixed the JS not being correctly initialized in the Gutenberg Editor
* Field: Date Range Picker - Enhanced CSS Style of invalid dates to match the ACF Date Picker style
* Field: WYSIWYG - Fixed potential PHP warning when using an inexisting toolbar
* Module: Force Sync - Fixed json file timestamp update during the sync
* Field Settings: Required message - It is now recommended to use `{label}` to display the field label instead of the previous `%s`, for consistency (`%s` will still work)