Enhancements
Video Module: Add support for WebM as the main video type not just fallback (#1669)
Stats: Collect data on usage of iFrame UI and Legacy UI (#3711)
Add parameter to [fl-safe] shortcode to allow for a custom message to be displayed in the UI (#3723)
Bug Fixes
Fixed deleting a blank column causing the dom nodes for the entire layout to be deleted in Themer layouts (#3752)
Accordion Module (a11y): Fix issue when FontAwesome plugin is active (#3648)
Accordion Module: tweak font CSS so it's not as easily overridden (#1756)
Button Module: Fix background color not working on PHP 7.4 and small issue with border hover color (#3709 & 3729)
Border Field: Tweak code to ensure there's proper checking for top right border radius (#3716)
List Module: Fix icon not rendering if using shared icon (#3806)
Map Module: fix error when using field connections and custom field is left blank (#3505)
Menu Module (a11y): fix aria-haspopup being on the wrong element (#3236)
Post Carousel & Post Slider Modules: Fix posts displaying if no result when ACF relationship is used (#1323)
Slideshow Module: Fix rendering issues with FSE themes (#2967)
Video Module: Fix videos not using mp4 or webm extension no longer displaying and fix videos being forced to a 16:9 format (#3733 & 3765)
Outline Panel: Fix error when using a Slider Revolution widget (#3706)
WooCommerce: Fix compatibility with Restaurant for WooCommerce Plugin (#3724)
Multi-Site: ensure error message fires when you try to use an incompatible BB version (#3509)
Row settings: Only show vertical align when needed (#2988)