• Fixed wrong interpolated variables with node-sass/Hugo.
• Added a check for interpolated variables to catch compilation errors with Node Sass when using Sass variables in calc() functions.
• Started using --bs-border-radius variables across more components.
• Added .d-inline-grid utility class.
• Fixed .tooltip-inner placement when using variations in fallbackPlacements.
• Fix selectors for dark mode carousel overrides when compiling with $color-mode-type: media-query.
• Updated the styling of floating labels when "floated" to include a background-color to help with multiple lines of text in textareas. This also fixes the colors when form elements are disabled in floating forms.
• Updated RFS to v10.0.0.

Full Changelog: https://github.com/twbs/bootstrap/compare/v5.3.0-alpha2...v5.3.0-alpha3