v2.y

• Added dark theme
• Added toggle switches
• Added support for date, date/time, month, telephone, time, and week inputs
• Added ripple around checkboxes and radio buttons
• Added full-width card class
• Added ability to set accent color via custom property
• Made more elements derive their theme colors from their colors
• Made unchecked checkboxes and radio buttons match their surrounding text color
• Disabled animations when prefers-reduced-motion is set to reduce
• Increased default card corner radius to 3px
• Slightly reduced padding on <select> drop-down arrows
• Fixed radio buttons, slider thumbs, and circular progress spinners appearing square on old Android browsers
• Removed Internet Explorer fallback lines from material-depth.css
• Removed suggestion to set circular progress spinners' border-top-colors
• Improved demo page (in addition to updating it to include the new features)

v2.x

This “release” is to delineate the version at this point from the upcoming update (after which releases will continue to be more properly delineated).