• Remove unnecessary styles for links in collections. They now use the default link styling.
• Improve text and especially link colors on alerts. Links in alerts were previously unreadable due to using the default link color.
• The navigation now needs to be manually initialized with the luma.nav() method. See the documentation section for the navigation component for more details.

Versions 0.4.4 and 0.4.4 were minor fixes based on these mentioned improvements and not worth further expanding upon.