vBulletin 6.0.6 is now available for download for self-hosted customers. vBulletin Cloud sites will be updated automatically in the coming weeks. Notable front-end changes include improvements to the Calendar Module, which now allows site administrators to display birthdays and holidays. These are for display only and do not permit replies or comments. Birthdays show for users active in the last 30 days, and holidays can be managed in the Admin Control Panel with details shown in a popup dialog. New style variables have been added to control the colors of these event types.

On the backend, a Calendar section allows administrators to create holidays, merge User Reputation Display into User Ranks, and offers a new markup tag for template improvements. The user promotion system has been updated to trigger promotions based on the user’s last post date.

For installation and upgrade instructions, system requirements, current version support schedule, and discussion links, please refer to the full announcement.

via (https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4494235-vbulletin-6-0-6-changes-and-updates)