Anniversaries, birthdays, and new faces — read from your directory and waiting on everyone’s Home the morning they happen. You just add the congrats.

Dates ride along with the same directory sync as everything else. New hire on Monday, celebrated on Monday — nobody keeps a list.
Birthdays only post for people who choose to share them. Anniversaries come from start dates — no surprises, no oversharing.
Milestones land on the Home page people open every morning — not buried in another digest email.