For some reason in the new yammer, we can choose the announcement button, however, there is no option for a title. This is very useful in our organisation as our bulk communication is yammer and not email.
I've tried clearing cache, incognito browser and tried Edge as well.
@devwrangler In New Yammer, the Announcement is a flag on the post (which drives notifications) and not a separate post type. This is why you can set a Poll or Praise or even a Question as an Announcement.
In your case, set the first line of the post in Bold Text and it will essentially replicate the look and feel of the Classic Yammer Announcement post type.