In Discourse 2.3.0.beta4, a new feature was introduced allowing staff to add custom call-out notices above posts—similar to the notice shown for new or returning users’ first posts. These notices support Markdown formatting and can be added via the post admin actions menu (
button) by selecting 
Add Staff Notice. dan shared this update alongside a screenshot demonstrating the feature’s appearance.
In Discourse 2.3.0.beta4 we added a special call-out notice for new/returning users. Staff can now add custom call-outs above posts, which appear similar to the new user first post call-out. In latest Discourse, we made it so you can also use Markdown.
This notes can be added from the 
button (post admin actions) and 
Add Staff Notice.
2 posts were split to a new topic: Staff Notices available to TL4?
