Apollo is all about communication. We have slowly improved project messages to the point that they became a forum-like system where the most recent discussion would bubble up to the top.
We have recently added yet a new feature to messages: the ability to archive them:
Only a project admin can archive messages and browse through the archived ones, using a search box at the top of the message list:
This feature will ensure that communication amongst team members stays focused, and old topics are stored away.