Unicorn has had some items with regards to it upgraded so it's not such a pain to access any more.  It's a hugely general update because so much was updated to stable counterparts.  I have brought some programs into the 20th century so we're finally just barely obsolete.

Upgrades are always an interesting question in the server world.  In the desktop world the traffic and attacks are limited so upgrading to the latest and greatest don't lead to problems then those programs have bugs.  Servers are different as the smallest flaw can be exploited and lead to the downfall of the system.  Reason being that the amount of traffic and the value of a high bandwidth connection is far greater than any desktop system.