I've updated a number of the libraries I contributed to Factor so they run with the latest version. These include:

• cont-responder, the continuation based web server
• Parser Combinators (the lazy list library I wrote was kindly updated by 'Yuuki' from the #concatenative IRC channel)
• sqlite and tuple-db, the database libraries
• concurrency (Erlang style messaging)
• Space Invaders Emulator

The Factor module system in the latest release is very nice. It makes loading space invaders as simple as:

"space-invaders" require

There have been a number of great features added to Factor recently, so it's worth a look if you haven't tried it out for a while.