Version 12 is out on the auto-updater.
Blockland v12 Released 2009-06-05 12:00:00
This update makes weapon, item and texture downloads optional so you can connect to servers faster. It also fixes some bugs and adds arch bricks.
Blockland v12 Windows
Blockland v12 Macintosh (dmg)
Blockland v12 Macintosh (zip)
List of Changes