The open source Samba server jumped three versions in a matter of hours this week, when the Samba Team found a critical signal handling bug in version 2.0.1. of its software. Samba is a Unix- based file and print server that supports Microsoft’s Server Message Block (SMB). A Samba server plays nicely with clients running both Unix and Windows NT. The Samba Team, a loose-knit coalition of twenty programmers from all over the world, apologized for any inconvenience that the 2.0.1 bug may have caused. Open source advocates argue that their rapid response to the crisis would be unthinkable for most software companies.