Mono 0.18 is Released
From the announcement: "The Mono team is proud to release Mono 0.18, with plenty of bug fixes and improvements. If you are a happy 0.17 user, this release is a happiness extension release. Many bugs in the runtime, class libraries and C# compiler have been fixed." Additionally, Qt# (a C# language binding for the Qt toolkit) 0.6 was released too.
