Mono .NET and C# features

I am trying to write an agent for the ACM Queue ICPC challenge... the instructions say C# agents will be run on linux via mono... which I don't have a ton of experience with. I try and use features of the most recent versions of C# and .NE开发者_Python百科T (var keyword, linq, etc)... will mono support this functionality?

The Mono C# compiler is considered feature complete for C# 1.0, C# 2.0 and C# 3.0 (ECMA). A preview of C# 4.0 is distributed with Mono 2.6, and a complete C# 4.0 implementation is available with Mono 2.8 or when building Mono from our trunk source code release.

http://www.mono-project.com/CSharp_Compiler

Also, checking this thread can be helpful:

The Limitation of Mono Runtime