"As of December 2010, no ECMA and ISO/IEC specifications exist for C# 3.0 4.0, and 5.0."
http://en.wikipedia.org/wiki/C_Sharp_(programming_language)
Does this mean newer syntax updates won't make it to Mono? or not as open as it used to be in terms of patent and copyright?
But cheer up, the ECMA team just updated the VM spec a couple of months ago and the committee is resuming work on new features.
We are all pretty psyched about the next steps for the ECMA standards.
As for Mono, we already have C# 5 and many of the new class library features. Having two independent implementations helps coming up with a better standard.
MonoTouch is currently based on Mono 2.10, while C# 5.0 is based on the new codebase on Mono 2.11.
We are waiting for Microsoft to officially bless C# 5.0 as complete before we can ship it, otherwise we will break people's code.
C# 3.0 was released 4.5 years ago.
I don't know how current that wikipedia article is.