For a few years now, but yes, now with support in Production.<p><a href="http:&#x2F;&#x2F;www.hanselman.com&#x2F;blog&#x2F;OmniSharpMakingCrossplatformNETARealityAndAPleasure.aspx" rel="nofollow">http:&#x2F;&#x2F;www.hanselman.com&#x2F;blog&#x2F;OmniSharpMakingCrossplatformNE...</a><p>Also <a href="http:&#x2F;&#x2F;get.asp.net" rel="nofollow">http:&#x2F;&#x2F;get.asp.net</a> and <a href="http:&#x2F;&#x2F;code.visualstudio.com" rel="nofollow">http:&#x2F;&#x2F;code.visualstudio.com</a>