Restrict the compiler to use only the features available in C# 4.0
specification.
.TP
-.I "future"
+.I "experimental"
Enables unstable features from upcoming versions of the language.
.PP
Notice that this flag only restricts the language features available to
-the programmer. A version of produced assemblies can be controled using
+the programmer. A version of produced assemblies can be controlled using
.I SDK
option.
.ne