They have worked on improving error messages between Windows PowerShell and PowerShell, e.g.

    PS C:\> 1/0
    Attempted to divide by zero.
    At line:1 char:1
    + 1/0
    + ~~~
        + CategoryInfo          : NotSpecified: (:) [], RuntimeException
        + FullyQualifiedErrorId : RuntimeException

is now:

    PS C:\> 1/0
    RuntimeException: Attempted to divide by zero.

And everywhere else they've tried to make a shorter, clearer default error.