Did the ampersand behavior change in Powershell 3.0?

Question

I've gotten the following error when installing windirstat and ilmerge on Chocolatey. I'm suspicious that ampersand behavior changed in PowerShell 3.0.

Running powershell -NoProfile -ExecutionPolicy unrestricted -Command "& import-module -name  'C:\NuGet\chocolateyInstall\helpers\chocolateyInstaller.psm1'; & 'C:\NuGet\lib\ilmerge.2.10.526.4\tools\chocolateyInstall.ps1'". This may take awhile and permissions may need to be elevated, depending on the package.
ilmerge did not finish successfully. Boo to the chocolatey gods!
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[ERROR] The expression after '&' in a pipeline element produced an invalid object. It must result in a command name, script block or Command
Info object.
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Answer 1

The problem was not ampersand behavior I had to replace $oc = Get-Command 'Write-Host' | ?{$_.ModuleName -eq 'Microsoft.PowerShell.Utility'} with $oc = Get-Command 'Write-Host' -Module 'Microsoft.PowerShell.Utility' as well as make a similar replacement for a Write-Error wrapper.

Answer 2

How about starting PowerShell with the -version 1.0 or 2.0 parameter? Then run the above command and see if there is any difference.

At the commandline

PowerShell -version 2.0