Public/Nuget/Update-ProjectPackage.ps1

function Update-ProjectPackage {
    [CmdletBinding()]
    param(
        [parameter(ValueFromPipeline, Mandatory, ParameterSetName = "VSPkgManager")]
        [System.__ComObject]$Project, 
        [parameter(ValueFromPipeline, Mandatory, ParameterSetName = "Path")]
        [string]$Path,
        [string]$Filter, 
        [string]$Version
    )
    
    begin {
        if ($PSCmdlet.ParameterSetName -eq "VSPkgManager") {
            $Path = (Get-Item $Project).DirectoryName
        }
    }
    
    process {
        Get-ChildItem $Path packages.config -Recurse|ForEach-Object {
            $packageItem = $_
            [xml]$config = Get-Content $packageItem.FullName
            Write-Verbose "Checking $($packageItem.FullName)"
            $config.packages.package|where {!$filter -bor $_.Id -like "*$filter*"}|ForEach-Object {
                Write-Verbose "Updating $($_.Id)"
                Update-NugetPackage -sourcePath ($packageItem.DirectoryName) -filter $_.Id 
            }
        }
    }
    
    end {
    }
}