Check for out of date PowerShell modules

Check-Modules.ps1

$Modules = Get-Module -ListAvailable | 
    Where-Object { $_.RepositorySourceLocation -like '*powershellgallery*'} | 
    Group-Object Name  | 
    ForEach-Object { $_.Group | Sort-Object Version -Descending | Select-Object -First 1 }

$ModuleCheck = ForEach ($Module in $Modules) {
    Find-Module -Name $Module | Select-Object Name,Version,@{N='InstalledVersion';E={$Module.Version}}
}

$OutOfDateModules = $ModuleCheck | Where-Object {[version]$_.Version -gt [version]$_.InstalledVersion}

$OutOfDateModules