This script will get ALL locally installed Chocolatey Packages, and upgrade ALL of them (assuming they have upgrades available) and log to $PWD\Logs\ChocoLog.txt

ChocoUpgrade.ps1

function Write-TimeStampOutput {
    Param(
        [Parameter()]
        [String]
        $InputObject,
        [Parameter(ParameterSetName = 'LongDateTime', Mandatory)]
        [switch]
        $LongDateTime, 
        [Parameter(ParameterSetName = 'ShortDateTime', Mandatory)]
        [switch]
        $ShortDateTime,
        [Parameter(ParameterSetName = 'LongDate', Mandatory)]
        [switch]
        $LongDate,
        [Parameter(ParameterSetName = 'LongTime', Mandatory)]
        [switch]
        $LongTime,
        [Parameter(ParameterSetName = 'ShortDate', Mandatory)]
        [switch]
        $ShortDate,
        [Parameter(ParameterSetName = 'ShortTime', Mandatory)]
        [switch]
        $ShortTime,
        [Parameter(ParameterSetName = 'ShortTime')]
        [Parameter(ParameterSetName = 'ShortDate')]
        [Parameter(ParameterSetName = 'LongTime')]
        [Parameter(ParameterSetName = 'LongDate')]
        [Parameter(ParameterSetName = 'LongDateTime')]
        [Parameter(ParameterSetName = 'ShortDateTime')]
        [switch]
        $UTC
    )
    begin {
        #$PSBoundParameters.Keys
    }
    process {
        $Now = switch ($PSBoundParameters.Keys) {
            'ShortTime' { 
                [datetime]::Now.ToShortTimeString() 
            }
            'LongTime' { 
                [datetime]::Now.ToLongTimeString()
            }
            'ShortDate' { 
                [datetime]::Now.ToShortDateString()
            }
            'LongDate' { 
                [datetime]::Now.ToLongDateString() 
            }
            'LongDateTime' { 
                [datetime]::Now.ToString('f', [cultureinfo]::CurrentCulture) 
            }
            'ShortDateTime' { 
                [datetime]::Now.ToString('MM/dd/yyyy|hh:mm:ss') 
            }
        }
        if ($UTC) {
            $Now = '{0}|UTC{1}' -f $Now, ([datetime]::Now.ToString('%K'))
        }

        $NowString = '[{0}]' -f $Now
        $OutMessage = '{0} {1}' -f $NowString, $InputObject
        Write-Output $OutMessage

    }
    end {

    }
}
Write-TimeStampOutput -InputObject 'Getting Locally Installed Chocolatey Packages...' -ShortDateTime -UTC *>> $PWD\Logs\ChocoLog.txt
$ChocoApps = choco list -lo -idonly
$OutMessage = 'Found {0} Chocolatey Packages Installed...' -f $ChocoApps.Count
Write-TimeStampOutput -InputObject $OutMessage -ShortDateTime -UTC *>> $PWD\Logs\ChocoLog.txt
$OutMessage = 'Starting Chocolatey Package Upgrades...'
Write-TimeStampOutput -InputObject $OutMessage -ShortDateTime -UTC *>> $PWD\Logs\ChocoLog.txt
choco upgrade $ChocoApps --y *>> $PWD\Logs\ChocoLog.txt
$OutMessage = 'Finished Chocolatey Package Upgrades...'
Write-TimeStampOutput -InputObject $OutMessage -ShortDateTime -UTC *>> $PWD\Logs\ChocoLog.txt