CHGLOG PowerShell 7 vs 5.1: Check for Cmdlet Parameter Support

Windows PowerShellAssuming that you have already run Update-Help -force -UICulture “en-us” on your local machine, you can check if a set of cmdlets support a particular parameter.

Staying on the *-Service cmdlets, execute the following to check which cmdlet supports the –ComputerName parameter in your target PowerShell version:

$s = Get-Help *-service
$ | % { $Psitem; Get-Help $PSItem -Parameter ComputerName }



CHGLOG PowerShell 7 vs 5.1: Get-Service & Set-Service -ComputerName Parameter is Gone

Windows PowerShellThe –ComputerName parameter in Get-Service and Set-Service permits targeting a remote machine without relying on Windows PowerShell remoting in 5.1.x. This parameter no longer exists in the new PowerShell 7.0.0.

Next to this change, the following parameters of the Get-Service cmdlet now accept wildcard characters by default:

– DisplayName
– Exclude
– Include
– Name
– RequiredServices

PowerShell 7 RTM / GA!

Windows PowerShellDespite unexpected hiccups which resulted in the more than one month+ delay, it was announced earlier today by the PowerShell Team blog on Wed 4 Mar 2020 that the latest open-source, cross-platform* PowerShell 7.0.0 (based on .NET Core 3.1) has finally gone RTM and is now generally available for download on GitHub.

Read all about it from the official source or from independent sources (here and in German here), including important end-of-life (EOL) information concerning the previous version of .NET Core 3.0 over here.

See also What’s New in PowerShell 7.0.

* Windows, Linux, macOS (x64 and ARM platforms)

PowerShell: Determine The Last Day of a Month (incl. the Day of the Week)

Except for February, it is possible to hard-code the last day of each month since the number of days is fixed. However, you still have to determine the day of the week separately.

Rather than doing this manually, the code snippet below should do the trick:

#determine the last day of the first quarter of the year 2020 including the day of the week (Jan to March)

$date = Get-Date "2020-01-01"
$qtr2 = $date.AddMonths(3)
#Mittwoch, 1. April 2020 00:00:00

$qtr2FirstDay = Get-Date -Month $qtr2.Month -Day 1 -Year $qtr2.year;
#Mittwoch, 1. April 2020 23:56:43

$qtr1LastDay = $qtr2FirstDay.AddDays(-1);
#Dienstag, 31. März 2020 23:56:43

Windows PowerShell 5.1, PowerShell Core 6.x & (slipped Jan 2020 GA) PowerShell 7

Windows PowerShellPowerShell Core 6.x (6.0, 6.1 and 6.2) is Microsoft’s initial attempts to bring the veteran Windows PowerShell outside of its core Windows ecosystem to Linux and macOS based platforms. It is designed to run side-by-side (SxS) when installed on supported Windows operating systems where the feature set is not on par with Windows PowerShell due to its high dependency on Windows specific components and the full .NET Framework stack.

This has not stopped PowerShell enthusiasts from writing scripts that already utilize new PowerShell Core functionality (but often not properly “labelled”). Besides breaking backwards compatibility, such code may pose a real risk if not closely inspected first for suitability of use. This is because many are either delivered with sparse or incomplete documentation and neither follow good software development practices nor have security baked right in i.e. lack of safety nets* due to “fire fighting” nature in the real world, for instance.

Although it now looks like the planned January 2020 GA of PowerShell 7 per the PowerShell team has slipped – with a possible yet unannounced Release Candidate 2 (RC2) – you can start preparing for the transition to the “harmonized” P7 version based on the .NET Core 3.1 LTS by working on the last Release Candidate v7.0.0-rc.1 (2019-12-16) posted on GitHub.

* version check, try/catch blocks, advanced functions, etc.

PowerShell 7.0 Release Candidate

Announced as a “go live” PS 7 Release Candidate by the PowerShell Team blog on Mon 16 Dec 2019 PST,  the General Availability, GA of PowerShell version 7.0 is expected to be unleashed sometime in Jan 2020.

Read how “awesome” PowerShell 7 has come of age, particularly its tight .NET Core and SDK Docker image integration, and improved performance, not to mention its cross compatibility with Windows PowerShell 5.1 and Linux systems.

Next Release: PowerShell 7 / .NET Core 3.0

Windows PowerShellFollowing the March 2019 release of PowerShell Core 6.2, the Microsoft PowerShell team announced that Windows PowerShell 5.1 and the PowerShell 6.x Core version will converge into a single version known as PowerShell 7.

Apart from automation across Linux, macOS and Windows, a very high degree of compatibility with existing Windows PowerShell (5.x) modules can be achieved with the next release of PowerShell 7 by leveraging changes in .NET Core 3.0 (such as the return of Out-GridView in Windows).

Unlike the current PowerShell Core support lifecycle, PowerShell 7 will have both LTS (Long Term Servicing) and non-LTS releases which aligns closely with the .NET Core support lifecycle.

PowerShell 7 in Windows is planned to ship as a side-by-side feature with Windows PowerShell 5.1. No information around the PS7 release date in a future version of Windows 10 or Windows Server is available though as the release timelines of .NET Core and Windows do not align.

According to Microsoft, May (2019?) is the likely first Preview release of PowerShell 7 with the generally available (GA) some time after the GA of .NET Core 3.0.