Announcing PowerShell 7.7 GA Release

We’re excited to announce the General Availability of PowerShell 7.7, the next Standard Term Support (STS) release of PowerShell. PowerShell 7.7 is built on .NET 11, continuing the alignment between PowerShell and the modern .NET platform.

PowerShell 7.7 focuses on security hardening, new and improved commands, and reliability across the engine, remoting, and interactive shell experience.

Notable areas of improvement include:

• Security hardening across Constrained Language Mode, remoting, and help
• New commands and parameters
• More predictable handling of switch parameters
• Startup, tab completion, and file system fixes
• Module updates

For support dates, see the PowerShell support lifecycle article.

Highlights

• PowerShell 7.7 is built on .NET 11
• PowerShell 7.7 includes updates to the following modules:
  • Microsoft.PowerShell.PSResourceGet
  • Microsoft.PowerShell.Archive
• New and improved commands
  • Added the New-TemporaryDirectory cmdlet
  • Added the -Extension parameter to Join-Path
  • Added the -ExcludeProperty parameter to Format-Table, Format-List, and Format-Custom
  • Get-AuthenticodeSignature now returns a SubjectAlternativeName property
  • Added a ToRegex() method to WildcardPattern
  • New-Guid now generates version 7 (time-sortable) UUIDs by default
• Security hardening
  • Additional protections for Constrained Language Mode, including property assignment on non-core objects
  • Stronger argument and frame validation in PowerShell remoting, and restored schema validation in the CIM cmdlets
  • Implicit remoting protections now apply to resolved aliases
  • Stricter validation when extracting updatable help
  • Tighter file permissions for the fallback temporary home directory on Unix platforms
  • Test-Json no longer resolves external schema references unless you ask it to
• More predictable switch parameters
  • Explicit -Switch:$false values are now respected by Split-Path, New-PSSession, Test-Connection, Get-TimeZone, Get-Random, Get-SecureRandom, Get-Uptime, and New-Guid, and by the operator parameters of Where-Object
• Reliability and quality improvements
  • A damaged or unreadable per-user powershell.config.json no longer stops PowerShell from starting
  • Fixed Resolve-Path -Relative for names that begin with a dot
  • Fixed duplicate results from Get-Command fuzzy matching
  • Fixed Clear-Host for remote Windows sessions from non-Windows platforms
  • Fixed tab completion of positional parameters and completion for $PSBoundParameters.Keys
  • Improved handling of custom argument completers that return empty or null results
  • Fixed pwsh -file dot-sourcing of advanced-function scripts
  • Fixed progress bar rendering for double-width Unicode characters
• Telemetry now respects the Windows diagnostics and feedback setting

A quick example

New-TemporaryDirectory creates a uniquely named directory in the system temp folder and returns a DirectoryInfo object. Use -Prefix to make the directory easier to recognize:

# Create a uniquely named directory in the system temp folder
$workDir = New-TemporaryDirectory -Prefix build
$workDir.FullName

# Remove it when you're done
Remove-Item -LiteralPath $workDir.FullName -Recurse

Breaking changes

PowerShell 7.7 includes a small number of breaking changes. Review them before you upgrade production scripts.

• New-Guid generates version 7 (time-sortable) UUIDs by default instead of version 4. Use [guid]::NewGuid() when you need a fully random GUID.
• Format-Table, Format-List, and Format-Custom now validate that -Property is not null or empty.
• Null-or-empty argument validation now throws System.ArgumentException.
• Explicit false values for Where-Object operator switches, such as -EQ:$false, are now handled correctly.

Other behavior changes

These changes might also affect existing scripts:

• The update notification feature was removed from PowerShell.
• Test-Json requires -FetchExternalReference to resolve external schema references.
• Export-Csv no longer accepts -Append together with -NoHeader. Using -NoTypeInformation on the CSV cmdlets now writes a deprecation warning and has no effect.
• Get-ChildItem -Name with -Recurse now returns matching files in subdirectories when the path contains a wildcard or names a file.
• Constrained Language Mode restricts property assignment on non-core objects, including through ForEach().

Community contributions

PowerShell is built by a global community of users and contributors. Thank you to everyone who filed issues, tested previews, improved docs, and submitted fixes during the PowerShell 7.7 release cycle.

We want to give a special thanks to the community members who spent the most time helping others in the repository this release:

• Top pull request commenters: @iSazonov, @muffy86, and @KirtiRamchandani
• Top issue commenters: @mklement0, @237dmitry, and @rhubarb-geek-nz

The following individuals contributed code to the PowerShell 7.7 release:

• @adamdriscoll, @amritanand-py, @behradbhrmi, @cuiweixie, @jborean93
• @jorgeasaurus, @kasperk81, @KirtiRamchandani, @logiclrd, @MartinGC94
• @MathiasMagnus, @mikkas456, @powercode, @reabr, @rwp0
• @scuzqy, @SufficientDaikon, @ThioJoe, @trackd, @xtqqczze
• @yotsuda, @yuunnn

Call to action

Install PowerShell 7.7 now.

For more information, see the following articles:

• Install PowerShell on Windows, Linux, and macOS
• What’s New in PowerShell 7.7

Looking ahead

We continue to work on future releases of PowerShell. Preview releases will continue to provide early access to new capabilities and improvements, and your feedback on them helps us ship with confidence.

PowerShell Team