PowerShell 7.7 reaches GA with security hardening and script changes
✅ Microsoft released PowerShell 7.7, a Standard Term Support release built on . NET 11.
It strengthens Constrained Language Mode, remoting validation and help extraction, and adds commands and parameters including New-TemporaryDirectory and Join-Path -Extension.
Several changes can affect existing automation. New-Guid generates version 7 UUIDs by default; Test-Json requires an explicit option to fetch external schema references; and explicit false switch values are handled more consistently.
The release also fixes startup, completion, path handling and remote-shell issues. Microsoft identifies these behavior and breaking changes for teams reviewing production scripts before upgrading.
Partner briefing
- What it is
PowerShell 7.7 is generally available on . NET 11 as an STS release.
- What’s changing
Security hardening and command improvements accompany UUID, JSON-schema and switch-handling behavior changes.
- Why it matters
Existing automation can be affected by documented breaking and behavior changes, alongside reliability fixes.
- Who it affects
Administrators, automation engineers and partners maintaining PowerShell scripts and remote-management workflows.