On August 14, 2026, the PowerShell team released three updates: v7.6.5, v7.5.10, and v7.4.19, which include a fix for inconsistent dot-sourcing behavior in signed advanced-function scripts under Windows Defender Application Control. Notably, v7.6.5 is the first version to target .NET 10, while the earlier versions remain on .NET 8 and .NET 9, with the latter heading towards end-of-life in May 2026. The patch corrects a specific execution path issue affecting advanced scripts but does not introduce any new vulnerabilities or CVEs. Additionally, all three releases include an update to the Microsoft.PowerShell.Archive module and improvements to build pipelines for better stability and performance

PowerShell 7.6.5, 7.5.10, and 7.4.19 Released: WDAC Fix and .NET 10 Update

The PowerShell team released three simultaneous servicing updates on August 14, 2026: v7.4.19, v7.5.10, and v7.6.5. All three versions include a one-line engine patch that resolves inconsistent dot-sourcing behavior for signed advanced-function scripts running under Windows Defender Application Control. Notably, v7.6.5 marks the first time PowerShell targets .NET 10, while the older branches remain on .NET 8 and .NET 9 respectively. There are no new CVEs, as the patch addresses a WDAC enforcement inconsistency rather than a security vulnerability, alongside routine updates to the Microsoft.PowerShell.Archive module.

PowerShell 7.6.5, 7.5.10, and 7.4.19 Released: WDAC Fix and .NET 10 Update @ NT Compatible