Fixes #12922 - Fix release date

[sdwheeler]

PR Summary

Fix release date

• Fixes AB#566962
• Fixes Incorrect year listed for PS 7.6 Release Date #12922

PR Checklist

• Descriptive Title: This PR's title is a synopsis of the changes it proposes.
• Summary: This PR's summary describes the scope and intent of the change.
• Contributor's Guide: I have read the contributor's guide.
• Style: This PR adheres to the style guide.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[Copilot]

Pull request overview

Updates the PowerShell support lifecycle documentation to correct the PowerShell 7.6 release information, addressing the incorrect year reported in #12922.

Changes:

• Updated the PowerShell 7.6 release date from 18-Mar-2028 to 18-Mar-2026.
• Adjusted the PowerShell 7.6 table entry to reflect its LTS status.
• Refreshed the document metadata ms.date to reflect the update date.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[learn-build-service-prod]

Learn Build status updates of commit 5e459b8:

✅ Validation status: passed

File	Status	Preview URL	Details
reference/docs-conceptual/install/PowerShell-Support-Lifecycle.md	✅Succeeded	View (>=powershell-5.1)

For more details, please refer to the build report.