Fix release date (#12923)

Author: sdwheeler

reference/docs-conceptual/install/PowerShell-Support-Lifecycle.md

@@ -1,6 +1,6 @@
 ---
 description: Details the policies governing support for PowerShell.
-ms.date: 03/18/2026
+ms.date: 04/03/2026
 ms.topic: lifecycle
 title: PowerShell Support Lifecycle
 ---
@@ -124,7 +124,7 @@ lists the end-of-support dates for the current versions of PowerShell:
 
 |         Version          | Release Date | End-of-support |  .NET Version   |
 | ------------------------ | :----------: | :------------: | --------------- |
-| PowerShell 7.6 (preview) | 18-Mar-2028  |  14-Nov-2028   | [.NET 10.0][19] |
+| PowerShell 7.6 (LTS)     | 18-Mar-2026  |  14-Nov-2028   | [.NET 10.0][19] |
 | PowerShell 7.5           | 23-Jan-2025  |  10-Nov-2026   | [.NET 9.0][14]  |
 | PowerShell 7.4 (LTS)     | 16-Nov-2023  |  10-Nov-2026   | [.NET 8.0][13]  |