If you are writing PowerShell code, you might have realized that there weren’t really improvements to the PowerShell Integrated Scripting Environment (PowerShell ISE) in the last couple of releases. With PowerShell becoming more popular on cross-platform systems, Visual Studio Code (VS Code) becomes the editor of choice. However, by default Visual Studio Code has a different behavior than the PowerShell ISE. To make it even easier, the latest PowerShell extension for Visual Studio Code, now includes PowerShell ISE Mode. PowerShell ISE Mode in Visual Studio Code, helps you to replicate and enable the settings from the following Microsoft Docs article: How to replicate the ISE experience in Visual Studio Code.
The ISE was first introduced with Windows PowerShell V2 and was re-designed with PowerShell V3. The ISE is supported in all supported versions of Windows PowerShell up to and including Windows PowerShell V5.1.
The PowerShell ISE is no longer in active feature development. As a shipping component of Windows, it continues to be officially supported for security and high-priority servicing fixes. We currently have no plans to remove the ISE from Windows.
There is no support for the ISE in PowerShell v6 and beyond.