Bug Immediate Window package doesn't compile in Unity 2020.1.0f1

I just upgraded to Unity 2020.1.0f1, and unfortunately it broke the Immediate Window package (version 1.1.0-preview.3) with this error message:

Code (csharp):

1. [CompilerError] The type or namespace name 'UnityScript' could not be found (are you missing a using directive or an assembly reference?)
2. Compiler Error at Library/PackageCache/com.unity.immediate-window@1.1.0-preview.3/Editor/Sources/UI/Window/Console/OutputItem.cs:2 column 7
3. 1:   using UnityEngine.UIElements;
4. -->2:   using UnityScript.Scripting;
5. 3:   using UnityEditor.ImmediateWindow.Services;
6. 4:   using UnityEngine;
7.  

There's no workaround, the only option is to uninstall it.

 

I just tried looking for the package to install it on 2020.2.2f1 and it's not in the package list.