You can find change log here
EF Core Toolbox is an extension for Visual Studio 2017. It provides a set of tools to help you to avoid an executing console commands during Entity Framework Core based development. Since you do not have to have a deal with EF Core tools commands directly, you don't need to add
Current version supports MS SQL Server database provider only.
This package contains the following tools:
You can find them in Visual Studio Tools -> EF Core Toolbox menu.