6.4 When is the release, now the 6.3 version migration command does not work.

[neozhu]

Describe what is not working as expected.

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Exception message:
Stack trace:

Steps to reproduce

Include a complete code listing (or project/solution) that we can run to reproduce the issue.

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Console.WriteLine("Hello World!");

Further technical details

EF version: (found in project.csproj or packages.config)
Database Provider: (e.g. EntityFramework.SqlServer)
Operating system: (e.g. Windows 10)
IDE: (e.g. Visual Studio 2017 15.6)

[bricelam]

#1290 (comment)