From Microsoft Q&A website announced; To replace MSDN and TechNet:
The migration is expected to be completed by the mid of 2020.
Microsoft Q&A - Frequently Asked Questions - Microsoft Q&A (Preview)
Technical documentation, API, and code examples | Microsoft Docs
Microsoft has announced that they are releasing a new Q&A website. It is a mixture of MSDN and TechNet forums. This means that Microsoft is planning to discontinue MSDN and TechNet forums. It is a part of the larger Microsoft Docs umbrella where Microsoft is planning to bring on all the documentation, code snippets, and Q&A together.
The migration is expected to be completed by the mid of 2020.
Microsoft Q&A - Frequently Asked Questions - Microsoft Q&A (Preview)
Technical documentation, API, and code examples | Microsoft Docs