Is TLS 1.3 supported on windows server 2019? I found a documentation from microsoft but for some reason the matrix doesn't include server 2019: https://docs.microsoft.com/en-us/windows/win32/secauthn/protocols-in-tls-ssl--schannel-ssp-
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Based on Microsoft TLS 1.3 Support Reference from 20/01/30 I would suggest that it is not supported.– Steffen UllrichMar 5, 2021 at 8:07
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@SteffenUllrich that link is dead.– RonJohnMay 23, 2022 at 17:40
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4 Answers
Windows Server 2019 is little more than a rebranded Windows Server 2016 which is most likely why it's not mentioned in the compatibility matrix you mention.
If you need to compare, Windows Server 2019 matches Windows 10 1809 (just like 2016 matches 1607) so you can take that for reference.
Feel free to edit the Microsoft documentation to add Windows Server 2019, if the edit is approved that'll actually give you an "authoritative" answer from Microsoft.
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1I've created a pull request with the updated documentation. I'll update when the change is accepted– ManuelMar 15, 2021 at 7:22
As mentioned in a comment, i've created a pull request for the documentation and it was accepted. https://docs.microsoft.com/en-us/windows/win32/secauthn/protocols-in-tls-ssl--schannel-ssp-
This means Windows Server 2019 does not support TLS 1.3
According to this link, Windows 2019 does not support TLS 1.3. https://docs.microsoft.com/en-us/windows/win32/secauthn/protocols-in-tls-ssl--schannel-ssp-
Windows OS TLS 1.0 Client TLS 1.0 Server TLS 1.1 Client TLS 1.1 Server TLS 1.2 Client TLS 1.2 Server TLS 1.3 Client TLS 1.3 Server
Windows 10, version 1809//Windows Server 2019 Enabled Enabled Enabled Enabled Enabled Enabled Not supported Not supported
Support for TLS 1.3 was included with Windows Server 2019 Build 18362 (1903) and Windows 10 Build 18362 (1903).
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1The current official list from Microsoft dated 9/28/2021 is docs.microsoft.com/en-us/windows/win32/secauthn/… shows that these versions do not have TLS 1.3 support. Do you have a supporting reference? I did find this article indicating TLS 1.3 support was added to the Windows Insider Preview microsoft.com/security/blog/2020/08/20/… but I can't find any reference to general release of TLS 1.3 in Windows 10 or 2019. May 10, 2022 at 13:58