> Browsers in the last year or so have added support for the the new TLS 1.3
> RSA-PSS Signature Algorithms (0x0804, 0x0805,...).
> I see them added in 1.1.1 dev and they even work without TLS 1.3 enabled in
> the build. Is there any plan to add support for them to 1.1.0?
No: it's a new feature and we don't add new features to stable branches.