Can't run 11.4.2 on Windows 8.1

Hi. I installed 11.4.2 over 11.3.2 and when I tried to start the server I got this error:
icuuc.dll (icuin.dll) is not installed on the system
After I downloaded the dlls from dll-files.com the error changed to
procedure entry point uenum_next could not be located in server.dll.
I can't figure out how to fix this so I rolled back to 11.3.2.

Now for me Windows 8.1 support is over. If this is the case, it can be stated clearly on the download page and elsewhere (where appropriate).

Or if it's possible to avoid the dependency on the 2 dlls that are only present in Windows 10, then please change it so that Maria uses the Unicode support dlls that the underlying Windows has, and not strictly icuuc.dll (icuin.dll).
I'm sure Windows 8.1 has enough Unicode support for that.