https://issues.dlang.org/show_bug.cgi?id=23594

          Issue ID: 23594
           Summary: TZ database does not support version 4 std.datetime
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: phobos
          Assignee: nobody@puremagic.com
          Reporter: alphaglosined@gmail.com

The IANA timezone database is now on to version four as of 2021.

std.datetime https://github.com/dlang/phobos/blob/master/std/datetime/timezone.d#L2108

Currently, it'll throw an exception if it sees it.

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