In article , Ralph Fox
wrote:

IME Safari 5.1.7 is a little bit out of date as web standards go.

Safari (Mac OS) is at version 11.1, making 5.1.7 look old.

Is there a Windows browser that uses the Safari rendering engine?

chrome uses apple's webkit, although google forked it several years
back, so it will be very close but not exactly the same.

The fork was in 2013, just one year after Safari stopped supporting Windows.

coincidence. one had absolutely nothing to do with the other.

When I compared Chrome with GNOME Web (a.k.a. Epiphany) which uses
Webkit (the Safari rendering engine) on Linux, I saw some differences
especially with rendering SVG.

what some linux app did with an unknown version of webkit is not
relevant to what safari itself does.

FWIW the JavaScript engines for Chrome and Safari have always been different.

yep, with chrome not being as optimized as safari.