I moved on to Turnpike 6 when they stopped releasing security updates for 5. They put in facilities for viewing HTML, but followed the Turnpike ethos of text is king -- the default is text and you have to explicitly select HTML display. And even then it offers an inline display that does fancy formatting and pictures but does *not* enable scripting, by design. Which is one reason why I'm still using Turnpike.

I keep finding new and interesting ways in which the MS office software still cannot do things I could do decades ago in other software.