I'm not aware of any Safari beta for older versions of macOS. I don't recall them doing that in the past either. They usually do the Safari beta as part of the developer and public beta of the new OS, and then release just the browser for earlier OS versions once that's all ready in the autumn.
"I feel your pain."
I have a good feeling about STP 84.
Apple just updated Safari TP to Release 84, V13.
Still no joy with STP Release 84 (Safari 13.0, WebKit 14608.1.25.2) on macOS 10.14.5 (18F132) with 1PW Version 7.3 (70300020). I'm inconvenienced enough to temporarily try the latest 1PW beta build if anyone has it working with STP 84 and 10.14.5… Thanks!
@btn I'm running 7.3.1.BETA-0 with STP and no luck...
It's not an issue 1P can fix, it's a bug with STP.
At this point we do not expect this issue to be resolved in STP. It looks like it should hopefully be fixed when Safari 13 is released. I apologize for the inconvenience.
Ugh that's disappointing (I know its Apple's fault not Agilebits).
I submitted a report to https://feedbackassistant.apple.com (FB6142608). Maybe it'll help.
I'm continuing to see good results with both Safari 13 and the new STP 85 on macOS 10.15.
And still expectedly Safari 12 + STP 85 on 10.14 exhibits the same behavior that we've seen since STP 80.