Originally Posted by plantsower
I downloaded the STP for Catalina on MacJUpdate and when it was done it said I needed Mac OS 11.0 (Big Sur) to open it.
I just d/l'ed STP via this link at Download Safari Technology Preview for Mac | MacUpdate, and while I didn't complete the installation, I got to the last step with no problems in Catalina 10.15.7. (The d/l'ed .dmg is 84.7 MB.)


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