I'm specifically trying to find out what versions of PostgreSQL & PostGIS(non-raster) are supported by FME "Desktop professional" version 2020.1.2. More generally it would be good to know if there is a place we can find this information for ongoing versions of various FME platforms. I have tried looking in these places... https://docs.safe.com/fme/2020.1/html/FME_Desktop_Documentation/FME_ReadersWriters/postgis/postgis.htm

https://downloads.safe.com/fme/2020/whatsnew_2020_1_3.txt

https://downloads.safe.com/fme/2020/whatsnew_2020_0_3.txt

but could only find (in the last link) that some fixes were done to support PostgreSQL 12+