Desupported, officially - yes (a long time ago)
But, we didn't intentionally change anything. So it should still work, and if it's a simple fix, I'll fix it.
Can you be more specific than "does not work"?
For instance, from Schema Browser , Tables, just click on a table:
"ORA-01460: conversione richiesta non implementata o irrazionale
Same thing if you click on Data, on the right panel
Same thing for procedures
Well, it worked but there is an even weirder thing: if I check "Use oracle client" the direct connection does not work and yet it should be the same in both cases.
And however version 10g client is supposed to work with Oracle 8i
Perhaps I should install an older version of Toad just for those few old 8i still alive
So with Toad 15.1 no oracle client is really required, very interesting.
This could become really handy with Oracle versions way too far from the installed client.
And as to old versions you are quite right, it is better to have an older Toad than keeping on switching that option on and off
Have a nice day