That thread was from our pre-release Beta discussion category. Looks pretty uncontroversial, so I’ve moved it over to the Software section.
Just keep in mind that in the intervening 8 months, this feature has evolved from basic “duplicate detection” to a robust flexible way to manage multiple editions and releases of an album in your library.
That said, the starting point for our automatic detection is still unchanged:
And now you’ve got me wondering if @ComputerAudiophile has come around on this one? 