[Man0warr]

It's going to be tough to know the exact dates for when some of these item upgrades happened.

They didn't all happen in the same patches, nor were they always listed in the patch notes when they did happen (NToV loot was getting upgraded as early as 2 months in, for example). Some times guilds went weeks between kills and got different loot unexpectedly. Then there is stuff like Tunare who was so buggy for most of early/mid Velious that she was unkillable and no one is sure what was on her loot table originally and what was added (or if it was there originally, did it get upgraded? Like the FT3 Earring).

The only for sure info we have is the original stats, and the final ones. Outside of the 2-handed weapons, which mostly all got upgraded in a single patch when they reworked 2h Damage Bonus and upped the ratios for most of the Velious 2h weapons. You guys might just need to pick an arbitrary date in the timeline to upgrade everything.