So, there's this Minecraft mod called Advent of Ascension or AoA for short, it was formally called Eternal Isles. AoA adds content like 22 dimensions 275 mobs 29 bosses skills and a large number of items and blocks. The original developer who made the mod is called Xolova, but because of burn out and a seizure he quit developing AoA, then a person named Tslat took the place of developer and he and a small team of devs continue to update the mod to this day.
Now because of the age of the mod (first version was released back in 2014) there is lost versions of the mod and there's 2 reasons why these versions are lost like dead mediafire and megalinks and being posted in a dead website This is the list of the lost versions
1.0.1
1.1.2
1.1.3
1.1.4
1.1.5
1.1.5H
2.0.1
2.0.2
2.0.3
2.1 (non hotfix)
2.2.1
2.2.2
2.2.3
2.2.4
2.3.4
2.3.6
2.3.7
2.3.8
2.3.9
2.3.10
2.4.2
2.4.3
2.4.6
2.4.7
only 4 lost version have been found by me
1.0
1.1
1.1.1
2.0.4
there's also a chance that theirs dev versions for the cancelled updated 2.5 but it's highly unlikely that it exist also some buggy version for 1.0 exist, and the only proof of it's existence is from a TheAtlanticCraft video and the whereabouts of this version remains unknown