I think they threw out the renewal....

yep...They threw it out...entirely. I've done over 20 Finales from C3/C4...it's reverted, making my work on finding all the changes completely pointless...

Well...Doppelganger's damage reflection (as well as neammy's) is still 25% reflected....Alby starting dungeon for G13 is reverted to basic across all difficulties...more to come as I "thoroughly" explore.

False, everything was not taken out entirely. There are some changes, but it's not completely the same as it was when Chapter 3 was renewed in Generation 14.

Yesterday, I have completed Generation 10 on my alternative character. Instead of being required of having level 10 exploration, I needed level 3 exploration, just as it was required in the Generation 17 renewal. Once I reached the final of Generation 10, my mission was advanced difficulty as opposed to intermediate, but there was no part 2 of the battle, just a Life Drain on the Doppleganger and the fight has ended, Nao thanked me and the credits rolled.

I believe that most of the generations (9~16) now are based on your total level again, but I am unsure if the rewards from the renewal are still with us. Once I get past Generation 13, I'll report back.

Regardless, I'm infuriated how Nexon are lacking with their patch notes department, letting their players know what exactly changed, and how nobody in the community seems to care about it.

...you know I care about it considering I spent....*looks at log* several days and hours on end updating all of C3 and half of C4 (SOrry G16...stupid afk events). Nice to know someone keeps their own tabs on changes too. x_x yes C3 and C4 has reverted to level-based missions. Rewards from renewal have been reverted (such as SM exp from difficulty, quest rewards...so on and so forth). As far as Change for change, I do not know.

So, were the AP and stats from G13~16 undone? (Also the last update to gens was G15S2, not 14.)

I've just finished chapter 4. The AP and stats are still there, nothing was changed.

Not the Theatre Missions? They're still Int/Adv, and what about the EXP for those?