Now that postgame content was added, the rules around 100% (mainly "Time ends after killing The One Who Waits") are out of date.

The guide about 100% is also out of date but that's less important.

Any mods wanna fix the rules to give a better idea of how to go about 100% speedrunning CotL.

I was 8 hours into a Extra Hard speedrun when I realized I had no clue how to get everything and had to drop the run 💀💀💀

Yeah I had the same thing happen. I updated the game for 100% NMG and I was going to do a run when I realized new stuff was added and I was not sure how to complete the game 100% anymore.

We have had a discussion about this in Discord. Since downpatching is possible, it might make sense to make a new category for new content or a new 100% and renaming the older to something like legacy 100% etc.