New items affecting old APs. (obviously spoilers).

[Ixal]

Have you noticed if any items, abilities, races, etc. published in recent books have the potential to affect older APs by making them more easy or even derail them completely?

Things I can think of.

Dead Sun:

The famous fungal storm and the whole treck depends on managing the environmental seals as at that level they can't cover the whole trip.
Enter the collars from AA3. Intended for animal companions you get for little money an environmental seal which lasts for weeks and can be recharged by battery.

Against the Aeon Throne 3:

The group is supposed to use the rune drive to repair and upgrade their ship after it got destroyed while being landed.
But if the ship has a VI it would not be a sitting duck and would at least try to evade instead of being destroyed in a place the PCs can reach it.
A cloaking device would even be more problematic as it would mean the ship would not be destroyed (but because of the good sensors of the enemy a cloaking device of this grade would be out of reach for the PCs

Signal of Screams 2:

Not sure about that one, I have to reread the exact scenario, but the spell that lets you locate someone on a planet might be a massive shortcut.

[John Mangrum]

Yeah, as published know coordinates is a straight-up adventure killer. I've house-ruled it to be a 3rd-level spell in my home game, which puts its on par with its Pathfinder rough equivalent, locate creature.

[Alangriffith]

There was a discussion on the rules forum about the Biohacker class completely invalidating large chunks of Threefold Conspiracy if a biohacker PC uses the Identify creature feature (even if a disguise check can oppose, which is disputed, the biohacker usually beats it with their automatic nat 20).

I’ve not played/read the scenarios myself so can’t say if it does for definite, certainly a level 1 biohacker sees through the CR1 reptoid disguise check in Alien Archive (the gray in alien archive doesn’t have a disguise power/skill at all).

[John Mangrum]

(I have a house rule to deal with the biohacker's identify feature, too; sesrch my semi-recent posts for it.)