While the Ultimatum League for Path of Exile is still two days away from arriving to PC players, the folks at Grinding Gear Games have very helpfully allowed fans to pass those two days by reading some exhaustive patch notes and filing through passive tree and item changes. How thoughtful.
In true GGG fashion, the Ultimatum patch notes are extremely detailed, providing information on the titular Challenge League, content features, Atlas map changes, and a long list of balance adjustments. On the subject of balance adjustments, there’s also a separate post that shares item filter information, new item details, and JSON data for passive tree adjustments available for download in order to help players prepare their builds. As for map tiers, those are unchanged from Ritual, which is kind of like taking off about four pages from reading War and Peace but is likely good to know regardless.