Patch notes are live.
Basically we're murdering architects and poor workers in the past so that we can get better loot in the future lol.
Some new vaal skills. Lots of new traps.
Lots of rebalance of gems.
Some things that stood out to me:
Added 39 new Labyrinth Enchantments for existing skills, and 43 for new skills. Even harder to get the enchantment you want without trading.
World and Map areas can now have multiple sub-areas. This means you can now, for example, find a Zana mission in the same map as a Labyrinth trial, Abyssal Depths, or an Elder Guardian.
The 5-for-1 magic or rare vendor recipe no longer maintains Shaper/Elder item status.
Added a new feature - Always Attack Without Moving
Once you have completed 20 maps while the Elder and its guardians are on your atlas without actually defeating any of them, there is a chance for the Elder and its guardians to disappear and remove the Elder-influence from the maps they were on. This will make it difficult to maintain an "Elder Ring", but will also allow players who weren't capable of defeating the Elder or its guardians to clear them from their atlas.
Shaper memory fragments XI through to XV no longer require you to defeat the Elder or its guardians in specific map tiers. Instead, defeating each guardian and the elder within ANY red-tier map will get you one of these fragments.
Breach back for Zana 8 but Breach drops from normal and magic monsters are now nerfed.