Grinding Gear Games announced today that Path of Exile's latest expansion, Atlas of Worlds, is live. The expansion is considered to add "a fresh end-game, a multitude of new areas, boss fights, item types, a fully new Challenge POE Orbs PS4 League, a totally revamped end-game, and even more!" There are 30 new maps for more information on and 19 new bosses to consider down.
The expansion can also include support for multithreading, that's expected to improve performance significantly for many users.
You can find details about the development here or check out the complete set of patch notes here.