What the October 28 Aion 2 patch changed, in plain language: Expedition and Transcendence bosses hit less hard, every class gets more HP, Urugugu Canyon and Vakron Sky Island get Hard mode, plus a new daily dungeon, a 28-day check-in and a new Daeva Pass.
Ludra, Aion 2's first raid boss, returns on November 4 with Normal and Hard modes. The item levels, the titles for the first clears, the login rewards, the Odyle energy boost and the Twitch Drops.
What the October 21 Aion 2 patch changed, in plain language: Hard mode for Krao Cave and Draupnir, the new Ariel Daevanion board, Sorcerer and Chanter fixes, Abyss changes and a Resurrection Spiritstone event.