Content Update 3.17.0 -- Path of Exile: Siege of the Atlas

Navali no longer appears in the game. The Faun fight is still present in The Climb.
Silver Coins can no longer drop. Existing Silver Coins and itemised Prophecies will be deleted from your inventory and stash the next time you log in after the launch of 3.17.0.
The following Fated Unique items will no longer be obtainable outside of trading with other players in permanent leagues: Corona Solaris, Crystal Vault, Deidbellow, Dreadsurge, Ezomyte Hold, Fox's Fortune, Greedtrap, Hrimnor's Dirge, Kaltensoul, Karui Charge, Martyr's Crown, Mirebough, Ngamahu Tiki, Panquetzaliztli, Realm Ender, Sanguine Gambol, Shavronne's Gambit, Silverbough, Sunspite, The Effigon, The Gryphon, The Oak, Voidheart, and Wall of Brambles.
In a few cases, the Fated version of a Unique item felt worth keeping in the game but there was little value in having the Fated and base versions of the Unique item be separate. In these cases, the Fated Unique item has been disabled, but the base Unique item has been modified to be identical or similar to the old Fated version:
Bloodboil has been renamed to Winterweave. It no longer has "75% reduced Effect of Chill on you". It now has "Adds 12-15 to 25-30 Cold Damage to Attacks" and "The Effect of Chill on you is reversed". It also now provides 25-30% Cold Resistance (previously 10-15%). Existing items are unaffected by these changes. The old, fated version of Winterweave can no longer be acquired.
Chalice of Horrors no longer has "Curse Skills have 100% increased Skill Effect Duration". It now has "1% of Damage Leeched as Life against Cursed Enemies". Existing items are unaffected by these changes. Thirst for Horrors can no longer be acquired.
Craghead now has "140-200% increased Stun Duration on Enemies" (previously 60-80%). Existing items can be updated to these new values with a Divine Orb. Cragfall can no longer be acquired.
Geofri's Crest now has "+1 to maximum number of Summoned Holy Relics" and "Summoned Holy Relics have 20-25% reduced Cooldown Recovery Rate". Existing items are unaffected by this change. Geofri's Legacy can no longer be acquired.
Iron Heart has been renamed to The Iron Fortress. It no longer has "8-12% Chance to Block Attack Damage" or "Cannot Block Spells". It now has "+1% Chance to Block Attack Damage per 50 Strength", "Chance to Block Spell Damage is Unlucky", and "+60-120 to Strength". Existing items are unaffected by these changes. The old, fated version of The Iron Fortress can no longer be acquired.
The skill granted by The Dancing Dervish is now called "Manifest Dancing Dervishes" and manifests two copies of the Sword. Existing versions of The Dancing Duo are affected by this change, and no longer have "Manifest Dancing Dervish also manifests a copy of Dancing Dervish". The Dancing Duo can no longer be acquired. The Dancing Dervish has further changes unrelated to The Dancing Duo's removal, which are detailed in the Unique Item Balance section.
Timeclasp no longer has "Temporal Chains has 50% reduced Effect on you". It now has "Unaffected by Temporal Chains" and "-10-10% increased Skill Effect Duration". It now also provides +40-45 to maximum Energy Shield (previously +15-25). Existing items are unaffected by these changes. Timetwist can no longer be acquired.
Atziri's Reflection is no longer considered a Fated Unique item, and is now a rare drop from Atziri, Queen of the Vaal in The Alluring Abyss. Atziri's Mirror can no longer be acquired.
Fated Unique Items not mentioned above now have a chance to drop from any endgame map boss. This is a temporary measure to maintain their availability. They will be moved to a new acquisition system in a future expansion.
Unique Items previously obtained by completing Prophecy chains have been added to the core drop pool.
The Pale Council fight is no longer accessible and its previously-exclusive Unique Items have been added to the core drop pool. Existing Pale Council Fragments will be deleted from your inventory and stash the next time you log in after the launch of 3.17.0.
The Ruler of the Court Achievement is now obtained after completing The Vinktar Square (previously from defeating The Pale Council).
Stored crafts that change a Pale Court Key into another random Pale Court Key have been removed from Horticrafting Stations.
Prophecy Item rewards are no longer obtainable from other League content. Existing Prophecy rewards types on Heist Blueprints and Itemised Metamorph Samples have been converted to Currency rewards.
Perception Heist Contracts and Blueprints can now spawn generic reward chest rooms at the same rate at which they used to spawn Prophecy reward chest rooms.
Leo's Betrayal Transportation Safehouse rewards are now Catalysts, and his Intervention rewards are now Metamorph Scarabs, with Torment Scarabs now being Aislings reward.
Existing Portentous Delirium Orbs will be converted to Fine Delirium Orbs.
Lilly Roth now invites herself to your hideout once you complete the Fallen from Grace quest in Act 6. In addition to accessing her Gem shop and selling items to her, you can now turn in Divination Cards to her in your Hideout. If you've already completed Fallen from Grace in a permanent league, you will need to talk to Lilly again in Lioneye's Watch to unlock her in your Hideout.