Warframe Hotfix 44.1.3 Notes: Riven Dispositions Removed, Ammo Efficiency Capped at 75%

Digital Extremes has made one of the biggest balance calls in Warframe's recent history, and it didn't even need a full update. Hotfix 44.1.3, released on October 22, 2026, retires the Riven Disposition system that has shaped Riven prices since 2016, caps Ammo Efficiency at 75% and stops "explode on death" mods from chaining endlessly. A smaller follow-up, Hotfix 44.1.4 (plus 44.1.4.1), landed on October 28 with quality-of-life tweaks and fixes.

TL;DR

• Riven Dispositions are gone. Every Riven now uses the same stat multiplier, equal to the old 1.2 disposition.
• Riven trading is back after a short lock ahead of the hotfix.
• Ammo Efficiency is capped at 75% from all sources combined, so one in four shots still uses ammo.
• Effects that truly give Infinite Ammo, such as Void Relic cracking buffs, are untouched.
• Acid Shells and six other death-explosion effects can no longer retrigger themselves through Elemental Ammo, and Acid Shells' radius drops from 15m to 10m.
• Compensation: everyone who logs in before December 31, 2026 gets 2 Built Forma and 100,000 Kuva. Early Riven Splicer users also get 1 Riven Splicer and another 100,000 Kuva.

Riven Dispositions: one number for every weapon

Dispositions were hidden multipliers, shown as one to five dots, that decided how strong a Riven could roll on a given weapon. Popular weapons sat as low as 0.5, while neglected ones went as high as 1.55. The idea was to push players toward weaker weapons. Digital Extremes now admits it didn't work out that way: players still poured their investment into the strongest weapons, and Incarnon upgrades did a better job of reviving old gear. Stack both systems and the power gap only grew.

So the studio flattened everything. All Rivens now roll with the same range as an old 1.2 disposition. Your existing Rivens keep their stats, but the numbers on them change to fit the new scale.

The biggest winners are popular, powerful weapons that used to have the lowest dispositions, while the old niche favorites lose ground:

Rivens for those low-disposition weapons can now roll more than twice as high as before, while the old high-disposition picks lose roughly a fifth of their range. A handful of weapons, such as the Hek and Lex Prime, are listed with no change. If you buy or sell Rivens, check the current stats rather than trusting older listings, because prices set under the old system no longer reflect what a Riven actually does.

Trading, which was briefly switched off before the hotfix, is enabled again.

Ammo Efficiency capped at 75%

Riven Splicing, added in Update 44.1.0, made Ammo Efficiency traits much easier to get on Rivens. That turned infinite-ammo builds from an occasional treat into something close to guaranteed. Digital Extremes says it still wants endless shooting to be possible, just not all the time.

The new rule: Ammo Efficiency from all sources stops at 75%. That covers every piece of gear that uses ammo, including Necramechs and Amps. Effects designed to give unlimited ammo are now described as Infinite Ammo and keep working. These include Void Relic cracking buffs, Magnus Prime and Akmagnus Prime's Chamber Cascade, the Knell's Death Knell and the Vasto Incarnon's Reaper's Plenty.

Several individual sources were adjusted to fit:

Lyon's Flowing Slayer blessing in The Descendia was also brought down to +75%, and a bug that stopped it from applying properly in missions was fixed.

Acid Shells and the end of chain explosions

The Sobek's Acid Shells augment makes enemies explode on death. Combined with Elemental Ammo effects, most often from Cyte-09, those explosions could keep retriggering as long as there were enemies around. Digital Extremes says it had tolerated the build until Arbitrations, the ammo debate and the Taubound event made it far more common.

Elemental Ammo can no longer retrigger death explosions on Acid Shells, Amalgam Furax Body Count, Vulcan Blitz, Explosive Demise, Combustion Beam, Thermagnetic Shells and Entropy Detonation. These mods still benefit from Elemental Ammo's extra damage and status. On top of that, Acid Shells' explosion radius shrinks from 15 to 10 meters.

Compensation

Because the hotfix touches so many builds, everyone who logs in after it, until December 31, 2026 at 11:59 p.m. ET, receives 2 Built Forma and 100,000 Kuva in an "Arsenal Retuning" inbox message. Players who had already installed a Riven Splicer on a Riven before the hotfix get a second message with 1 Riven Splicer and 100,000 Kuva.

Other changes in 44.1.3 and 44.1.4

• A new Axi C13 Relic was added to fix the Braton Prime Receiver being vaulted by accident.
• The Viper's Skull Shots augment can now retrigger while its buff is active.
• Nami Skyla Prime Blade's Ducat value drops from 100 to 65.
• Nine Dojo rooms, such as the Ostron Cove and Starlight Market, can now be set as spawn rooms.
• Credit bundles, including the ones Praghasa sells, can now be bought in bulk.
• Hotfix 44.1.4.1 removed the Dismantle Demolishers modifier from Cavia bounties after it left Rogue Necramechs permanently invulnerable.

Bug fixes worth knowing

• Players who haven't unlocked Eris can now see and play the Epoch Operation: Taubound alerts.
• The Icebind Mobile Defense missions no longer fail to extract on a specific Grineer Asteroid tile.
• Amanata Pressure now applies to Heavy Slam Attacks and hits more than one enemy per Heavy Attack.
• Incarnon reticles no longer turn blue before the transformation is complete.
• A small number of players who never got the Vessel quest key after the Lua quest should now find it in their inventory.
• A rare case of Nidus' Parasitic Vitality killing Nidus or crashing the game is fixed.

What it means for players

Removing dispositions is a long-requested simplification. You no longer have to worry that a balance pass will quietly shrink your favorite Riven, and Rivens for new weapons are useful from day one. The downside is obvious: the strongest weapons just got stronger Rivens, so the meta is likely to narrow rather than widen.

The ammo cap and the Acid Shells fix hurt more if you leaned on Cyte-09 or a spliced infinite-ammo build, but true Infinite Ammo effects still exist, and the free Forma and Kuva soften the blow for re-tuning. You still have until November 17 to collect Moonflesh in Epoch Operation: Taubound, which won't be rerun. Digital Extremes covered the road to Tau in Devstream 198 on October 30.