Warframe Hotfix Today: Sister of Parvos Patch Notes & Server Status – July 17, 2026

Logging into Warframe this morning felt a bit like stepping into a Relay during TennoCon—exciting, but you never know if you'll get kicked to the login screen. Today, July 17, 2026, marks the beginning of TennoCon 2026, and as always, Digital Extremes has dropped a fresh hotfix just in time for the festivities. I've been diving into the Sister of Parvos content for a while now, and this patch addresses a heap of lingering bugs, rebalances some controversial weapon changes, and even sorts out friend list priorities. The servers took a hit right when the TennoCon stream started, but things are stable again—so let's get into the nitty‑gritty of today's update.

Before I go any further, I have to mention that this morning's TennoCon stream just unveiled the next major expansion, The New War: Resurgence. The hype is real, and while I'd love to talk about it, the servers understandably buckled under the surge of Tenno. For about half an hour, I couldn't log in, and my clan chat was full of “warframe server down” panic. Digital Extremes confirmed the issue was due to high traffic, and they've since brought the servers back online. A quick restart fixed it for me, and now matchmaking feels smooth. If you’re still stuck, try a full log‑out and log‑in cycle; that cleared the issue for most of my squad.

Today's hotfix is version 2.01, available on PC, PlayStation 5, Xbox Series X|S, and Nintendo Switch. It's a direct follow‑up to the Sister‑of‑Parvos revival event, which reintroduced the Kuva Liches and Sisters with a few new tweaks. The highlight for many players—myself included—are the weapon adjustments. Not long ago, an unintended melee follow‑through nerf slipped into the live build, and it made certain playstyles feel sluggish. The devs just reverted that change. I could immediately feel the difference with my Kronen Prime; the flow is back. The Tenet Tetra's alt fire now has a 60% fall‑off on its area of effect, which balances its room‑clearing potential without making it useless. Also, the Kuva Grattler Arch‑Gun finally has its stats normalized with the Heavy Weapon variant: impact damage dropped from 100 to 50, and AoE damage from 205 to 155. The Arsenal now shows those numbers correctly. One thing that annoyed me—the Tenet Agendus projectile no longer gets a headshot damage bonus, which makes its build options clearer. No more guessing whether it counts as a headshot.

Beyond weapons, the patch tosses in a bunch of quality‑of‑life improvements. My favourite? Favourited friends now jump to the top of the invite screen. As someone who runs daily sorties with a tight group, I no longer have to scroll through dozens of offline allies. Yareli’s Sea Snares tooltip also got polished, now showing the increase to five water globules—little details that help new Merulina riders.

Now, the fix list is long, so I’ll break down the ones that matter most:

🔧 Login & Progression fixes

• Accounts that had multiple vendor purchases with cooldowns expiring at the same login can now log in without error. I’d been locked out twice before this patch, so I'm relieved.

• Hounds now grant 200 Mastery per level instead of just 100, finally matching other companions.

• Traded (Converted) Sisters now correctly start at the expected Star Chart node, which means no more lost lich progress.

🛠️ Gameplay & Mission fixes

• If a host migration happened at the start of a Sister showdown Railjack mission, Specters and Hounds would become invincible—fixed.

• The “Eliminate the Target” objective now updates instantly after you Vanquish or Convert a Kuva Lich; you don’t need to kill a Thrall afterward.

• Headshots bleeding over from Shield to Health no longer deal double damage. This one was a stealthy nerf to certain high‑crit setups, but it’s more consistent now.

• Grineer Arc Traps actually damage Yareli while she’s on Merulina; some people hated this, but I think it makes the frame feel less invincible.

🎨 Cosmetic & UI fixes

• Duplicate Sister Ephemeras no longer clutter your inventory. I had four Vengeful Toxin Ephemeras clogging my list before, and now they’re finally sellable.

• Hexis Left Arm Plate aligns properly on Gara Prime. Fashion frame is endgame, people!

• Legendary Rank 1 players were showing as MR31 in the “Available Sessions” window and trade screen—that’s been corrected.

• Certain Glyphs not tinting with player UI themes have been fixed, so my Squad icon finally matches my chosen colours.

🚀 Railjack & Companion Fixes

• Crew members no longer play erroneous transmissions. The constant “We’re under attack!” spam was driving me nuts.

• Friendly AI can now use the Tenet Envoy, which makes your crewmates actually useful with launcher weapons.

• Venari’s healing works properly again, and the Falcor quick throw no longer loses velocity when hitting something.

• K‑Drive races can be started while Merulina is active; Yareli players can rejoice.

Several script errors got squashed too. Khora’s Venari ability and the Archwing Slingshot won’t randomly crash your game anymore. The Foundry also won’t try to start or claim jobs twice when you press the button just once—a tiny fix that saves precious resources.

I have to point out a specific fix for Yareli: Primed Sure Footed now prevents her from getting knocked off Merulina. That single change makes the frame ten times more playable in high‑level content. Before this hotfix, any stray knockdown sent me flying into a wall; now I can finally enjoy surfing through Steel Path without fearing a random Scorpion’s hook.

All in all, this hotfix feels like a solid housekeeping pass. It doesn't introduce brand‑new content, but it smooths out dozens of rough edges that had been irritating the community. With TennoCon 2026 now in full swing, I’m eager to see what The New War: Resurgence brings, but until then I’ll be testing these changes in the Veil Proxima. The server wobbles were a small price to pay for an otherwise stable launch day. If you’re jumping back in, restart your client and enjoy a much cleaner Origin System. See you out there, Tenno.

Industry analysis is available through Newzoo, and it helps frame why Warframe’s TennoCon-day stability and rapid hotfix cadence matter beyond just moment-to-moment gameplay. When Digital Extremes pushes a bug-squashing update like Hotfix 2.01 alongside a major reveal, it’s not only about restoring melee feel or cleaning up Sister progression—it's also about keeping player engagement high during peak attention windows, where login friction and matchmaking hiccups can quickly translate into churn.