Borderlands 4’s Biggest Boss-Melting Build Is About to Get Nerfed in Next Update

The infamous crit knife build for Vex is finally getting cut down to size. Gearbox is rolling out a new Borderlands 4 patch early next week, targeting the overpowered crit knife setup that’s been dominating the game since launch.

This balance change isn’t coming alone. The update lands as the Horrors of Kairos event kicks off, injecting the chaotic world of Borderlands 4 with new content, rewards, and a seasonal flair. If you’ve been carving up late-game bosses with ease, brace yourself as this patch might mean you’ll have to find a new trick.

What’s Changing in the Borderlands 4 Patch?

The crit knife build for Vex has been the stuff of legend (and plenty of debate) among the community since Borderlands 4 hit shelves in September. Speedrunners and power players have been using it to shred through every major encounter, making short work of content that’s supposed to offer a challenge.

Gearbox’s “Day 30 Update” had originally been scheduled for last Thursday, but saw a slight delay. Now it’s dropping alongside the big Halloween-inspired event, packing in not just the crit knife changes, but quality-of-life features and much-needed performance/stability fixes. The studio has kept up a steady pace for these updates since launch, and this one’s no exception.

Exactly how hard the crit knife nerf will hit remains to be seen. Gearbox hasn’t published the full patch breakdown at the time of writing. But if you’re a mainstay of the build, you’ll want to get your last licks in before the patch lands.

Horrors of Kairos Event: What’s Coming and When?

The Horrors of Kairos is Borderlands 4’s next big event, and it’s dropping tomorrow. It’s 100% free, and it promises new legendary weapons worth hunting, a seasonal weather variant that’ll change up the look and feel of the game, and a pumpkin head cosmetic for vault hunters who want to show some spirit.

The event runs until November 6, so you’ve got a solid window to dive in and scoop up whatever you can. Don’t sleep on those seasonal rewards; once this haunted celebration wraps up, who knows when, or if, these cosmetics will return.

Borderlands 4 isn’t slowing down after Horrors of Kairos ends, either. Bounty Pack 1 is slated for November, bringing a new mission, a fresh boss fight, and another bundle of cosmetics to chase. That’s followed by an endgame boss, the Bloomreaper, along with even more legendary loot before 2025 closes out.

What’s Next: New Vault Hunters and Content Roadmap

If the steady drip of balance patches and events has you wondering about long-term support, know this: Borderlands 4 is here for the long haul. The first major paid expansion, codenamed C4SH, is coming in Q1 2026. Expect a new playable vault hunter (the fifth), brand-new map areas, more side missions, and a pile of extras still under wraps.

Whether you’re here for the loot, the builds, or just to see what chaos comes next, Borderlands 4 is looking packed with content for months, if not years, ahead. With a strict no-fluff approach to updates, Gearbox is clearly listening and responding quickly to community feedback, giving every kind of player a reason to stay invested.

Keep your knives sharp, but don’t get too attached. Borderlands 4’s wildest build is about to get balanced. And in true fashion, there’s always something new right around the corner.