hotfix · September 21, 2026
Kernel Hearts Hotfix v1.0.11 Fixes Infinite Invulnerability Exploits and Co-op Progression
Kernel Hearts update v1.0.11 fixes critical multiplayer progression blocks, chip duplication bugs, and unintended boss execution mechanics while outlining upcoming quality-of-life additions for October.
Kernel Hearts receives a new hotfix on Steam that resolves several high-priority progression blockers and combat exploits. Version v1.0.11 addresses bugs with multiplayer staircases, broken invulnerability loops, and soft-locks tied to newly unlocked characters. Alongside the immediate bug fixes, the developers released an October roadmap outlining upcoming features such as multiple save slots, expanded keybindings, and a training mode.
Progression and Co-Op Fixes
Both hosts and clients can now access the Exit Staircase in Judecca – Golden Labyrinth to advance properly to the next level. Multiplayer sessions no longer get stuck on the message reading 'Some players are still reading' following bond cutscenes. In Sky Citadel, players now launch high enough to reach lower platforms, and entering portals in Twisted Halls no longer traps character animations.
Combat Balance and Exploit Patches
Several unintended combat interactions are removed in this update. Executioner's Charge no longer executes bosses. Higanbana no longer gets stuck after use to grant infinite invulnerability, and Laika's Moon Lander no longer provides invincibility frames for the duration of its entire animation. Divine Blade receives improved hit detection to ensure it hits all enemies inside its radius.
Inventory and Character Bugs
A bug that caused equipped chips to duplicate and prevent players from equipping or removing chips is fixed. Interacting with Spika, Laika, or Dolce during the same session in which they are unlocked as playable characters no longer causes the game to become unresponsive. Additionally, Laika gains two new spell upgrades for later level-ups: Weight of Sin III and Red Threads III.
Upcoming October Roadmap
The developers detailed upcoming features scheduled for October. Planned additions include an improved and replayable tutorial, expanded keybinding options, per-character chip loadouts, multiple save slots, training mode, and level-up reward rerolls alongside English voice-over support.
Why this patch matters
Hotfix v1.0.11 seals major exploits like infinite invulnerability while clearing up essential co-op progression blocks, setting a stable stage for the upcoming October features.