Hollow Knight 1.5.12620 Patch: Fixes and Language Support
Read Team Cherry's Hollow Knight 1.5.12620 changes to Traditional Chinese, Radiance, Journal notifications, audio, and performance.

In this guide
Team Cherry's Hollow Knight patch 1.5.12620 adds Traditional Chinese translation and fixes a set of audio, interface, combat and journal issues. The announcement is a maintenance note, not a new story chapter or a change to the game's price. If you saw an odd interaction with Radiance, overcharmed notches or the Hunter's Journal, this is the official list to check against your installed version. Do not assume a symptom in an older save has the same cause after the patch; update the game and recheck it first.
Language, sound and interface
The most visible addition is Traditional Chinese localization. Team Cherry also says inventory navigation audio had been too quiet and has been corrected. Text alignment was adjusted for actions bound to a wide square key, such as Shift or Space, to stop labels overlapping. Those changes are small individually but matter to players using a custom keyboard layout or navigating by sound cues. If an interface still looks wrong, check that Steam finished the update and confirm which input binding the problem affects.
Combat and progression fixes
The patch corrects a case where overcharmed notches were unintentionally removed. It also shortens a lingering hitbox from Radiance's orb attack when an orb expires in the air. That fix is specific: it does not say Radiance's entire encounter is easier or that every projectile has changed. Team Cherry also lists fixes for Mawlurks being pushed by Infected Balloons, Mantis Traitors taking damage underground, Heavy Fool's dash sometimes falling short and Baldur Shell remaining active longer than intended. These are targeted behavior corrections, not a new balance system.
For collection-oriented players, the Hunter's Journal notification icon could be absent or show the wrong icon, and the “New Journal Entry” pop-up sometimes failed. The update addresses those display issues as well as some Hunter's note kill counts not being awarded as intended. A corrected notification should make progress easier to read; it does not mean an unfinished Journal automatically becomes complete. Review the current entry after updating if you were tracking a particular enemy.
What to do after updating
Steam should deliver the patch through the normal game update. If you use mods or unusual bindings, note your version and check compatibility before assuming a modded installation matches the official patch notes. Team Cherry also mentions general performance improvements and small fixes, but gives no hardware-specific frame-rate target. YouxiSky has not measured performance on a PC. The core Hollow Knight page explains the game's exploration and combat loop; Silksong is a separate game, not this patch.
Common questions
Does this patch add new bosses or areas?
The official 1.5.12620 note lists translation, bug fixes and performance improvements. It does not announce a new area, story quest or boss. Hollow Knight has other named content additions, but they should not be confused with this maintenance version.
Was Radiance redesigned?
No redesign is stated. Team Cherry identifies one specific issue: an orb attack hitbox could linger a little longer than intended when the orb expired in the air. That fix is worth knowing if the encounter felt inconsistent, but it is not a promise that the fight will be trivial.
Source: Team Cherry's official patch 1.5.12620 note on Steam, published March 27, 2026. The article explains the listed changes without claiming an independent play test.