Recently, an update for Silksong was released, and now Team Cherry has released patch 1.5.12620 for Hollow Knight.
The developers have fixed several technical issues. For example, the low sound volume when navigating the inventory, and also eliminated text overlapping that occurred when assigning actions to certain keys.
Bug fixes related to various enemies, including the boss Radiance, have also been made.
Until recently, one of Radiance's attacks did not work as the developers intended:
Fixed a bug where the hitbox of Radiance's Spheres remained active slightly longer than intended if the Sphere disappeared in the air.
The full description of update 1.5.12620 for Hollow Knight is available at the following link.