This is automatic translation (from Korean) of 26.4.2021 update notice for Korean server (we will probably get same at our next maintenance):
 

Good morning. This is Cal Online.
The following is the update on April 27 (Tue).
 

1) Added NPC in the lawless zone of the dead

-Magical manager NPC has been added to the lawless zone of the dead.

 

2) Add heirloom list

-The swordsmith equipment has been added to the heirloom list.

 

3) Adjusted the drop rate of warhorse equipment

-The drop rate of the warhorse chest has been reduced.

 

4) Adjust the number of monsters on the 11th to 12th floors of the Infinite Tower

-The number of monsters on the 11th to 12th floors of the Infinite Tower increases.

 

5) Amcheonjige store update

-For more information, please refer to the event page - http://gameagit.com/kalonline/2104skybox