This is automatic translation (from Korean) of 9.8.2021 update notice for Korean server (we will probably get same at our next maintenance):
 

The following is Korean server update for August 10 (Tue).

 

1) Fix profanity filtering

- Some words have been excluded from profanity filtering.

 

2) Remove cool summer event items

- All cool summer event items will be removed. (Swimsuit, buff items, watermelon, etc.)

 

3) Ancient Artifact Shop Update

http://gameagit.com/kalonline/2108item