Hey Creators,

On July 23 PDT, MapleStory Worlds will undergo maintenance so that patch v1.25.0 can be deployed.

We would like to inform you in advance about the major changes in the patch, and the platform and World impact that may occur after the maintenance.

In this patch, there are changes to avatar product production, and changes to World Play Ability Criteria, which we announced near the end of June 2025.

Please take a moment to review the information below. We hope this will minimize the impact that may occur to the content you are developing and operating.

Key Updates Following the July 23 Update

Changes related to avatar product creation sheet

Fixing an issue where the gray layer (data:origin) could be arbitrarily modified and registered in the avatar creation sheet.
- Even if you modify the data:origin in Adobe Photoshop, it will automatically be applied as a fixed data:origin value when registering your avatar.
- Avatar product creators, please check the changes in advance so that your items can be produced smoothly.

Changes to World Playability Criteria

As we provide the player's AccountRegion information, the conditions for determining whether the player is eligible to play the World will change.
- (Current) Based on the player's account registration region → (Updated) Based on the player's access region
- After the change, when a player attempts to access a World, the system will verify whether the region from which the player is currently accessing the World matches the region where the World is officially supported. World access will be determined based on this match.

⚠️ Due to this change, preparation may be necessary if you would like to restrict access for players from certain regions.
- For more details, please check the advance notice linked here: [Notice] Upcoming World Play Availability Criteria Change

Changes related to StructType, BTNode, EventType, ItemType, StateType

StructType, BTNode, EventType, ItemType, StateType have been updated to allow for the ClientOnly, ServerOnly execution space setting tags.

Fixing an issue where StructType would only work in certain situations when ServerOnly or ClientOnly was applied.
- Currently problems may occur if you apply ServerOnly or ClientOnly to the StructType method through a means not officially supported by the Maker.

We will provide additional updates if any adjustments are made to the above information. Please refer to the upcoming patch notes for more details, thank you.

Sincerely,

The MapleStory Worlds Team