Meta Horizon v213 Release Notes

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Thank you for your patience v213 is now live. 

This week in v213, we are launching Horizon Worlds Thumbnail A/B testing, giving creators valuable data-driven insights to help grow their worlds. Additionally, a new In-World Shop Gizmo is now available for creators, adding depth to world gameplay and offering players more reasons to return (MHCP Only). Our first wave of Mobile Perf Tooling capabilities have also been released, providing creators with the tools they need to optimize their world's performance. Furthermore, we've made numerous quality of life improvements, including optimizations that allow for the creation of larger worlds by reducing mesh type assets world capacity impact. Finally, we've addressed several community-requested bug fixes, such as resolving desktop editor hang-ups when adding or removing assets.

Read on for more details on Meta Horizon v213:

 

Read on for more details on Meta Horizon v213:

New Features

• Horizon Worlds Thumbnail A/B Testing: The Creative A/B testing tool is now available for all creators! A/B testing helps you get more visitors to your world and increases engagement by publishing two versions of your world thumbnail image and comparing which image drives more visits. You are able to choose the images, the duration of the test and at the end, the tool will recommend which creative you should use moving forward to best engage your audience. Review the documentation and how to use this new tool here. 
•  In-World Shop Gizmo: We’re releasing a new gizmo to make it easy for creators to add a shop to their world. This enables world creators to add in-game shops where players can acquire in-game items in exchange for in-world currency or Meta Credits. Use this gizmo to add depth to your gameplay and offer players more reasons to come back to your world. Review the documentation and how to use this new tool here. (MHCP ONLY) 
• Introducing Performance tools for Mobile. 

• Real-time Metrics: View live FPS and CPU time metrics to monitor your content's performance in real-time.
• Performance Tracing: Take detailed traces of your content's performance to identify bottlenecks and areas for improvement.
• 150 new library assets which can be found in Food, Horror, Plants, Vehicles, Weapons, and Structures.

 

Quality of Life Improvements

• Mesh type assets now only count towards the world entity limit, reducing object capacity impact, allowing creators to create much larger worlds.
•  Improved LOD mesh debug visualization for creators.
• Added a prompt for creators to enable the horizon/ui script module when first creating UI scripts.
• Creators can now detect when a player begins and ends focused interactions with CustomUI, Leaderboard, and Debug Console gizmos. Adds firing the CodeBlockEvents.OnPlayerEnteredFocusedInteraction and CodeBlockEvents.OnPlayerExitedFocusedInteraction events when users interact with the Creator Debug Console and Custom UI gizmos.
•  Using multiselect to upload LOD files now uploads them in ascending order by default.
•  Moved disk writes to worker thread, reducing main thread blockage and increasing overall performance.
• Starting May 6, 2025, creators are required to identify the intended audience as an additional step when publishing or republishing their worlds. This new step does not impact a world’s content rating and will help us understand who the world is designed for.  
•  Ability for creators to create worlds with a player cap of 1 (MHCP only). 
•  You can now select multiple entities in the Desktop Editor and edit shared properties (like position, rotation, and scale) all at once via the updated properties panel.  Bringing it in line with the functionality already available in the VR Editor.
• Improved SoundFX and Ambient Audio Generation tooling with 10% faster output as well as enhanced sound quality which you can integrate into the experiences you are building. Learn more about the GenAI Audio tool here.
• Creators can now search and attach scripts directly from the properties panel. You can also create and attach new scripts from templates that work out of the box for common use cases such as trigger zones and Custom UI.

 

Bug Fixes

• Fixed a bug where replacing or adding assets would hang for up to an hour before timing out.
• Fixed a bug where the In-World Purchase creation flow was broken while an image was imported.

• Fixed a bug where Meta credit balance in product description page would not update after completing a purchase.
• Fixed a bug where an “open in browser” dialog box would appear in the desktop editor when trying to open any link, which should only appear when in MR.
• Fixed a bug in Gen AI tools where 3D Model generation would sometimes hang indefinitely until the editor was restarted.
• Fixed a bug where Mobile and Web users were unable to hear other player audio when prewarming/joining a world.
•  - Fixed a bug when creating an asset and then trying to update it would lead to an infinite update loop in certain cases.

 

Upcoming Release Roadmap: We've heard your feedback and we're working on shipping the following improvements in the next few releases.

• World load time reductions.
• Animation imports directly into the editor which converts to Horizon Unity Runtime.
• Texture size reductions for improved editor performance.