---
title: "1.40"
canonical: "https://documentation.chaos.com/space/ARENA/218333253/1.40"
format: markdown
---
## **Build 1.40.02**

*Official Release*

Date - Dec 04, 2025

## **Fixes**

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### Rendering

- Projection parts are sometimes misaligned relative to each other after transformations

### Server

- "Align Animation to Scene FPS" option doesn't work properly when the scene frame rate doesn't match the rendering frame rate

### Operators

- Broken stage geometry updates from Operators after creating a camera
- Operator hangs in the Materials tab on multi-GPU machines
- Stage geometry pivot point always at the scene origin when it's attached to a camera
- Hanging object selection issues after changing the stage position

### Tracking

- OpenTrackIO plugin doesn't work with large JSON packets

### UX

- Escape key enables part of the UI in full-screen mode on render nodes


## **Build 1.40.00**

*Official Release*

Date - Oct 28, 2025

## **New Features**

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### Rendering

- Depth of Field support

### Server

- Mo-Sys F4 camera tracking protocol support
- Built-in camera tracking movements
- Replay of pre-recorded Alembic camera tracking movements

### Operators

- Ability to assign existing materials to objects in the scene

### UX

- Option to deactivate render nodes
- Show Spawner status in the Render statistics

## **Modified**

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### Core

- Upgrade to Vantage 3.0

### Performance

- Improved multi-GPU performance

### UI

- Rename the "Quadro Sync" option to "Present Barrier"

## **Fixes**

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### Live Link

- USD scenes are not updated correctly through live-link
- Crash of the Arena Renderer when rotating animated scene geometry with specific scenes

### Server

- Stopping rendering mid-load and then starting causes camera tracking to fail
- Stage geometry is not showing when loading USD scenes

### Operators

- Slow render on Operators with specific scenes

### UI

- Wrong scene name printed in the Spawner command-line options
- Safe allocations prompt showing on render instances