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# v0.5.66 — Summer can build your game with you

Released September 10, 2026

## Highlights

* Ask Summer to create and edit entire scenes, live in your project
* Summer understands 3D space and can place, align, and frame objects on request
* A steadier editor with more reliable asset downloads and safer crash recovery

## Changes

Added
* Conversational scene building: Summer creates, arranges, and wires up nodes for you in the live project
* Spatial awareness so Summer can place and align objects, frame the camera, and navigate your 3D scene
* Summer can work in your project in the background without taking over your screen or mouse

Improved
* Asset downloads retry across every available server, so one flaky connection no longer fails an import
* Crash reporting, a shutdown watchdog, and macOS Metal and menu fixes keep long sessions steady
* Faster, quieter startup with a skippable intro

Fixed
* Stopping a running game now reports the correct state every time
* The native Asset Store no longer shows up in the Agent layout
* macOS builds load C# projects cleanly with the correct bundled .NET runtime

Source: https://www.summerengine.com/changelog/0.5.66

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## Machine-readable resources

- Site index for agents: https://www.summerengine.com/llms.txt
- Full inlined content: https://www.summerengine.com/llms-full.txt
- Porting catalog: https://www.summerengine.com/llms-porting.txt
- Structured catalog: https://www.summerengine.com/agent-catalog.json
- Sitemap: https://www.summerengine.com/sitemap.xml
- Developer resources: https://www.summerengine.com/docs