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# v0.5.11 — C# support and new AI tool system

Released April 2, 2026

## Highlights

* Full .NET/C# support on macOS and Windows
* New AI tool system with smarter code editing and project understanding
* Improved export pipeline and texture format defaults

## Changes

Added
* .NET/C# support: create and edit C# scripts, bundled .NET SDK, GodotSharp assemblies
* New AI tool system for more reliable code editing and scene manipulation
* Bundled export templates for one-click game exports on macOS

Improved
* macOS export defaults now use ETC2/ASTC texture formats (fewer export blockers)
* Export error messages link to troubleshooting guide
* macOS app bundle includes all dependencies for offline use

Source: https://www.summerengine.com/changelog/0.5.11

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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