Introducing developer.upsun.com: Upsun docs, rebuilt for developers and AI agents
The Upsun documentation has moved to developer.upsun.com with a complete infrastructure rebuild focused on agent-readiness. 244+ pages of structured, machine-readable content with llms.txt support and built-in AI assistance.
Announcing the Official Upsun Node.js SDK
Discover how the Upsun Node SDK simplifies API access and speeds up integrations, with clear documentation and modern tooling.
Composer 2.9 lands on Upsun PHP Images: Here’s what you need to know
Remote code execution vulnerability in Next.js 15.x and 16.x App Router requires immediate patching. Learn how to secure your applications.
One project, many needs: How Composable Image embraces real-world diversity
Applications rarely fit inside a single tidy runtime box. They evolve through experiments, architectural shifts, quick MVP spikes that outlast their intended lifespan, and the continuous layering of new business needs.
PHP 8.5 is here!
What if the next PHP revolution made no noise but completely transformed your developer daily life?
Introducing the Upsun PHP SDK
Discover how the Upsun PHP SDK simplifies API access and speeds up integrations, with clear documentation and modern tooling.
Redis 8.0 is here
We are excited to announce that Redis 8.0 is now available for all customers.
New file size limits explained
To ensure the optimal performance, stability, and reliability of our Git infrastructure, we are introducing a limit on the size of individual files that can be pushed to your project repositories.
Supercharge your workflow with the Upsun VSCode Extension
If you’re working on Upsun projects with VSCode, the Upsun VSCode extension is an essential tool to enhance your development experience. Learn more…
Valkey is now available
We’re excited to announce the availability of Valkey, a high-performance, open-source key/value database, now offered as a managed service on Upsun. Valkey serves as a drop-in alternative to Redis, particularly relevant following recent licensing changes to the Redis project.
Apologies to the Elixir community: 1.18 release now available
Elixir 1.18 is now available on Upsun and Platform.sh with type checking, LSP improvements, and built-in JSON support.
Upsun and Platform.sh Docs are now llms.txt compatible!
We’re thrilled to announce that both Upsun Documentation and Platform.sh Documentation are now fully compatible with llms.txt proposed standard!