This is a "canary" release of the most recent commits on our main branch. Canary is not stable. It is only intended for developers wishing to try out the latest features in Spin, some of which may not be fully implemented.
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Changelog
Spin is the open source developer tool for building and running serverless applications powered by WebAssembly.
This is a "canary" release of the most recent commits on our main branch. Canary is not stable. It is only intended for developers wishing to try out the latest features in Spin, some of which may not be fully implemented.
Full Changelog: https://github.com/spinframework/spin/compare/v3.5.0...v3.5.1
Support for the WASI Preview 3 release candidate (wasi@0.3.0-rc-2025-09-16) has landed in Spin v3.5.0! 🚀 This means folks can take advantage of first class composable concurrency and other underlying advancements to the Component Model, a whole host of simplified APIs, and better integration with language ecosystem libraries and frameworks. Read more in depth on advancements with WASIp3 [here](h...
This is a patch release to pull in Wasmtime v36.0.2 which fixes an OOM panic.
After downloading the v3.4.1 release of Spin, either via the artifact attached to this release corresponding to your OS/architecture combination or via the installation method of your choice, you are ready to verify the release signature....
Spin 3.4 is here with some great quality-of-life enhancements! You can now make outgoing HTTP/2 requests, opening the door to faster APIs and gRPC backends with no extra setup. Postgres got a big boost too: connections are now pooled automatically for better performance under load, and you can use more data types like UUID, JSONB, ranges, arrays, decimals, and INTERVAL. On top of that, Spin templa...