fission-ai/openspec is a spec-driven development (SDD) project for AI coding assistants. v1.16.0 was released on October 30, 2026. This release raises the minimum Node.js version required for npm installation to 22.12.0 or later and adds a validation feature that detects more spec errors. The source of these changes is the GitHub release notes for fission-ai/openspec. The release notes explain that the minimum Node.js version bump is a measure taken in response to the end of support for Node 20. Support for Node 20 ended on April 30, 2026.
The scope of this change differs by installation method. npm installation requires Node.js 22.12.0 or later, but standalone binaries and Homebrew installations are unaffected. The runtime condition that changed in this release is therefore not a requirement that applies to every installation method alike. Whether a Node.js version bump is needed depends on the installation method in use. The release information states both the reason for this version bump and the installation methods that are not affected.
The validation feature is described as detecting more spec errors, but the kinds of errors it targets and the scope of detection are not given. No figures showing the degree of improvement are provided either. The addition of the feature can therefore be confirmed, but it is hard to tell from the release information alone which errors it actually catches more of.