# Spec Kit - February 2026 Newsletter

This edition covers Spec Kit activity in February 2026. Versions v0.1.7 through v0.1.13 shipped during the month, addressing bugs and adding features including a dual-catalog extension system and additional agent integrations. Community activity included blog posts, tutorials, and meetup sessions. A category summary is in the table below, followed by details.

| **Spec Kit Core (Feb 2026)** | **Community & Content** | **Roadmap & Next** |
| --- | --- | --- |
| Versions **v0.1.7** through **v0.1.13** shipped with bug fixes and features, including a **dual-catalog extension system** and new agent integrations. Over 300 issues were closed (of ~800 filed). The repo reached 71k stars and 6.4k forks. [\[github.com\]](https://github.com/github/spec-kit/releases) [\[github.com\]](https://github.com/github/spec-kit/issues) [\[rywalker.com\]](https://rywalker.com/research/github-spec-kit) | Eduardo Luz published a LinkedIn article on SDD and Spec Kit [\[linkedin.com\]](https://www.linkedin.com/pulse/specification-driven-development-sdd-github-spec-kit-elevating-luz-tojmc?tl=en). Erick Matsen blogged a walkthrough of building a bioinformatics pipeline with Spec Kit [\[matsen.fredhutch.org\]](https://matsen.fredhutch.org/general/2026/02/10/spec-kit-walkthrough.html). Microsoft MVP [Eric Boyd](https://ericboyd.com/) (not the Microsoft AI Platform VP of the same name) presented at the Cleveland .NET User Group [\[ericboyd.com\]](https://ericboyd.com/events/cleveland-csharp-user-group-february-25-2026-spec-driven-development-sdd-github-spec-kit). | **v0.2.0** was released in early March, consolidating February's work. It added extensions for Jira and Azure DevOps, community plugin support, and agents for Tabnine CLI and Kiro CLI [\[github.com\]](https://github.com/github/spec-kit/releases). Future work includes spec lifecycle management and progress toward a stable 1.0 release [\[martinfowler.com\]](https://martinfowler.com/articles/exploring-gen-ai/sdd-3-tools.html). |

***

## Spec Kit Project Updates

Spec Kit released versions **v0.1.7** through **v0.1.13** during February. Version 0.1.7 (early February) updated documentation for the newly introduced **dual-catalog extension system**, which allows both core and community extension catalogs to coexist. Subsequent patches (0.1.8, 0.1.9, etc.) bumped dependencies such as GitHub Actions versions and resolved minor issues. **v0.1.10** fixed YAML front-matter handling in generated files. By late February, **v0.1.12** and **v0.1.13** shipped with additional fixes in preparation for the next version bump. [\[github.com\]](https://github.com/github/spec-kit/releases)

The main architectural addition was the **modular extension system** with separate "core" and "community" extension catalogs for third-party add-ons. Multiple community-contributed extensions were merged during the month, including a **Jira extension** for issue tracker integration, an **Azure DevOps extension**, and utility extensions for code review, retrospective documentation, and CI/CD sync. The pending 0.2.0 release changelog lists over a dozen changes from February, including the extension additions and support for **multiple agent catalogs concurrently**. [\[github.com\]](https://github.com/github/spec-kit/releases)

By end of February, **over 330 issues/feature requests had been closed on GitHub** (out of ~870 filed to date). External contributors submitted pull requests including the **Tabnine CLI support**, which was merged in late February. The repository reached ~71k stars and crossed 6,000 forks. [\[github.com\]](https://github.com/github/spec-kit/issues) [\[github.com\]](https://github.com/github/spec-kit/releases) [\[rywalker.com\]](https://rywalker.com/research/github-spec-kit)

On the stability side, February's work focused on tightening core workflows and fixing edge-case bugs in the specification, planning, and task-generation commands. The team addressed file-handling issues (e.g., clarifying how output files are created/appended) and improved the reliability of the automated release pipeline. The project also added **Kiro CLI** to the supported agent list and updated integration scripts for Cursor and Code Interpreter, bringing the total number of supported AI coding assistants to over 20. [\[github.com\]](https://github.com/github/spec-kit/releases) [\[github.com\]](https://github.com/github/spec-kit)

## Community & Content

**Eduardo Luz** published a LinkedIn article on Feb 15 titled *"Specification Driven Development (SDD) and the GitHub Spec Kit: Elevating Software Engineering."* The article draws on his experience as a senior engineer to describe common causes of technical debt and inconsistent designs, and how SDD addresses them. It walks through Spec Kit's **four-layer approach** (Constitution, Design, Tasks, Implementation) and discusses treating specifications as a source of truth. The post generated discussion among software architects on LinkedIn about reducing misunderstandings and rework through spec-driven workflows. [\[linkedin.com\]](https://www.linkedin.com/pulse/specification-driven-development-sdd-github-spec-kit-elevating-luz-tojmc?tl=en)

**Erick Matsen** (Fred Hutchinson Cancer Center) posted a detailed walkthrough on Feb 10 titled *"Spec-Driven Development with spec-kit."* He describes building a **bioinformatics pipeline** in a single day using Spec Kit's workflow (from `speckit.constitution` to `speckit.implement`). The post includes command outputs and notes on decisions made along the way, such as refining the spec to add domain-specific requirements. He writes: "I really recommend this approach. This feels like the way software development should be." [\[matsen.fredhutch.org\]](https://matsen.fredhutch.org/general/2026/02/10/spec-kit-walkthrough.html) [\[github.com\]](https://github.com/mnriem/spec-kit-dotnet-cli-demo)

Several other tutorials and guides appeared during the month. An article on *IntuitionLabs* (updated Feb 21) provided a guide to Spec Kit covering the philosophy behind SDD and a walkthrough of the four-phase workflow with examples. A piece by Ry Walker (Feb 22) summarized key aspects of Spec Kit, noting its agent-agnostic design and 71k-star count. Microsoft's Developer Blog post from late 2025 (*"Diving Into Spec-Driven Development with GitHub Spec Kit"* by Den Delimarsky) continued to circulate among new users. [\[intuitionlabs.ai\]](https://intuitionlabs.ai/articles/spec-driven-development-spec-kit) [\[rywalker.com\]](https://rywalker.com/research/github-spec-kit)

On **Feb 25**, the Cleveland C# .NET User Group hosted a session titled *"Spec Driven Development with GitHub Spec Kit."* The talk was delivered by Microsoft MVP **[Eric Boyd](https://ericboyd.com/)** (Cleveland-based .NET developer; not to be confused with the Microsoft AI Platform VP of the same name). Boyd covered how specs change an AI coding assistant's output, patterns for iterating and refining specs over multiple cycles, and moving from ad-hoc prompting to a repeatable spec-driven workflow. Other groups, including GDG Madison, also listed sessions on spec-driven development in late February and early March. [\[ericboyd.com\]](https://ericboyd.com/events/cleveland-csharp-user-group-february-25-2026-spec-driven-development-sdd-github-spec-kit)

On GitHub, the **Spec Kit Discussions forum** saw activity around installation troubleshooting, handling multi-feature projects with Spec Kit's branching model, and feature suggestions. One thread discussed how Spec Kit treats each spec as a short-lived artifact tied to a feature branch, which led to discussion about future support for long-running "spec of record" use cases. [\[martinfowler.com\]](https://martinfowler.com/articles/exploring-gen-ai/sdd-3-tools.html)

## SDD Ecosystem

Other spec-driven development tools also saw activity in February.

AWS **Kiro** released version 0.10 on Feb 18 with two new spec workflows: a **Design-First** mode (starting from architecture/pseudocode to derive requirements) and a **Bugfix** mode (structured root-cause analysis producing a `bugfix.md` spec file). Kiro also added hunk-level code review for AI-generated changes and pre/post task hooks for custom automation. AWS expanded Kiro to GovCloud regions on Feb 17 for government compliance use cases. [\[kiro.dev\]](https://kiro.dev/changelog/)

**OpenSpec** (by Fission AI), a lightweight SDD framework, reached ~29.3k stars and nearly 2k forks. Its community published guides and comparisons during the month, including *"Spec-Driven Development Made Easy: A Practical Guide with OpenSpec."* OpenSpec emphasizes simplicity and flexibility, integrating with multiple AI coding assistants via YAML configs.

**Tessl** remained in private beta. As described by Thoughtworks writer Birgitta Boeckeler, Tessl pursues a **spec-as-source** model where specifications are maintained long-term and directly generate code files one-to-one, with generated code labeled as "do not edit." This contrasts with Spec Kit's current approach of creating specs per feature/branch. [\[martinfowler.com\]](https://martinfowler.com/articles/exploring-gen-ai/sdd-3-tools.html)

An **arXiv preprint** (January 2026) categorized SDD implementations into three levels: *spec-first*, *spec-anchored*, and *spec-as-source*. Spec Kit was identified as primarily spec-first with elements of spec-anchored. Tech media published reviews including a *Vibe Coding* "GitHub Spec Kit Review (2026)" and a blog post titled *"Putting Spec Kit Through Its Paces: Radical Idea or Reinvented Waterfall?"* which concluded that SDD with AI assistance is more iterative than traditional Waterfall. [\[intuitionlabs.ai\]](https://intuitionlabs.ai/articles/spec-driven-development-spec-kit) [\[martinfowler.com\]](https://martinfowler.com/articles/exploring-gen-ai/sdd-3-tools.html)

## Roadmap

**v0.2.0** was released on March 10, 2026, consolidating the month's work. It includes new extensions (Jira, Azure DevOps, review, sync), support for multiple extension catalogs and community plugins, and additional agent integrations (Tabnine CLI, Kiro CLI). [\[github.com\]](https://github.com/github/spec-kit/releases)

Areas under discussion or in progress for future development:

- **Spec lifecycle management** -- supporting longer-lived specifications that can evolve across multiple iterations, rather than being tied to a single feature branch. Users have raised this in GitHub Discussions, and the concept of "spec-anchored" development is under consideration. [\[martinfowler.com\]](https://martinfowler.com/articles/exploring-gen-ai/sdd-3-tools.html)
- **CI/CD integration** -- incorporating Spec Kit verification (e.g., `speckit.checklist` or `speckit.verify`) into pull request workflows and project management tools. February's Jira and Azure DevOps extensions are a step in this direction. [\[github.com\]](https://github.com/github/spec-kit/releases)
- **Continued agent support** -- adding integrations as new AI coding assistants emerge. The project currently supports over 20 agents and has been adding new ones (Kiro CLI, Tabnine CLI) as they become available. [\[github.com\]](https://github.com/github/spec-kit)
- **Community ecosystem** -- the open extension model allows external contributors to add functionality directly. February's Jira and Azure DevOps plugins were community-contributed. The Spec Kit README now links to community walkthrough demos for .NET, Spring Boot, and other stacks. [\[github.com\]](https://github.com/github/spec-kit)
