Show HN: Testbump – Automate SemVer by running old tests on new code

Category: devtools

Tags: semver, testing, versioning

Score: 7.3/10 (Innovation: 7, Technical: 8, Documentation: 8, Utility: 6)

Testbump automates semantic versioning by running old tests against new code using Git worktrees. It detects breaking changes, features, and patches based on test suite behavior, eliminating guesswork and manual version bumps. The project is interesting for its clever application of test-driven versioning and novel use of Git worktrees.

Target audience: backend devs

Repository: https://github.com/ivoputzer/testbump · JavaScript

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