Bumpy

Details

External ID

47931761

Source

HN

Company

—

Product

Bumpy

Website domain

github.com

Launched

April 28, 2026

Cohort

—

Upvotes

5

Upvotes percentile

0.11182519280205655

Tags

—

Fetched at

Sept. 7, 2026, 9:26 p.m.

Updated at

Sept. 7, 2026, 9:26 p.m.

Description

Meet bumpy - your new favourite open-source versioning, release, and changelog tool. Especially useful in monorepos with many related packages, but also great to use in simpler setups.This is a modern successor to the popular changesets tool, used by many open source projects.While changesets is great, and I love the file-based bump+changelog workflow, the project has hundreds of open issues, many of which have been open for multiple years. Bumpy fixes most of the important ones (over 120+ by my last count), and adds some new features as well. It also greatly simplifies things, so it should be easier to evolve as folks start pushing its limits.Some highlights: - changesets is built as a monorepo with 20 subpackages, this is a much simpler monolith - changesets requires you install a github app, use a github action, an npm module, and another for changelog formatting (this is a single install) - much more flexible include/exclude logic, instead of assuming behaviour is the same for all private packages - allows custom publishing commands, does not assume/force npm publishing - more sane peer dependency bumping logic - built in formatters, and easier to write custom ones - non-interactive version of add command (useful for agents) - it's infested with delightful frogs - lots of other small quality of life improvements What's missing: - no prerelease workflows yet (changesets users say this part of it is very confusing, so want to get it right) - I want to allow multiple publish targets per package - Add plugin system to define common publishing targets (e.g., VSCode extension marketplace) Yes it was coded using AI, but carefully. There is a comprehensive test suite. We are using it actively to release varlock along with 25+ related libs and plugins.Run `bunx @varlock/bumpy init` to get started - if you are using changesets, it will help you migrate automatically.

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