---
id: bump-my-version
version: "1.5.1"
license: MIT License Copyright (c) 2013-2014 Filip Noetzel Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to… (full text in the JSON record)
license_treatment: permissive
maintenance: active
---

# bump-my-version — Version bump your Python project

License: permissive · Maintenance: active · Downloads: 955.8K/mo

## What it is and what it does

Bump My Version is a maintained refactor of the bumpversion project, designed to automate version number management throughout a project's development lifecycle. It parses version strings according to configurable patterns, increments version components (major, minor, patch, or custom parts), and replaces version strings across project files. It supports semantic versioning, calendar versioning, and arbitrary custom schemes via regex-based parsing and serialization rules.

The tool integrates with source control by committing version changes and creating release tags. It reads configuration from pyproject.toml or .bumpversion.toml files and provides a CLI built on click and rich for interactive and scripted use. Common workflows include bumping versions before releases, automating pre-release numbering, and querying the next version number in build pipelines.

Use it for:

- Automate version bumping in CI/CD pipelines before building and publishing releases
- Manage pre-release versions (dev, rc, final) with automatic numbering based on commit distance
- Update version strings consistently across multiple project files (setup.py, __init__.py, docs, etc.)
- Generate release tags and commit messages automatically when cutting a new version
- Query the next version number in build scripts without modifying the project state
- Support custom versioning schemes beyond semantic versioning (e.g., calendar-based or internal numbering)

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

Automates version number management in projects by parsing, incrementing, and serializing version strings across multiple files, with support for semantic versioning, calendar versioning, and custom schemes.

Yes. Bump My Version is actively maintained, has no known vulnerabilities, and solves a common release-engineering problem with low install friction. It is suitable for projects of any size that need automated, consistent version management. The permissive MIT license and broad Python version support (3.9+) make it a safe dependency. Install it if your project cuts releases and you want to eliminate manual version-number edits.

## Install

pip install bump-my-version
uv add bump-my-version
poetry add bump-my-version

## Installing bump-my-version

Before you install: Low friction install with a pure-Python wheel. Active maintenance (last commit 2026-08-10) and recent release (2026-08-06). Nine runtime dependencies are all well-established CLI and data-validation libraries (click, pydantic, rich, tomlkit), suggesting a stable, maintainable codebase.

License in practice: MIT License permits commercial and private use, modification, and redistribution with minimal restrictions—standard permissive terms suitable for most projects.

Quickstart:

pip install bump-my-version
bump-my-version sample-config --no-prompt --destination .bumpversion.toml
bump-my-version show current_version
bump-my-version bump patch

Requires Python 3.9 or later. Git repository recommended for commit and tag operations.

Verify before relying:

- Whether httpx2 is a typo for httpx and what HTTP operations the package performs
- Scope and frequency of breaking changes in the maintained fork relative to the original bumpversion project

## Package facts

- License: MIT License Copyright (c) 2013-2014 Filip Noetzel Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to… (full text in the JSON record) (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: active
- Downloads: 955.8K/month (top 5,000 on PyPI)
- Known vulnerabilities: none known

## Tags

version bump automation, semantic versioning tool, project version management, automated release versioning, version string replacement, git tag and commit versioning, pyproject.toml version config, release-automation, version-management, cli-tool

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