# semver/semver

Semantic Versioning Specification

Repository: https://github.com/semver/semver
Canonical: https://ross.abutalabs.com/products/semver
License Family: other
Last push: 2025-11-05T20:57:47+00:00

## Health v2 (maintenance only)
Score: 45/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 50, release rhythm 8, longevity 100
- inputs: {"age_days": 5575, "days_push": 301, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 7842, forks 777 (observed 2026-08-28T04:10:06.514918+00:00)

## What it is
The canonical Semantic Versioning (SemVer) specification, a set of rules dictating how software version numbers are assigned and incremented. It is a reference document published at semver.org rather than executable software.

## Use cases
- understand how semantic version numbers work
- decide when to bump major vs minor vs patch versions
- cite a standard for versioning a library's releases
- resolve arguments about pre-release and build metadata version formats
- adopt a versioning convention for an open-source project

## When to choose
- you need the authoritative definition of SemVer 2.0.0 to reference or implement
- you are designing tooling that parses or validates version strings

## When to avoid
- you need a library or CLI that actually parses and compares versions in a specific language
- you need an alternative scheme like CalVer or zero-based versioning

## Facets
- artifact type: learning-resource
- maturity: stable
- function: documentation, version-control, developer-tools
- domain: developer-tools, version-control, documentation
- platform: -
- tags: specification, semantic-versioning, semver, standards, reference-document, web-server

## Member repositories
- semver/semver (main) score 45

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:06.514918+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:33:53.412766+00:00, confidence not recorded.
  - readme: https://github.com/semver/semver (fetched 2026-08-28T04:10:06.514918+00:00, sha bb5eb4cbf91d)
- Data as of 2026-08-30T08:39:29.467469+00:00.