cff-version: 1.2.0
message: "If you use this dataset or its tools, please cite it as below."
type: dataset
title: "PyPI API Drift: a release-level record of public API changes in 1,872 popular Python libraries"
authors:
  - family-names: "Devanahalli Gopalakrishna"
    given-names: "Pushkar"
    affiliation: "Independent Researcher, USA"
version: "2026.10-v1.3"
date-released: "2026-10-22"
license: CC-BY-4.0
repository-code: "https://github.com/pushkardg/pypi-api-drift"
url: "https://huggingface.co/datasets/pushkar87dg/pypi-api-drift"
preferred-citation:
  type: article
  title: "PyPI API Drift: A Release-Level Record of Public API Changes in 1,872 Popular Python Libraries, with a Checker and a Benchmark for Version-Aware Code Generation"
  authors:
    - family-names: "Devanahalli Gopalakrishna"
      given-names: "Pushkar"
      affiliation: "Independent Researcher, USA"
  year: 2026
  publisher:
    name: "Zenodo"
  doi: "10.5281/zenodo.23648339"
  url: "https://doi.org/10.5281/zenodo.23648339"
keywords:
  - Python
  - PyPI
  - API evolution
  - breaking changes
  - semantic versioning
  - code generation
  - large language models
  - benchmark
abstract: >-
  Public-API snapshots and release-to-release changes for the 1,872 most-downloaded Python libraries
  (55,565 releases, 2021-2026), with signature-level detail, deduplication, confidence labels, a coverage layer and
  AI-agent runtime audits; plus apidrift-check (an offline version-aware checker), apidrift-lookup and an MCP server,
  and the VersionProbe benchmark.