Replace Hackney with Req as HTTP client#165
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Addresses security concerns with Hackney (CVE-2018-1000007, AIKIDO-2026-10122). Req provides a modern, actively maintained HTTP client built on Mint. Changes: - Add Req as required dependency, remove Hackney - Implement Tzdata.HTTPClient.Req with redirect support - Set Req as default HTTP client in configuration - Hackney implementation remains available for backward compatibility - Update README with migration information Co-Authored-By: Matt Wynne <matt.wynne@mechanical-orchard.com>
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This would be great! |
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Plus one. @lau, any chance this could get merged and released? |
metabren
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May 13, 2026
Internal HTTP/JSON client swap. Public API unchanged. Motivated by Hackney's security history; mirrors lau/tzdata#165. Also bumps Elixir floor to 1.15, modernises ex_doc/credo/dialyxir, and moves CI to OTP 26 / Elixir 1.17. Adds Bypass-backed tests for the Slack and Discord services (0% → 85%/100% on those modules). Caller-visible breaking change: transport-error reasons are now strings ("connection refused") rather than atoms (:econnrefused). Tuple shape {:error, {:error, reason}} is unchanged. See CHANGELOG.md and guides/upgrading_to_v2.md.
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Addresses security concerns with Hackney (CVE-2018-1000007, AIKIDO-2026-10122). Req provides a modern, actively maintained HTTP client built on Mint.
Changes:
Licensing: This contribution is made by employees of Mechanical Orchard, Inc. under the terms of the project's license.