docs(license): relicense from MIT to GPL-3 - #106
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Per z-shell/.github ADR-0017, which classifies this repository as L1: organization-authored code that is not combined as source with a user's own shell code. GPL-3 is required for that class. This repository is organization-authored with no third-party copyright barrier, and MIT explicitly grants sublicense rights, so no contributor consent is required. Every previously published release remains available under MIT; this change reaches future releases only. The license text is the verbatim FSF GPL-3, byte-identical to the copy already used by .github, wiki, src, and z-a-meta-plugins.
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Draft. Depends on z-shell/.github#522 (ADR-0017), which is still
PROPOSED. Merge after that ADR is accepted.ADR-0017 classifies this repository as L1: organization-authored code that is not combined as source with a user's own shell code. GPL-3 is required for that class. The maintainer approved this specific relicensing on 2026-08-18.
This repository has no license section in its README, so nothing else needs updating. Adding one is worth a separate follow-up.
Why this is safe to do unilaterally
This repository is organization-authored with no third-party copyright barrier, and the MIT license explicitly grants sublicense rights, so no contributor consent is required. Contrast
zunitandzsh, which carry third-party copyright and are therefore class L3 and never relicensed.What it does not do
Relicensing is prospective only. MIT grants already made cannot be revoked, so every previously published release stays available under MIT and remains forkable. This affects future releases only, and a release note should say so plainly.
The license text is the verbatim FSF GPL-3, byte-identical (
f288702d) to the copy already used by.github,wiki,src, andz-a-meta-plugins.🤖 Generated with Claude Code