feat!: drop IE 11 and modernize browser targets#946
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Switch from manual CHANGELOG management to @changesets/changelog-github. - Update .changeset/config.json to use @changesets/changelog-github - Pass GITHUB_TOKEN to changeset version step in release workflow (@changesets/changelog-github needs it to fetch PR metadata for links) - Fix git add to include CHANGELOG.md (pre-existing bug — changeset version modifies CHANGELOG.md but it was never staged in the commit step) - Fix stale v3.0.6 '(Unreleased)' label — published to npm August 25, 2025
…ELOG date Two items from the PR 4a plan that were missed in the original commit: 1. @changesets/changelog-github was referenced in .changeset/config.json but never declared in package.json devDependencies. The lockfile had the specifier (from pnpm install), so CI's --frozen-lockfile saw a mismatch and failed. 2. CHANGELOG.md v3.0.6 date was still "(Unreleased)" — v3.0.6 was published to npm on August 25, 2025.
BREAKING CHANGE: Drop IE 11, Safari 8, iOS 8, Android 4.4 browser support. Minimum browser targets are now rolling modern versions aligned with Shopify Online Store themes. The library now emits ES2015+ JavaScript (native classes, arrow functions, template literals) and no longer transpiles to ES5. - Update browserslist to union of @shopify/browserslist-config + Theme Store requirements - Remove 15 Babel ES5 transform plugins + dead @babel/plugin-external-helpers - Remove 7 polyfill imports from buybutton.js (whatwg-fetch, core-js/*) - Replace UglifyJS with terser for ES2015+-compatible minification - Add terser error guard against silent minification failure - Keep @babel/plugin-transform-modules-commonjs for Browserify test pipeline (until PR 7a) - Native ES2015 classes replace loose-mode Babel classes (non-enumerable prototype methods) - Create major changeset for 4.0.0 version bump - Pin pnpm/action-setup to commit SHA in ci.yml (supply chain hardening) - Add @changesets/changelog-github as explicit devDependency (was phantom)
Add PR 4b review recommendations from Sheldon (source maps) and Kara (stale caniuse-lite) as prerequisite notes on PR 6 (Vite migration), where both issues naturally resolve. This ensures the deferred items are not lost between PRs.
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BREAKING CHANGE: Drop IE 11, Safari 8, iOS 8, Android 4.4 browser support.
Minimum browser targets are now rolling modern versions aligned with
Shopify Online Store themes. The library now emits ES2015+ JavaScript
(native classes, arrow functions, template literals) and no longer
transpiles to ES5.
requirements
(until PR 7a)
prototype methods)