4.1.0

Release notes for 4.1.0.

Released: 2026-07-18

Features

• Theme-pack fonts now reach the app shell (header, sidebar, TOC, breadcrumb, pager) via a global body font seam, with per-surface chrome font tokens for finer control (f84b2bd2)

Bug Fixes

• Per-surface chrome font knobs anchor to the seam token instead of relying on inheritance (dbd95365)

• Docs: corrected the false claim that mobile chrome strips theme-pack font tokens — mobile hooks receive them like desktop (3cbe0d45, 493f76dc)

• E2E: theme-pack font specs assert the body font-family directly, target the bundled foundry pack, and wait for switcher hydration (d88e4c5a, 218e8844)

• Reverted a hand-edited generated CHANGELOG.md — it is corpus-generated (ef43274c)

Other Changes

• Toolchain: @takazudo/zfb family (zfb, zfb-runtime, zfb-adapter-cloudflare, zfb-md-wasm) adopted through 0.1.0-next.89 (02268414)

• Bilingual docs for the chrome font seam tokens and the mobile reach caveat (58cf6fc2)

• Durable e2e regression spec for the chrome font seam (69af425e)