v4.1.2

A re-verification pass: every dated row of skills/_jutsu/VERSIONS.md was checked again against
its primary source, and the module text that had gone stale follows. The biggest move is on the
web: Firefox 159 shipped scroll-driven animations on 27 October, so all three engines now have
them. The @supports guard stays.

Fixed

• Scroll-driven animations are no longer "Firefox: not shipped". Firefox 159 enables them by
  default, animation-range-start, animation-range-end and timeline-scope included.
  css-native and its modern-css.md say so, and the share of visitors who get nothing drops
  from one in six to about one in eight. Coverage figures across modern-css.md follow caniuse
  data of 2026-10-29, and the reference stable versions are now Chrome 156, Edge 156,
  Firefox 159 and Safari 27.2.
• <Canvas shadows> now logs a warning. three r186 removed PCFSoftShadowMap, which a bare
  shadows asks for: the renderer falls back to PCFShadowMap, soft now. scene-setup.md says
  to write shadows="percentage". threejs-r3f targets r187, gives the widened R3F peer range
  (>=19 <19.4), and says why state.clock warns in every R3F app (three deprecated Clock in
  r183, R3F 9.8 still creates one).
• motion is at v14. framer-motion publishes 14.9.0, and motion now pins it exactly. No
  public API the skill teaches changed.
• Android 16 makes predictive back opt-out. Apps targeting API 36 get it by default on
  Android 16 devices, and onBackPressed is no longer called. mobile-principles says so.
• material3 1.5.0 is in beta, still not stable, and MaterialShapes is still
  @ExperimentalMaterial3ExpressiveApi. compose-graphics and m3-expressive-deep.md no longer
  say "alpha only". The Compose baseline is 1.12.1 (BOM 2026.09.00), navigation 2.10.2,
  navigation3 1.2.0, Compose Multiplatform 1.12.2. Two dates in VERSIONS.md were wrong:
  material3 1.4.0 shipped on 2025-09-24, and Compose Multiplatform had a 1.11 line after 1.10.3.
• iOS 27 shipped on 14 September, and the SwiftUI rows are re-read against it. No SwiftUI
  symbol the modules cite carries a beta flag any more. MagnificationGesture and
  RotationGesture are deprecated as of 27.2, and the gesture references say so.
• bunshin follows Impeccable 4.8.0. The direction contract's FORM block now carries the seed
  reference (seed: and 16 hex), never the raw seed key: Impeccable's finish reviewer flags a
  raw key as a material fix. A re-roll passes --register when the answer carries one, and the
  brief is read back before building.
• VERSIONS.md: every row that could be checked without a human is dated 2026-10-31, whether or
  not its value moved. The rows still marked VERIFY-NEEDED need a session or a browser this
  pass did not have: the subagent tool on claude.ai and Cowork, a logged-out social profile
  harvest, four build traps, and the tells catalogue, which waits on an eval ablation.