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Slate v2 IME / Mobile / Browser RC Review

docs/plans/2026-04-11-slate-v2-ime-mobile-browser-rc-review.md

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Slate v2 IME / Mobile / Browser RC Review

Goal

Review the RC risk for the weirdest editor surface:

  • IME
  • mobile/composition-adjacent behavior
  • browser-specific selection/focus/input edge cases

Review Question

Do we already have enough parity/proof against legacy Slate React to keep RC honest, or is a deeper dedicated analysis still required?

Review Method

  1. pull the existing proof and learning docs
  2. inspect current slate-react browser/input code
  3. inspect the equivalent legacy Slate React paths
  4. compare coverage and deliberate cuts
  5. report findings first, then residual risks and recommendation