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• Auto release

Plan (when applicable): none.

Why

main pins slate 0.132.0, slate-dom 0.132.0, slate-react 0.132.0 and slate-hyperscript 0.129.1. This PR moves Plate to the latest releases: slate 0.142.1, slate-dom 0.142.0, slate-react 0.142.0 and slate-hyperscript 0.138.3. The releases in between carry Android and IME input fixes, Firefox and WebKit caret fixes, scrolling fixes and core transform fixes.

The upgrade needs two changes in @platejs/slate:

• hasRange. slate 0.134 added editor.hasRange to core, and DOMEditor.hasRange now delegates to it. syncLegacyMethods copies core editor methods into editor.api, so core's hasRange, which throws on a missing range, replaced Plate's try/catch version.
• History. Plate's bundled copy of slate-history predates four upstream PRs (#5837, #5866, #6063, #6308). Each fixes a live bug in Plate, and each fixed case has a test in this PR that fails without the fix.

Scope

• packages/core, packages/slate, packages/test-utils, apps/www: bump the slate packages. The lockfile changes only the slate entries.
• packages/slate/src/internal/dom-editor/hasRange.ts: calls slate's hasRange inside the existing try/catch. create-editor.ts also assigns it to editor.hasRange, so editor.hasRange, editor.api.hasRange and DOMEditor.hasRange share one implementation and can't call each other in a loop.
• packages/slate/src/slate-history/history.ts:
  • withoutSaving, withoutMerging, withMerging and withNewBatch restore their flags in finally (slate #5837, #6063).
  • A nested withNewBatch keeps the outer split (#6063).
• packages/slate/src/slate-history/with-history.ts:
  • An operation merges into the last batch only when that batch's last op ran in the current tick (#5866), not whenever any operation ran in the tick.
  • Inside withoutMerging, a transform's normalization stays in the same undo step as the transform (#6308).
• The bundled history now matches slate-history 0.140.0. Plate's own additions are unchanged: restoring the selection on redo, setNodesBatch and cloneRange.
• Changesets: @platejs/core and @platejs/slate patch.

Blast radius

Every Plate editor gets the new slate, slate-dom and slate-react. These are the changes since 0.132 that users or plugin authors may notice:

• Paste. Multi-line plain-text paste outside an inline now calls insertFragment once instead of insertText per line, with an insert_node per middle line instead of a split_node (slate #6265). Plugins that override insertText to catch multi-line pastes no longer see them. Editors with MarkdownPlugin parse plain text first and don't reach this path. Pasting a block void such as an image mid-block now splits the block (#5937).
• Deletion. Deleting a range from the start of one block to the start of a later sibling removes the selected blocks instead of emptying them (#6282). Triple-click whole-block deletion applies only to top-level blocks, so table cells survive cut and drag (#6287).
• Words. Word deletion and movement use Intl.Segmenter, so Chinese, Japanese and Thai text steps by word (#6268).
• Read-only editors. slate-react now calls caller-provided event handlers on read-only editors (#6294). Plate plugin handlers on read-only editors now run unless the plugin sets editOnly, because Plate's pipeHandler already decides that per plugin.
• Errors. Slate's DOM handlers no longer throw DOM mapping errors. A failure after the DOM settles goes to editor.onDOMError, which calls reportError by default (#6266). An invalid mergeNodes call that mixes block and inline children now throws instead of letting normalization discard content (#6304).
• Other. insertText keeps a null selection unless called with select: true (#6281). Copied HTML keeps list wrappers when the selection spans list items (#6241). The placeholder sets aria-placeholder on the editor root and aria-hidden on its span (#6306).

The history changes affect undo grouping only in these cases: a callback that throws, a nested withNewBatch, a selection change followed by an edit in the same tick, and normalization inside withoutMerging.

Verification

• pnpm check exits 0 on the head commit (workflow check, lint, typecheck, test:all, test:slowest). CI is green.
• New tests that fail without the fix:
  • packages/slate/src/slate-history/upstream-parity.spec.tsx: one case per history fix.
  • packages/slate/src/internal/dom-editor/hasRange.spec.ts: the missing-range case throws without the fix.
• Browser smoke on /blocks/playground with slate 0.142.1, Chromium: typing, Enter, word delete, undo and redo grouping, and multi-line plain-text paste with a one-step undo. No console errors. An earlier run on 0.136 covered Chromium, Firefox and WebKit, including bold, markdown shortcuts, select-all delete, copy and paste, and Chinese IME composition in Chromium.
• Not tested: tables, drag and drop, comments, AI and mobile devices. Plate's e2e suite is disabled in CI, so these have no browser coverage.

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[changeset-bot]

🦋 Changeset detected

Latest commit: 37826dd

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
@platejs/core	Patch
@platejs/slate	Patch
@platejs/test-utils	Patch

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