[property-grid]: Version 2.0

[saskliutas]

Closes #1669

This PR will hold major changes planned for property-grid and listed in linked issue. Major changes will be merged into this branch and merged into master in one go when all planned changes are made.

[Copilot]

Pull request overview

Updates @itwin/property-grid-react toward the planned 2.0 release by reducing legacy/deprecated surface area, aligning with newer iTwin/AppUI + Presentation packages, and simplifying packaging/build output (ESM-only).

Changes:

• Dropped CommonJS build output and updated TS build/exports to a single lib ESM output.
• Removed deprecated Property Grid APIs and deprecated selection handling; Property Grid now requires unified selectionStorage to be provided.
• Bumped/expanded dependency support (notably @itwin/presentation-components@6) and updated test-viewer + learning snippets accordingly, including defaulting to the “new” editor system.

Reviewed changes

Copilot reviewed 39 out of 43 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
packages/itwin/tree-widget/pnpm-lock.yaml	Updates lockfile to newer @itwin/* versions, including presentation-components@6.
packages/itwin/tree-widget/package.json	Expands presentation-components peer range to include v6.
packages/itwin/property-grid/tsconfig.lib.json	Updates emit config to build into lib/ (single output folder).
packages/itwin/property-grid/tsconfig.json	Sets noEmit for the base config and bumps TS lib target to ESNext.
packages/itwin/property-grid/tsconfig.cjs.json	Removes CJS build config.
packages/itwin/property-grid/src/test/TestUtils.tsx	Updates stubs to match new Presentation APIs and unified selection usage.
packages/itwin/property-grid/src/test/PropertyGridUiItemsProvider.test.tsx	Updates tests to remove deprecated provider and require selectionStorage.
packages/itwin/property-grid/src/test/hooks/UseInstanceSelection.test.tsx	Updates hook tests to unified selection storage only (drops deprecated manager path).
packages/itwin/property-grid/src/test/components/PropertyGridContent.test.tsx	Adjusts editing behavior expectations for the new editor system/defaults.
packages/itwin/property-grid/src/test/components/PropertyGrid.test.tsx	Updates component tests to pass selectionStorage and use unified storage APIs.
packages/itwin/property-grid/src/test/components/MultiElementPropertyGrid.test.tsx	Updates multi-element grid tests to unified selection storage only.
packages/itwin/property-grid/src/property-grid-react/PropertyGridUiItemsProvider.tsx	Removes deprecated provider API and requires selectionStorage throughout widget logic.
packages/itwin/property-grid/src/property-grid-react/hooks/UseUnifiedSelectionHandler.ts	Deletes legacy adapter hook that supported deprecated selection manager path.
packages/itwin/property-grid/src/property-grid-react/hooks/UseInstanceSelection.ts	Switches hook implementation to direct selectionStorage usage (no deprecated path).
packages/itwin/property-grid/src/property-grid-react/hooks/UseDataProvider.ts	Removes deprecated data-provider method usage in wrapper.
packages/itwin/property-grid/src/property-grid-react/components/PropertyGrid.tsx	Makes selectionStorage required prop for PropertyGrid.
packages/itwin/property-grid/src/property-grid-react/components/MultiElementPropertyGrid.tsx	Uses selectionStorage.selectionChangeEvent directly to reset view on selection change.
packages/itwin/property-grid/src/property-grid-react/components/FilteringPropertyGrid.tsx	Defaults editorSystem to "new" when not explicitly set.
packages/itwin/property-grid/src/property-grid-react.ts	Stops re-exporting removed/deprecated UI items provider API.
packages/itwin/property-grid/README.md	Updates examples to pass selectionStorage.
packages/itwin/property-grid/package.json	Converts package to ESM-only output + updates peers/dev deps, bumps core/appui/presentation versions, updates scripts.
packages/itwin/property-grid/api/property-grid-react.exports.csv	Removes deprecated exports from the public API list.
packages/itwin/property-grid/api/property-grid-react.api.md	Updates API report to reflect removed deprecated symbols and required props.
change/@itwin-tree-widget-react-8b3acca0-f50b-4293-a4b1-22da86c3b221.json	Publishes tree-widget change note for presentation-components@6 support.
change/@itwin-property-grid-react-da9d4d0e-e7ac-446f-9bc8-77fc79531fd6.json	Publishes major change note for dropping CJS.
change/@itwin-property-grid-react-b271e2d2-3c47-4842-9ee9-87d43614b111.json	Publishes major change note for removing deprecated provider and legacy shouldShow overload.
change/@itwin-property-grid-react-a30bb4a3-267f-4b83-b9cf-80a0a0e41772.json	Publishes major change note for removing deprecated Presentation.selection handling.
change/@itwin-property-grid-react-9005608d-33de-42b6-bf02-553706184551.json	Publishes major change note for AppUI peer bump.
change/@itwin-property-grid-react-8de1da6a-756b-4e40-ab2e-d8cb2b603b6c.json	Publishes major change note for required selectionStorage on components.
change/@itwin-property-grid-react-8c37b79f-cc98-4ad5-adaa-1fdd378a8bda.json	Publishes major change note for broader dependency + React support updates.
change/@itwin-property-grid-react-27363ac7-09b3-46b8-9466-3769277cf108.json	Publishes major change note for defaulting to "new" editor system.
change/@itwin-property-grid-react-07764625-b7f5-40a0-9cdf-614bde5397d9.json	Publishes major change note for presentation-components@6 peer bump.
apps/test-viewer/src/UiProvidersConfig.tsx	Removes explicit editorSystem: "new" since it’s now the default.
apps/test-viewer/package.json	Bumps test-viewer dependencies to align with the updated iTwin/presentation versions.
apps/learning-snippets/src/test/tree-widget/FilteredPaths.test.tsx	Updates query row format usage and row indexing to match updated query behavior.
apps/learning-snippets/src/test/property-grid/Usage.test.tsx	Updates snippet to pass selectionStorage into createPropertyGrid.
apps/learning-snippets/src/test/property-grid/Telemetry.test.tsx	Updates snippets/tests to use unified selection storage instead of deprecated Presentation selection.
apps/learning-snippets/src/test/property-grid/SettingMenuItem.test.tsx	Updates snippet to pass selectionStorage into PropertyGridComponent.
apps/learning-snippets/src/test/property-grid/ContextMenuItem.test.tsx	Updates snippet to pass selectionStorage and set selection through unified storage.
apps/learning-snippets/package.json	Bumps learning-snippets dependencies to align with updated iTwin/presentation versions.

Files not reviewed (1)

• packages/itwin/tree-widget/pnpm-lock.yaml: Generated file

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[github-actions]

Tree-Widget benchmark

Benchmark suite	Current: b5e7073	Previous: cc6226c	Deviation	Status
models tree creates initial filtered view for 50k target items	1090 ms	1044 ms	4.41%	〰️
models tree creates initial filtered view for 50k target items (P95 of main thread blocks)	121 ms	116 ms	4.31%	〰️
models tree validates categories visibility for imodel with 50k categories	10943 ms	11201 ms	-2.30%	〰️
models tree validates categories visibility for imodel with 50k categories (P95 of main thread blocks)	90 ms	81 ms	11.11%	〰️
models tree changing model visibility changes visibility for 50k elements	3399 ms	2971 ms	14.41%	🚨
models tree changing model visibility changes visibility for 50k elements (P95 of main thread blocks)	119 ms	0 ms	11900%	🚨
models tree changing category visibility changes visibility for 50k elements	3142 ms	2835 ms	10.83%	🚨
models tree changing category visibility changes visibility for 50k elements (P95 of main thread blocks)	21 ms	0 ms	2100%	〰️
models tree changing per-model-category override changes visibility for 50k elements	3119 ms	3018 ms	3.35%	〰️
models tree changing per-model-category override changes visibility for 50k elements (P95 of main thread blocks)	0 ms	0 ms	0%	🟰
models tree changing element visibility changes only parent nodes visibility with 50k elements	4322 ms	4642 ms	-6.89%	〰️
models tree changing element visibility changes only parent nodes visibility with 50k elements (P95 of main thread blocks)	79 ms	84 ms	-5.95%	〰️
categories tree creates initial filtered view for 50k items	1397 ms	1457 ms	-4.12%	〰️
categories tree creates initial filtered view for 50k items (P95 of main thread blocks)	239 ms	279 ms	-14.34%	〰️
categories tree changing definition container visibility changes visibility for 50k subCategories	2673 ms	2796 ms	-4.40%	〰️
categories tree changing definition container visibility changes visibility for 50k subCategories (P95 of main thread blocks)	41 ms	56 ms	-26.79%	〰️
categories tree changing definition container visibility changes visibility for 50k categories	5618 ms	5791 ms	-2.99%	〰️
categories tree changing definition container visibility changes visibility for 50k categories (P95 of main thread blocks)	115 ms	125 ms	-8%	〰️

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