Migrating to TanStack Table v9 (React)

What's New in TanStack Table v9

TanStack Table v9 is a major release that introduces significant architectural improvements while maintaining the core table logic you're familiar with. Here are the key changes:

1. Tree-shaking

Features are tree-shakeable: Features are now treated as plugins—import only what you use. If your table only needs sorting, you won't ship filtering, pagination, or other feature code. Bundlers can eliminate unused code, so for smaller tables you can expect to bundle ~6–7kb compared to 15–20kb for the same table in v8. This also lets TanStack Table add features over time without bloating everyone's bundles.
Row models and their functions are refactored: Row model factories (createFilteredRowModel, createSortedRowModel, etc.) now accept their processing functions (filterFns, sortFns, aggregationFns) as parameters. This enables tree-shaking of the functions themselves—if you use a custom filter, you don't pay for built-in filters you never use.

2. State Management

Uses TanStack Store: The internal state system has been rebuilt on TanStack Store, providing a reactive, framework-agnostic foundation. This works similarly to TanStack Form's state model.
Opt-in subscriptions instead of memo hacks: Use table.Subscribe or pass a selector to useTable to subscribe to specific slices of state. Only re-render when the state you care about changes—no more React.memo or manual memoization. Pass state => state if you want v8-style behavior where any state change triggers a re-render.

3. Composability

tableOptions: New utilities let you compose and share table configurations. Define _features, _rowModels, and default options once, then reuse them across tables or pass them through createTableHook.
createTableHook (optional, advanced): Create custom table hooks with pre-bound features, row models, and components—similar to TanStack Form's createFormHook. Define your table setup once and reuse it across many tables. You don't need this for most use cases; useTable is sufficient.

The Good News: Most Upgrades Are Opt-in

While v9 is a significant upgrade, you don't have to adopt everything at once:

Don't want to optimize renders? Pass state => state as the selector to useTable and rendering works like v8.
Don't want to think about tree-shaking? Import stockFeatures to include all features, just like v8.
Table markup is largely unchanged. How you render <table>, <thead>, <tr>, <td>, etc. remains the same.

The main change is how you define a table with the useTable hook — specifically the new _features and _rowModels options.

Quick Legacy Migration

Need to migrate incrementally? Use useLegacyTable — it accepts the v8-style API while using v9 under the hood. This is deprecated and intended only as a temporary migration aid. It includes all features by default, resulting in a larger bundle size.

Legacy APIs live in a separate export. Import core utilities from @tanstack/react-table and legacy-specific APIs from @tanstack/react-table/legacy:

tsx

import { flexRender } from '@tanstack/react-table'
import {
  useLegacyTable,
  getCoreRowModel,
  getFilteredRowModel,
  getSortedRowModel,
  getPaginationRowModel,
  legacyCreateColumnHelper,
} from '@tanstack/react-table/legacy'

See the useLegacyTable Guide for full documentation, examples, and type helpers.

The rest of this guide focuses on migrating to the full v9 API and taking advantage of its features.

Core Breaking Changes

Hook Rename

The hook name has been simplified to be consistent across all TanStack libraries:

tsx

// v8
import { useReactTable } from '@tanstack/react-table'
const table = useReactTable(options)

// v9
import { useTable } from '@tanstack/react-table'
const table = useTable(options)

New Required Options: `_features` and `_rowModels`

In v9, you must explicitly declare which features and row models your table uses:

tsx

// v8
import { useReactTable, getCoreRowModel } from '@tanstack/react-table'

const table = useReactTable({
  columns,
  data,
  getCoreRowModel: getCoreRowModel(),
})

// v9
import { useTable, tableFeatures } from '@tanstack/react-table'

const _features = tableFeatures({}) // Empty = core features only

const table = useTable({
  _features,
  _rowModels: {}, // Core row model is automatic
  columns,
  data,
})

The `_features` Option

Features control what table functionality is available. In v8, all features were bundled. In v9, you import only what you need.

Importing Individual Features

tsx

import {
  tableFeatures,
  // Import only the features you need
  columnFilteringFeature,
  rowSortingFeature,
  rowPaginationFeature,
  columnVisibilityFeature,
  rowSelectionFeature,
} from '@tanstack/react-table'

// Create a features object (define this outside your component for stable reference)
const _features = tableFeatures({
  columnFilteringFeature,
  rowSortingFeature,
  rowPaginationFeature,
  columnVisibilityFeature,
  rowSelectionFeature,
})

Using `stockFeatures` for v8-like Behavior

If you want all features without thinking about it (like v8), import stockFeatures:

tsx

import { useTable, stockFeatures } from '@tanstack/react-table'

const table = useTable({
  _features: stockFeatures, // All features included
  _rowModels: { /* ... */ },
  columns,
  data,
})

Available Features

Feature	Import Name
Column Filtering	`columnFilteringFeature`
Global Filtering	`globalFilteringFeature`
Row Sorting	`rowSortingFeature`
Row Pagination	`rowPaginationFeature`
Row Selection	`rowSelectionFeature`
Row Expanding	`rowExpandingFeature`
Row Pinning	`rowPinningFeature`
Column Pinning	`columnPinningFeature`
Column Visibility	`columnVisibilityFeature`
Column Ordering	`columnOrderingFeature`
Column Sizing	`columnSizingFeature`
Column Resizing	`columnResizingFeature`
Column Grouping	`columnGroupingFeature`
Column Faceting	`columnFacetingFeature`

The `_rowModels` Option

Row models are the functions that process your data (filtering, sorting, pagination, etc.). In v9, they're configured via _rowModels instead of get*RowModel options.

Migration Mapping

v8 Option	v9 `_rowModels` Key	v9 Factory Function
`getCoreRowModel()`	(automatic)	Not needed — always included
`getFilteredRowModel()`	`filteredRowModel`	`createFilteredRowModel(filterFns)`
`getSortedRowModel()`	`sortedRowModel`	`createSortedRowModel(sortFns)`
`getPaginationRowModel()`	`paginatedRowModel`	`createPaginatedRowModel()`
`getExpandedRowModel()`	`expandedRowModel`	`createExpandedRowModel()`
`getGroupedRowModel()`	`groupedRowModel`	`createGroupedRowModel(aggregationFns)`
`getFacetedRowModel()`	`facetedRowModel`	`createFacetedRowModel()`
`getFacetedMinMaxValues()`	`facetedMinMaxValues`	`createFacetedMinMaxValues()`
`getFacetedUniqueValues()`	`facetedUniqueValues`	`createFacetedUniqueValues()`

Key Change: Row Model Functions Now Accept Parameters

Several row model factories now accept their processing functions as parameters. This enables better tree-shaking and explicit configuration:

tsx

import {
  createFilteredRowModel,
  createSortedRowModel,
  createGroupedRowModel,
  filterFns,  // Built-in filter functions
  sortFns,    // Built-in sort functions
  aggregationFns, // Built-in aggregation functions
} from '@tanstack/react-table'

const table = useTable({
  _features,
  _rowModels: {
    filteredRowModel: createFilteredRowModel(filterFns),
    sortedRowModel: createSortedRowModel(sortFns),
    groupedRowModel: createGroupedRowModel(aggregationFns),
    paginatedRowModel: createPaginatedRowModel(),
  },
  columns,
  data,
})

Full Migration Example

tsx

// v8
import {
  useReactTable,
  getCoreRowModel,
  getFilteredRowModel,
  getSortedRowModel,
  getPaginationRowModel,
  filterFns,
  sortingFns,
} from '@tanstack/react-table'

const table = useReactTable({
  columns,
  data,
  getCoreRowModel: getCoreRowModel(), // used to be called "get*RowModel()"
  getFilteredRowModel: getFilteredRowModel(),
  getSortedRowModel: getSortedRowModel(),
  getPaginationRowModel: getPaginationRowModel(),
  filterFns, // used to be passed in as a root option
  sortingFns,
})

// v9
import {
  useTable,
  tableFeatures,
  columnFilteringFeature,
  rowSortingFeature,
  rowPaginationFeature,
  createFilteredRowModel,
  createSortedRowModel,
  createPaginatedRowModel,
  filterFns,
  sortFns,
} from '@tanstack/react-table'

const _features = tableFeatures({
  columnFilteringFeature,
  rowSortingFeature,
  rowPaginationFeature,
})

const table = useTable({
  _features,
  _rowModels: {
    filteredRowModel: createFilteredRowModel(filterFns), // now called "create*RowModel()" with a Fns parameter
    sortedRowModel: createSortedRowModel(sortFns),
    paginatedRowModel: createPaginatedRowModel(),
  },
  columns,
  data,
})

State Management Changes

Accessing State

In v8, you accessed state via table.getState(). In v9, state is accessed differently:

tsx

// v8
const state = table.getState()
const { sorting, pagination } = table.getState()

// v9 - via the store (full state)
const fullState = table.store.state
const { sorting, pagination } = table.store.state

// v9 - via table.state (selected state from your selector)
const table = useTable(options, (state) => ({
  sorting: state.sorting,
  pagination: state.pagination,
}))
// Now table.state only contains sorting and pagination
const { sorting, pagination } = table.state

Optimized Rendering with `table.Subscribe`

The biggest state management improvement is table.Subscribe, which enables fine-grained reactivity:

tsx

function MyTable() {
  const table = useTable({
    _features,
    _rowModels: { /* ... */ },
    columns,
    data,
  })

  return (
    <table.Subscribe
      selector={(state) => ({
        sorting: state.sorting,
        pagination: state.pagination,
      })}
    >
      {({ sorting, pagination }) => (
        // This only re-renders when sorting or pagination changes
        <div>
          <table></table>
          <div>Page {pagination.pageIndex + 1}</div>
        </div>
      )}
    </table.Subscribe>
  )
}

Opt-Out: v8-Style Full State Subscription

If you want v8-style behavior where the component re-renders on any state change, pass state => state as the selector:

tsx

// Re-renders on ANY state change (like v8)
const table = useTable(
  {
    _features,
    _rowModels: { /* ... */ },
    columns,
    data,
  },
  (state) => state, // Subscribe to entire state
)

// table.state now contains the full state
const { sorting, pagination, columnFilters } = table.state

Controlled State

Controlled state patterns work similarly to v8:

tsx

const [sorting, setSorting] = useState<SortingState>([])
const [pagination, setPagination] = useState<PaginationState>({
  pageIndex: 0,
  pageSize: 10,
})

const table = useTable({
  _features,
  _rowModels: { /* ... */ },
  columns,
  data,
  state: {
    sorting,
    pagination,
  },
  onSortingChange: setSorting,
  onPaginationChange: setPagination,
})

Column Helper Changes

The createColumnHelper function now requires a TFeatures type parameter in addition to TData:

tsx

// v8
import { createColumnHelper } from '@tanstack/react-table'

const columnHelper = createColumnHelper<Person>()

// v9
import { createColumnHelper, tableFeatures, rowSortingFeature } from '@tanstack/react-table'

const _features = tableFeatures({ rowSortingFeature })
const columnHelper = createColumnHelper<typeof _features, Person>()

New `columns()` Helper Method

v9 adds a columns() helper for better type inference when wrapping column arrays. In v8, TValue wasn't always type-safe—especially with group columns, where nested column types could be lost or widened. The columns() helper uses variadic tuple types to preserve each column's individual TValue type, so info.getValue() and cell renderers stay correctly typed throughout nested structures:

tsx

const columnHelper = createColumnHelper<typeof _features, Person>()

// Wrap your columns array for better type inference
const columns = columnHelper.columns([
  columnHelper.accessor('firstName', {
    header: 'First Name',
    cell: (info) => info.getValue(),
  }),
  columnHelper.accessor('lastName', {
    id: 'lastName',
    header: () => <span>Last Name</span>,
    cell: (info) => <i>{info.getValue()}</i>,
  }),
  columnHelper.display({
    id: 'actions',
    header: 'Actions',
    cell: (info) => <button>Edit</button>,
  }),
])

Using with `createTableHook`

When using createTableHook, you get a pre-bound createAppColumnHelper that only requires TData:

tsx

const { useAppTable, createAppColumnHelper } = createTableHook({
  _features: tableFeatures({ rowSortingFeature }),
  _rowModels: { /* ... */ },
})

// TFeatures is already bound — only need TData!
const columnHelper = createAppColumnHelper<Person>()

Rendering Changes

`flexRender` Function

The flexRender function still exists and works the same way:

tsx

import { flexRender } from '@tanstack/react-table'

// Still works in v9
{flexRender(cell.column.columnDef.cell, cell.getContext())}
{flexRender(header.column.columnDef.header, header.getContext())}

New `<table.FlexRender />` Component

v9 adds a cleaner component-based approach attached to the table instance:

tsx

const table = useTable({ /* ... */ })

// Instead of:
{flexRender(header.column.columnDef.header, header.getContext())}

// You can use:
<table.FlexRender header={header} />
<table.FlexRender cell={cell} />
<table.FlexRender footer={footer} />

This should be way more convenient and type-safe than the old flexRender function!

Standalone `<FlexRender />` Component

There's also a standalone component you can import:

tsx

import { FlexRender } from '@tanstack/react-table'

<FlexRender header={header} />
<FlexRender cell={cell} />
<FlexRender footer={footer} />

The `tableOptions()` Utility

The tableOptions() helper provides type-safe composition of table options. It's useful for creating reusable partial configurations that can be spread into your table setup.

Basic Usage

tsx

import { tableOptions, tableFeatures, rowSortingFeature } from '@tanstack/react-table'

// Create a reusable options object with features pre-configured
const baseOptions = tableOptions({
  _features: tableFeatures({ rowSortingFeature }),
  debugTable: process.env.NODE_ENV === 'development',
})

// Use in your table — columns, data, and other options can be added
const table = useTable({
  ...baseOptions,
  columns,
  data,
  _rowModels: {},
})

Composing Partial Options

tableOptions() allows you to omit certain required fields (like data, columns, or _features) when creating partial configurations:

tsx

// Partial options without data or columns
const featureOptions = tableOptions({
  _features: tableFeatures({
    rowSortingFeature,
    columnFilteringFeature,
  }),
  _rowModels: {
    sortedRowModel: createSortedRowModel(sortFns),
    filteredRowModel: createFilteredRowModel(filterFns),
  },
})

// Another partial without _features (inherits from spread)
const paginationDefaults = tableOptions({
  _rowModels: {
    paginatedRowModel: createPaginatedRowModel(),
  },
  initialState: {
    pagination: { pageIndex: 0, pageSize: 25 },
  },
})

// Combine them
const table = useTable({
  ...featureOptions,
  ...paginationDefaults,
  columns,
  data,
})

Using with `createTableHook`

tableOptions() pairs well with createTableHook for building composable table factories:

tsx

const sharedOptions = tableOptions({
  _features: tableFeatures({ rowSortingFeature, rowPaginationFeature }),
  _rowModels: {
    sortedRowModel: createSortedRowModel(sortFns),
    paginatedRowModel: createPaginatedRowModel(),
  },
})

const { useAppTable } = createTableHook(sharedOptions)

`createTableHook`: Composable Table Patterns

This is an advanced, optional feature. You don't need to use createTableHook—useTable is sufficient for most use cases. If you're familiar with TanStack Form's createFormHook, createTableHook works almost the same way: it creates a custom hook with pre-bound configuration that you can reuse across many tables.

For applications with multiple tables sharing the same configuration, createTableHook lets you define features, row models, and reusable components once:

tsx

// hooks/table.ts
import {
  createTableHook,
  tableFeatures,
  columnFilteringFeature,
  rowSortingFeature,
  rowPaginationFeature,
  createFilteredRowModel,
  createSortedRowModel,
  createPaginatedRowModel,
  filterFns,
  sortFns,
} from '@tanstack/react-table'

// Import your reusable components
import { PaginationControls, SortIndicator, TextCell } from './components'

export const {
  useAppTable,
  createAppColumnHelper,
  useTableContext,
  useCellContext,
  useHeaderContext,
} = createTableHook({
  // Features defined once
  _features: tableFeatures({
    columnFilteringFeature,
    rowSortingFeature,
    rowPaginationFeature,
  }),

  // Row models defined once
  _rowModels: {
    filteredRowModel: createFilteredRowModel(filterFns),
    sortedRowModel: createSortedRowModel(sortFns),
    paginatedRowModel: createPaginatedRowModel(),
  },

  // Default table options
  debugTable: process.env.NODE_ENV === 'development',

  // Register reusable components
  tableComponents: { PaginationControls },
  cellComponents: { TextCell },
  headerComponents: { SortIndicator },
})

Using `useAppTable`

tsx

// features/users.tsx
import { useAppTable, createAppColumnHelper } from './hooks/table'

const columnHelper = createAppColumnHelper<Person>()

const columns = columnHelper.columns([
  columnHelper.accessor('firstName', {
    header: 'First Name',
    cell: ({ cell }) => <cell.TextCell />, // Pre-bound component!
  }),
])

function UsersTable({ data }: { data: Person[] }) {
  const table = useAppTable({
    columns,
    data,
    // _features and _rowModels already configured!
  })

  return (
    <table.AppTable>
      <table>
        <thead>
          {table.getHeaderGroups().map((headerGroup) => (
            <tr key={headerGroup.id}>
              {headerGroup.headers.map((h) => (
                <table.AppHeader header={h} key={h.id}>
                  {(header) => (
                    <th>
                      <header.FlexRender />
                      <header.SortIndicator />
                    </th>
                  )}
                </table.AppHeader>
              ))}
            </tr>
          ))}
        </thead>
        <tbody>
          {table.getRowModel().rows.map((row) => (
            <tr key={row.id}>
              {row.getAllCells().map((c) => (
                <table.AppCell cell={c} key={c.id}>
                  {(cell) => (
                    <td>
                      <cell.FlexRender />
                    </td>
                  )}
                </table.AppCell>
              ))}
            </tr>
          ))}
        </tbody>
      </table>
      <table.PaginationControls />
    </table.AppTable>
  )
}

Context Hooks for Components

Components registered via createTableHook can access their context:

tsx

// components/SortIndicator.tsx
import { useHeaderContext } from './hooks/table'

export function SortIndicator() {
  const header = useHeaderContext()
  const sorted = header.column.getIsSorted()
  
  if (!sorted) return null
  return sorted === 'asc' ? ' 🔼' : ' 🔽'
}

// components/TextCell.tsx
import { useCellContext } from './hooks/table'

export function TextCell() {
  const cell = useCellContext()
  return <span>{cell.getValue() as string}</span>
}

// components/PaginationControls.tsx
import { useTableContext } from './hooks/table'

export function PaginationControls() {
  const table = useTableContext()
  
  return (
    <table.Subscribe selector={(s) => s.pagination}>
      {(pagination) => (
        <div>
          <button onClick={() => table.previousPage()}>Previous</button>
          <span>Page {pagination.pageIndex + 1}</span>
          <button onClick={() => table.nextPage()}>Next</button>
        </div>
      )}
    </table.Subscribe>
  )
}

Other Breaking Changes

Column Pinning Option Split

The enablePinning option has been split into separate options:

tsx

// v8
enablePinning: true

// v9
enableColumnPinning: true
enableRowPinning: true

Removed Internal APIs

All internal APIs prefixed with _ have been removed. If you were using any of these, use their public equivalents:

Removed: table._getPinnedRows()
Removed: table._getFacetedRowModel()
Removed: table._getFacetedMinMaxValues()
Removed: table._getFacetedUniqueValues()

Column Sizing vs. Column Resizing Split

In v8, column sizing and resizing were combined in a single feature. In v9, they've been split into separate features for better tree-shaking.

v8	v9
`ColumnSizing` (combined feature)	`columnSizingFeature` + `columnResizingFeature`
`columnSizingInfo` state	`columnResizing` state
`setColumnSizingInfo()`	`setColumnResizing()`
`onColumnSizingInfoChange` option	`onColumnResizingChange` option

If you only need column sizing (fixed widths) without interactive resizing, you can import just columnSizingFeature. If you need drag-to-resize functionality, import both:

tsx

import { columnSizingFeature, columnResizingFeature } from '@tanstack/react-table'

const _features = tableFeatures({
  columnSizingFeature,
  columnResizingFeature, // Only if you need interactive resizing
})

Sorting API Renames

Sorting-related APIs have been renamed for consistency:

v8	v9
`sortingFn` (column def option)	`sortFn`
`column.getSortingFn()`	`column.getSortFn()`
`column.getAutoSortingFn()`	`column.getAutoSortFn()`
`SortingFn` type	`SortFn` type
`SortingFns` interface	`SortFns` interface
`sortingFns` (built-in functions)	`sortFns`

Update your column definitions:

tsx

// v8
const columns = [
  {
    accessorKey: 'name',
    sortingFn: 'alphanumeric', // or custom function
  },
]

// v9
const columns = [
  {
    accessorKey: 'name',
    sortFn: 'alphanumeric', // or custom function
  },
]

Row API Changes

Some row APIs have changed from private to public:

v8	v9
`row._getAllCellsByColumnId()` (private)	`row.getAllCellsByColumnId()` (public)

If you were accessing this internal API, you can now use it without the underscore prefix.

TypeScript Changes Summary

Type Generics

Most types now require a TFeatures parameter:

tsx

// v8
type Column<TData>
type ColumnDef<TData>
type Table<TData>
type Row<TData>
type Cell<TData, TValue>

// v9
type Column<TFeatures, TData, TValue>
type ColumnDef<TFeatures, TData, TValue>
type Table<TFeatures, TData>
type Row<TFeatures, TData>
type Cell<TFeatures, TData, TValue>

Using `typeof _features`

The easiest way to get the TFeatures type is with typeof:

tsx

const _features = tableFeatures({
  rowSortingFeature,
  columnFilteringFeature,
})

// Use typeof to get the type
type MyFeatures = typeof _features

const columns: ColumnDef<typeof _features, Person>[] = [...]

function Filter({ column }: { column: Column<typeof _features, Person, unknown> }) {
  // ...
}

Using `StockFeatures`

If using stockFeatures with useTable, use the StockFeatures type:

tsx

import type { StockFeatures, ColumnDef } from '@tanstack/react-table'

const columns: ColumnDef<StockFeatures, Person>[] = [...]

`ColumnMeta` Generic Change

If you're using module augmentation to extend ColumnMeta, note that it now requires a TFeatures parameter:

tsx

// v8
declare module '@tanstack/react-table' {
  interface ColumnMeta<TData, TValue> {
    customProperty: string
  }
}

// v9 - TFeatures is now the first parameter
declare module '@tanstack/react-table' {
  interface ColumnMeta<TFeatures, TData, TValue> {
    customProperty: string
  }
}

`RowData` Type Restriction

The RowData type is now more restrictive:

tsx

// v8 - very permissive
type RowData = unknown | object | any[]

// v9 - must be a record or array
type RowData = Record<string, any> | Array<any>

This change improves type safety. If you were passing unusual data types, ensure your data conforms to Record<string, any> or Array<any>.

Migration Checklist

Examples

Check out these examples to see v9 patterns in action:

Basic useTable - Simple table with the new useTable hook
Basic useLegacyTable - Migration example using useLegacyTable
Basic useAppTable - Using createTableHook
Filters - Filtering with the new API
Sorting - Sorting with the new API
Composable Tables - Advanced createTableHook patterns

What's New in TanStack Table v9

1. Tree-shaking

2. State Management

3. Composability

The Good News: Most Upgrades Are Opt-in

Quick Legacy Migration

Core Breaking Changes

Hook Rename

New Required Options: _features and _rowModels

The _features Option

Importing Individual Features

Using stockFeatures for v8-like Behavior

Available Features

The _rowModels Option

Migration Mapping

Key Change: Row Model Functions Now Accept Parameters

Full Migration Example

State Management Changes

Accessing State

Optimized Rendering with table.Subscribe

Opt-Out: v8-Style Full State Subscription

Controlled State

Column Helper Changes

New columns() Helper Method

Using with createTableHook

Rendering Changes

flexRender Function

New <table.FlexRender /> Component

Standalone <FlexRender /> Component

The tableOptions() Utility

Basic Usage

Composing Partial Options

Using with createTableHook

createTableHook: Composable Table Patterns

Using useAppTable

Context Hooks for Components

Other Breaking Changes

Column Pinning Option Split

Removed Internal APIs

Column Sizing vs. Column Resizing Split

Sorting API Renames

Row API Changes

TypeScript Changes Summary

Type Generics

Using typeof _features

Using StockFeatures

ColumnMeta Generic Change

RowData Type Restriction

Migration Checklist

Examples

New Required Options: `_features` and `_rowModels`

The `_features` Option

Using `stockFeatures` for v8-like Behavior

The `_rowModels` Option

Optimized Rendering with `table.Subscribe`

New `columns()` Helper Method

Using with `createTableHook`

`flexRender` Function

New `<table.FlexRender />` Component

Standalone `<FlexRender />` Component

The `tableOptions()` Utility

Using with `createTableHook`

`createTableHook`: Composable Table Patterns

Using `useAppTable`

Using `typeof _features`

Using `StockFeatures`

`ColumnMeta` Generic Change

`RowData` Type Restriction