feat: per table table and column meta

docs/config.json

@@ -84,7 +84,8 @@
         { "label": "Cells", "to": "guide/cells" },
         { "label": "Header Groups", "to": "guide/header-groups" },
         { "label": "Headers", "to": "guide/headers" },
-        { "label": "Columns", "to": "guide/columns" }
+        { "label": "Columns", "to": "guide/columns" },
+        { "label": "Table and Column Meta", "to": "guide/table-and-column-meta" }
       ],
       "frameworks": [
         {

docs/framework/angular/guide/migrating.md

@@ -718,9 +718,22 @@ import type { StockFeatures, ColumnDef } from '@tanstack/angular-table'
 const columns: ColumnDef<StockFeatures, Person>[] = [...]
 ```
 
-### `ColumnMeta` Generic Change
+### `TableMeta`/`ColumnMeta` Typing Changes
 
-If you're using module augmentation to extend `ColumnMeta`, note that it now requires a `TFeatures` parameter.
+No more declaration merging required! (Although it still works if you want to keep using it)
+
+Global declaration merging to extend `TableMeta` or `ColumnMeta` works exactly like it did in v8. The only change you need to make is updating the generics shape: both interfaces now take `TFeatures` as the first type parameter.
+
+Optionally, v9 also adds a new way to declare meta types **per-table** without declaration merging. You can use type-only `tableMeta`/`columnMeta` slots on the `features` option, which only affect tables created with that `features` object:
+
+```ts
+const features = tableFeatures({
+  rowSortingFeature,
+  columnMeta: metaHelper<{ customProperty: string }>(),
+})
+```
+
+See the new [Table and Column Meta Guide](../../../guide/table-and-column-meta) for full details on both approaches.
 
 ### `RowData` Type Restriction
 
@@ -750,7 +763,7 @@ This change improves type safety. If you were passing unusual data types, ensure
 - [ ] Rename `sortingFn` → `sortFn` in column definitions
 - [ ] Split column sizing/resizing: use both `columnSizingFeature` and `columnResizingFeature` if needed
 - [ ] Rename `columnSizingInfo` state → `columnResizing` (and related options)
-- [ ] Update `ColumnMeta` module augmentation to include `TFeatures` generic (if used)
+- [ ] If you use `TableMeta`/`ColumnMeta` declaration merging, add the `TFeatures` generic to your augmentations (optionally, switch to the per-table `tableMeta`/`columnMeta` feature slots)
 - [ ] (Optional) Use `tableOptions()` for composable configurations
 - [ ] (Optional) Use `createTableHook` for reusable table patterns
 

docs/framework/lit/guide/migrating.md

@@ -586,7 +586,11 @@ import type { StockFeatures } from '@tanstack/lit-table'
 type PersonColumn = ColumnDef<StockFeatures, Person>
 ```
 
-### `ColumnMeta` Generic Change
+### `TableMeta`/`ColumnMeta` Typing Changes
+
+No more declaration merging required! (Although it still works if you want to keep using it)
+
+Global declaration merging works exactly like it did in v8. The only change you need to make is updating the generics shape: both interfaces now take `TFeatures` as the first type parameter.
 
 ```ts
 declare module '@tanstack/lit-table' {
@@ -596,6 +600,19 @@ declare module '@tanstack/lit-table' {
 }
 ```
 
+That's all that's required if you want to keep declaring meta types globally.
+
+Optionally, v9 also adds a new way to declare meta types **per-table** without declaration merging. You can use type-only `tableMeta`/`columnMeta` slots on the `features` option, which only affect tables created with that `features` object:
+
+```ts
+const features = tableFeatures({
+  rowSortingFeature,
+  columnMeta: metaHelper<{ align?: 'left' | 'right' }>(),
+})
+```
+
+See the new [Table and Column Meta Guide](../../../guide/table-and-column-meta) for full details on both approaches.
+
 ### `RowData` Type Restriction
 
 Prefer explicit object row types:

docs/framework/preact/guide/migrating.md

@@ -573,9 +573,11 @@ import type { StockFeatures } from '@tanstack/preact-table'
 type PersonColumn = ColumnDef<StockFeatures, Person>
 ```
 
-### `ColumnMeta` Generic Change
+### `TableMeta`/`ColumnMeta` Typing Changes
 
-Module augmentation now includes `TFeatures`:
+No more declaration merging required! (Although it still works if you want to keep using it)
+
+Global declaration merging works exactly like it did in v8. The only change you need to make is updating the generics shape: both interfaces now take `TFeatures` as the first type parameter.
 
 ```tsx
 declare module '@tanstack/preact-table' {
@@ -585,6 +587,19 @@ declare module '@tanstack/preact-table' {
 }
 ```
 
+That's all that's required if you want to keep declaring meta types globally.
+
+Optionally, v9 also adds a new way to declare meta types **per-table** without declaration merging. You can use type-only `tableMeta`/`columnMeta` slots on the `features` option, which only affect tables created with that `features` object:
+
+```tsx
+const features = tableFeatures({
+  rowSortingFeature,
+  columnMeta: metaHelper<{ align?: 'left' | 'right' }>(),
+})
+```
+
+See the new [Table and Column Meta Guide](../../../guide/table-and-column-meta) for full details on both approaches.
+
 ### `RowData` Type Restriction
 
 `RowData` is now constrained to record-like objects or arrays. Prefer object row types such as:

docs/framework/react/guide/migrating.md

@@ -988,9 +988,11 @@ import type { StockFeatures, ColumnDef } from '@tanstack/react-table'
 const columns: ColumnDef<StockFeatures, Person>[] = [...]
 ```
 
-### `ColumnMeta` Generic Change
+### `TableMeta`/`ColumnMeta` Typing Changes
 
-If you're using module augmentation to extend `ColumnMeta`, note that it now requires a `TFeatures` parameter:
+No more declaration merging required! (Although it still works if you want to keep using it)
+
+Global declaration merging to extend `TableMeta` or `ColumnMeta` works exactly like it did in v8. The only change you need to make is updating the generics shape: both interfaces now take `TFeatures` as the first type parameter.
 
 ```tsx
 // v8
@@ -1008,6 +1010,19 @@ declare module '@tanstack/react-table' {
 }
 ```
 
+That's all that's required if you want to keep declaring meta types globally.
+
+Optionally, v9 also adds a new way to declare meta types **per-table** without declaration merging. You can use type-only `tableMeta`/`columnMeta` slots on the `features` option, which only affect tables created with that `features` object:
+
+```tsx
+const features = tableFeatures({
+  rowSortingFeature,
+  columnMeta: metaHelper<{ customProperty: string }>(),
+})
+```
+
+See the new [Table and Column Meta Guide](../../../guide/table-and-column-meta) for full details on both approaches.
+
 ### `RowData` Type Restriction
 
 The `RowData` type is now more restrictive:
@@ -1037,7 +1052,7 @@ This change improves type safety. If you were passing unusual data types, ensure
 - [ ] Rename `sortingFn` → `sortFn` in column definitions
 - [ ] Split column sizing/resizing: use both `columnSizingFeature` and `columnResizingFeature` if needed
 - [ ] Rename `columnSizingInfo` state → `columnResizing` (and related options)
-- [ ] Update `ColumnMeta` module augmentation to include `TFeatures` generic (if used)
+- [ ] If you use `TableMeta`/`ColumnMeta` declaration merging, add the `TFeatures` generic to your augmentations (optionally, switch to the per-table `tableMeta`/`columnMeta` feature slots)
 - [ ] (Optional) Add `table.Subscribe` for render optimizations
 - [ ] (Optional) Subscribe to individual slices via `table.atoms.<slice>` + `useSelector` for the narrowest re-renders
 - [ ] (Optional) Pass writable atoms via the new `atoms` option to own specific state slices externally

docs/framework/solid/guide/migrating.md

@@ -542,7 +542,11 @@ import type { StockFeatures } from '@tanstack/solid-table'
 type PersonColumn = ColumnDef<StockFeatures, Person>
 ```
 
-### `ColumnMeta` Generic Change
+### `TableMeta`/`ColumnMeta` Typing Changes
+
+No more declaration merging required! (Although it still works if you want to keep using it)
+
+Global declaration merging works exactly like it did in v8. The only change you need to make is updating the generics shape: both interfaces now take `TFeatures` as the first type parameter.
 
 ```tsx
 declare module '@tanstack/solid-table' {
@@ -552,6 +556,19 @@ declare module '@tanstack/solid-table' {
 }
 ```
 
+That's all that's required if you want to keep declaring meta types globally.
+
+Optionally, v9 also adds a new way to declare meta types **per-table** without declaration merging. You can use type-only `tableMeta`/`columnMeta` slots on the `features` option, which only affect tables created with that `features` object:
+
+```tsx
+const features = tableFeatures({
+  rowSortingFeature,
+  columnMeta: metaHelper<{ align?: 'left' | 'right' }>(),
+})
+```
+
+See the new [Table and Column Meta Guide](../../../guide/table-and-column-meta) for full details on both approaches.
+
 ### `RowData` Type Restriction
 
 Prefer explicit object row types:

docs/framework/svelte/guide/migrating.md

@@ -621,7 +621,11 @@ import type { StockFeatures } from '@tanstack/svelte-table'
 type PersonColumn = ColumnDef<StockFeatures, Person>
 ```
 
-### `ColumnMeta` Generic Change
+### `TableMeta`/`ColumnMeta` Typing Changes
+
+No more declaration merging required! (Although it still works if you want to keep using it)
+
+Global declaration merging works exactly like it did in v8. The only change you need to make is updating the generics shape: both interfaces now take `TFeatures` as the first type parameter.
 
 ```ts
 declare module '@tanstack/svelte-table' {
@@ -631,6 +635,19 @@ declare module '@tanstack/svelte-table' {
 }
 ```
 
+That's all that's required if you want to keep declaring meta types globally.
+
+Optionally, v9 also adds a new way to declare meta types **per-table** without declaration merging. You can use type-only `tableMeta`/`columnMeta` slots on the `features` option, which only affect tables created with that `features` object:
+
+```ts
+const features = tableFeatures({
+  rowSortingFeature,
+  columnMeta: metaHelper<{ align?: 'left' | 'right' }>(),
+})
+```
+
+See the new [Table and Column Meta Guide](../../../guide/table-and-column-meta) for full details on both approaches.
+
 ### `RowData` Type Restriction
 
 Prefer explicit object row types:

docs/framework/vue/guide/migrating.md

@@ -567,7 +567,11 @@ import type { StockFeatures } from '@tanstack/vue-table'
 type PersonColumn = ColumnDef<StockFeatures, Person>
 ```
 
-### `ColumnMeta` Generic Change
+### `TableMeta`/`ColumnMeta` Typing Changes
+
+No more declaration merging required! (Although it still works if you want to keep using it)
+
+Global declaration merging works exactly like it did in v8. The only change you need to make is updating the generics shape: both interfaces now take `TFeatures` as the first type parameter.
 
 ```ts
 declare module '@tanstack/vue-table' {
@@ -577,6 +581,19 @@ declare module '@tanstack/vue-table' {
 }
 ```
 
+That's all that's required if you want to keep declaring meta types globally.
+
+Optionally, v9 also adds a new way to declare meta types **per-table** without declaration merging. You can use type-only `tableMeta`/`columnMeta` slots on the `features` option, which only affect tables created with that `features` object:
+
+```ts
+const features = tableFeatures({
+  rowSortingFeature,
+  columnMeta: metaHelper<{ align?: 'left' | 'right' }>(),
+})
+```
+
+See the new [Table and Column Meta Guide](../../../guide/table-and-column-meta) for full details on both approaches.
+
 ### `RowData` Type Restriction
 
 Prefer explicit object row types: