Changelog - ByosUI

DataGridCellSelection gains apiRef with focusCell(rowId, columnId, { edit }), landing cell focus, DOM focus and aria-activedescendant together on rows still mounting - Docs.
Fill handle looks via tableLayout.cellFillHandleVariant: the default solid dot, an Excel-style square, or a Sheets-style hollow ring on the selection corner - Docs.
tableClassNames.rowPinned, rowCreate and cellFillHandle override the pinned-row chrome, the add-row affordance and the fill handle - Docs.
New getDataGridVisibleSelectedCellCount helper keeps a selection count consistent with the painted range - Docs.
The virtual layout renders onRowCreate and appendRow, matching the standard body - Docs.
onCellSelectionChange delivers a resolved selection snapshot: the focused cell, every bound, the active bound and the visible cell count - Docs.
Per-row editability: cellEdit.editable accepts a function of the row, locking rows across paste, fill, clear and the editors - Docs.
New invertDataGridCellsChange helper derives the undo batch from any onCellsChange payload - .
The imperative api gains clearSelection and scrollToCell, and the add-row label is localizable via rowCreateLabel - .
Copy and cut now work from the keyboard on every platform: Cmd/Ctrl+C and X write through the async clipboard API, since browsers never fire a native copy for a focused grid - .
Opt-in single-click editing via tableLayout.cellEditMode: "click"; double-click stays the default - .
The selection edge beside a pinned column is painted once, inside the cell, so browser zoom and fractional widths can no longer double it into a 2px blur - .
In-cell controls follow the two-step gesture: the first click on an unfocused cell only focuses it, the second activates the select, date or combobox, matching editor cells - .
Pinned columns now show the row hover and selected tints, premixed over their opaque background - .
Selected rows no longer draw the 2px start bar; the checkbox and row tint carry the state - .
i18n on DataGrid replaces every built-in string in one place, menu items and aria labels included, with function labels for interpolated copy - .
Opt-in column virtualization for DataGridTableVirtual: only the horizontal window of center columns renders, pinned columns stay mounted, with controlled scrollToColumnIndex - .
onCellsCopy reports every clipboard write with the copied grid and a cut flag, for toast confirmations - .
tableLayout.cellEditEnterAdvance restores the Sheets move-down; an Enter commit now keeps focus on the edited cell by default - .
data-cell-control marks a custom widget whose active surface is wider than its buttons, so a press anywhere on it follows the two-step gesture - .
3 new examples: a localized grid with an EN / DE / JA switch, a 36-column virtualized matrix, and a server side paginated grid with a debounced search and a status filter, taking the Data Grid to 34 examples per base - .
Server side pagination is documented end to end: pass the server total twice, as rowCount on useTable for the page buttons and as recordCount on DataGrid for the info text - .

DataGridCellSelection: Sheets-style chrome, with a lighter tint, a solid perimeter that tracks the drag, an unfilled anchor cell and a dashed fill marquee - Preview.
DataGridCellSelection: the perimeter's top line is clamped inside the first row, so a sticky header cannot paint over it - Preview.
DataGridCellSelection: the perimeter survives the first and last column and the last row, and the fill handle stays inside the grid - Preview.
DataGridCellSelection: the built-in editor sits exactly on the cell, so opening it no longer grows the row by 2px, and it is named after its column - Preview.
DataGridCellSelection: copy, cut, clear, paste and fill act only on visible rows, so a page-boundary range cannot write hidden ones - Docs.
DataGridCellSelection: a fill across columns runs the target's parse and reports rejections, like a paste - Docs.
DataGridCellSelection: Shift and arrows still extend a range after a modifier click on a control cell - Docs.
DataGridCellSelection: Escape on an in-cell control returns focus to the grid, and AltGr chords type instead of selecting all - Docs.
DataGridTable: columnsResizeMode: "onChange" writes widths to the table element, so a drag costs no React render per move - Docs.
DataGridTable: pinned header cells stay put under a sticky header, so the corner no longer scrolls away - .
DataGridTable: the resize handle is its own data-slot span, so an end-aligned header cannot swallow the menu click - .
DataGridTable: aria-rowcount counts pinned extras and aria-multiselectable follows the selection mode - .
DataGridTableVirtual: rows and the header row are memoized, so a scroll frame renders only what enters the window - .
DataGrid: meta.autoSize columns reflow with the container down to minSize, and leave a dragged width alone - .
DataGrid: onRowCreate hands focus to the grid when a draft replaces it, and its click survives a multi-cell selection - .
DataGridPagination: the page-size select no longer clips 3-digit sizes, and page buttons carry accessible names - .
DataGridTableRowPin: bottom-pinned rows cast their boundary shadow upward - .
Combobox: chips in the spreadsheet editing example are outline badges with an avatar and a remove button - .