unified-storage: fix listModifiedSince in storage_backend.go and enable its tests for both badger and sqlkv

* unified-storage: dont use polling notifier with sqlite in sqlkv

packages/grafana-flamegraph/src/FlameGraph/rendering.ts

@@ -22,7 +22,7 @@ import { getBarColorByDiff, getBarColorByPackage, getBarColorByValue } from './c
 import { CollapseConfig, CollapsedMap, FlameGraphDataContainer, LevelItem } from './dataTransform';
 
 type RenderOptions = {
-  canvasRef: RefObject<HTMLCanvasElement | null>;
+  canvasRef: RefObject<HTMLCanvasElement>;
   data: FlameGraphDataContainer;
   root: LevelItem;
   direction: 'children' | 'parents';
@@ -373,7 +373,7 @@ function useColorFunction(
   );
 }
 
-function useSetupCanvas(canvasRef: RefObject<HTMLCanvasElement | null>, wrapperWidth: number, numberOfLevels: number) {
+function useSetupCanvas(canvasRef: RefObject<HTMLCanvasElement>, wrapperWidth: number, numberOfLevels: number) {
   const [ctx, setCtx] = useState<CanvasRenderingContext2D>();
 
   useEffect(() => {

packages/grafana-ui/src/components/DateTimePickers/TimeRangePicker/hooks.ts

@@ -7,7 +7,7 @@ const CAUGHT_KEYS = ['ArrowUp', 'ArrowDown', 'Home', 'End', 'Enter', 'Tab'];
 
 /** @internal */
 export interface UseListFocusProps {
-  localRef: RefObject<HTMLUListElement | null>;
+  localRef: RefObject<HTMLUListElement>;
   options: TimeOption[];
 }
 

packages/grafana-ui/src/components/Input/utils.ts

@@ -1,7 +1,7 @@
 import { RefObject, useRef } from 'react';
 
-export function useFocus(): [RefObject<HTMLInputElement | null>, () => void] {
-  const ref = useRef<HTMLInputElement | null>(null);
+export function useFocus(): [RefObject<HTMLInputElement>, () => void] {
+  const ref = useRef<HTMLInputElement>(null);
   const setFocus = () => {
     ref.current && ref.current.focus();
   };

packages/grafana-ui/src/components/InteractiveTable/InteractiveTable.mdx

@@ -117,6 +117,44 @@ export const MyComponent = () => {
 };
 ```
 
+### Custom Header Rendering
+
+Column headers can be customized using strings, React elements, or renderer functions. The `header` property accepts any value that matches React Table's `Renderer` type.
+
+**Important:** When using custom header content, prefer inline elements (like `<span>`) over block elements (like `<div>`) to avoid layout issues. Block-level elements can cause extra spacing and alignment problems in table headers because they disrupt the table's inline flow. Use `display: inline-flex` or `display: inline-block` when you need flexbox or block-like behavior.
+
+```tsx
+const columns: Array<Column<TableData>> = [
+  // React element header
+  {
+    id: 'checkbox',
+    header: (
+      <>
+        <label htmlFor="select-all" className="sr-only">
+          Select all rows
+        </label>
+        <Checkbox id="select-all" />
+      </>
+    ),
+    cell: () => <Checkbox aria-label="Select row" />,
+  },
+
+  // Function renderer header
+  {
+    id: 'firstName',
+    header: () => (
+      <span style={{ display: 'inline-flex', alignItems: 'center', gap: '8px' }}>
+        <Icon name="user" size="sm" />
+        <span>First Name</span>
+      </span>
+    ),
+  },
+
+  // String header
+  { id: 'lastName', header: 'Last name' },
+];
+```
+
 ### Custom Cell Rendering
 
 Individual cells can be rendered using custom content dy defining a `cell` property on the column definition.

packages/grafana-ui/src/components/InteractiveTable/InteractiveTable.story.tsx

@@ -3,8 +3,11 @@ import { useCallback, useMemo, useState } from 'react';
 import { CellProps } from 'react-table';
 
 import { LinkButton } from '../Button/Button';
+import { Checkbox } from '../Forms/Checkbox';
 import { Field } from '../Forms/Field';
+import { Icon } from '../Icon/Icon';
 import { Input } from '../Input/Input';
+import { Text } from '../Text/Text';
 
 import { FetchDataArgs, InteractiveTable, InteractiveTableHeaderTooltip } from './InteractiveTable';
 import mdx from './InteractiveTable.mdx';
@@ -297,4 +300,40 @@ export const WithControlledSort: StoryFn<typeof InteractiveTable> = (args) => {
   return <InteractiveTable {...args} data={data} pageSize={15} fetchData={fetchData} />;
 };
 
+export const WithCustomHeader: TableStoryObj = {
+  args: {
+    columns: [
+      // React element header
+      {
+        id: 'checkbox',
+        header: (
+          <>
+            <label htmlFor="select-all" className="sr-only">
+              Select all rows
+            </label>
+            <Checkbox id="select-all" />
+          </>
+        ),
+        cell: () => <Checkbox aria-label="Select row" />,
+      },
+      // Function renderer header
+      {
+        id: 'firstName',
+        header: () => (
+          <span style={{ display: 'inline-flex', alignItems: 'center', gap: '8px' }}>
+            <Icon name="user" size="sm" />
+            <Text element="span">First Name</Text>
+          </span>
+        ),
+        sortType: 'string',
+      },
+      // String header
+      { id: 'lastName', header: 'Last name', sortType: 'string' },
+      { id: 'car', header: 'Car', sortType: 'string' },
+      { id: 'age', header: 'Age', sortType: 'number' },
+    ],
+    data: pageableData.slice(0, 10),
+    getRowId: (r) => r.id,
+  },
+};
 export default meta;

packages/grafana-ui/src/components/InteractiveTable/InteractiveTable.test.tsx

@@ -2,6 +2,9 @@ import { render, screen, within } from '@testing-library/react';
 import userEvent from '@testing-library/user-event';
 import * as React from 'react';
 
+import { Checkbox } from '../Forms/Checkbox';
+import { Icon } from '../Icon/Icon';
+
 import { InteractiveTable } from './InteractiveTable';
 import { Column } from './types';
 
@@ -247,4 +250,104 @@ describe('InteractiveTable', () => {
       expect(fetchData).toHaveBeenCalledWith({ sortBy: [{ id: 'id', desc: false }] });
     });
   });
+
+  describe('custom header rendering', () => {
+    it('should render string headers', () => {
+      const columns: Array<Column<TableData>> = [{ id: 'id', header: 'ID' }];
+      const data: TableData[] = [{ id: '1', value: '1', country: 'Sweden' }];
+      render(<InteractiveTable columns={columns} data={data} getRowId={getRowId} />);
+
+      expect(screen.getByRole('columnheader', { name: 'ID' })).toBeInTheDocument();
+    });
+
+    it('should render React element headers', () => {
+      const columns: Array<Column<TableData>> = [
+        {
+          id: 'checkbox',
+          header: (
+            <>
+              <label htmlFor="select-all" className="sr-only">
+                Select all rows
+              </label>
+              <Checkbox id="select-all" data-testid="header-checkbox" />
+            </>
+          ),
+          cell: () => <Checkbox data-testid="cell-checkbox" aria-label="Select row" />,
+        },
+      ];
+      const data: TableData[] = [{ id: '1', value: '1', country: 'Sweden' }];
+      render(<InteractiveTable columns={columns} data={data} getRowId={getRowId} />);
+
+      expect(screen.getByTestId('header-checkbox')).toBeInTheDocument();
+      expect(screen.getByTestId('cell-checkbox')).toBeInTheDocument();
+      expect(screen.getByLabelText('Select all rows')).toBeInTheDocument();
+      expect(screen.getByLabelText('Select row')).toBeInTheDocument();
+      expect(screen.getByText('Select all rows')).toBeInTheDocument();
+    });
+
+    it('should render function renderer headers', () => {
+      const columns: Array<Column<TableData>> = [
+        {
+          id: 'firstName',
+          header: () => (
+            <span style={{ display: 'inline-flex', alignItems: 'center', gap: '8px' }}>
+              <Icon name="user" size="sm" data-testid="header-icon" />
+              <span>First Name</span>
+            </span>
+          ),
+          sortType: 'string',
+        },
+      ];
+      const data: TableData[] = [{ id: '1', value: '1', country: 'Sweden' }];
+      render(<InteractiveTable columns={columns} data={data} getRowId={getRowId} />);
+
+      expect(screen.getByTestId('header-icon')).toBeInTheDocument();
+      expect(screen.getByRole('columnheader', { name: /first name/i })).toBeInTheDocument();
+    });
+
+    it('should render all header types together', () => {
+      const columns: Array<Column<TableData>> = [
+        {
+          id: 'checkbox',
+          header: (
+            <>
+              <label htmlFor="select-all" className="sr-only">
+                Select all rows
+              </label>
+              <Checkbox id="select-all" data-testid="header-checkbox" />
+            </>
+          ),
+          cell: () => <Checkbox aria-label="Select row" />,
+        },
+        {
+          id: 'id',
+          header: () => (
+            <span style={{ display: 'inline-flex', alignItems: 'center', gap: '8px' }}>
+              <Icon name="user" size="sm" data-testid="header-icon" />
+              <span>ID</span>
+            </span>
+          ),
+          sortType: 'string',
+        },
+        { id: 'country', header: 'Country', sortType: 'string' },
+        { id: 'value', header: 'Value' },
+      ];
+      const data: TableData[] = [
+        { id: '1', value: 'Value 1', country: 'Sweden' },
+        { id: '2', value: 'Value 2', country: 'Norway' },
+      ];
+      render(<InteractiveTable columns={columns} data={data} getRowId={getRowId} />);
+
+      expect(screen.getByTestId('header-checkbox')).toBeInTheDocument();
+      expect(screen.getByTestId('header-icon')).toBeInTheDocument();
+      expect(screen.getByRole('columnheader', { name: 'Country' })).toBeInTheDocument();
+      expect(screen.getByRole('columnheader', { name: 'Value' })).toBeInTheDocument();
+
+      // Verify data is rendered
+      expect(screen.getByText('Sweden')).toBeInTheDocument();
+      expect(screen.getByText('Norway')).toBeInTheDocument();
+      expect(screen.getByText('Value 1')).toBeInTheDocument();
+      expect(screen.getByText('Value 2')).toBeInTheDocument();
+    });
+  });
 });

packages/grafana-ui/src/components/InteractiveTable/types.ts

@@ -1,5 +1,5 @@
 import { ReactNode } from 'react';
-import { CellProps, DefaultSortTypes, IdType, SortByFn } from 'react-table';
+import { CellProps, DefaultSortTypes, HeaderProps, IdType, Renderer, SortByFn } from 'react-table';
 
 export interface Column<TableData extends object> {
   /**
@@ -11,9 +11,9 @@ export interface Column<TableData extends object> {
    */
   cell?: (props: CellProps<TableData>) => ReactNode;
   /**
-   * Header name. if `undefined` the header will be empty. Useful for action columns.
+   * Header name. Can be a string, renderer function, or undefined. If `undefined` the header will be empty. Useful for action columns.
    */
-  header?: string;
+  header?: Renderer<HeaderProps<TableData>>;
   /**
    * Column sort type. If `undefined` the column will not be sortable.
    * */

packages/grafana-ui/src/components/Menu/hooks.ts

@@ -6,7 +6,7 @@ const UNFOCUSED = -1;
 
 /** @internal */
 export interface UseMenuFocusProps {
-  localRef: RefObject<HTMLDivElement | null>;
+  localRef: RefObject<HTMLDivElement>;
   isMenuOpen?: boolean;
   close?: () => void;
   onOpen?: (focusOnItem: (itemId: number) => void) => void;

packages/grafana-ui/src/components/ScrollContainer/ScrollContainer.tsx

@@ -22,7 +22,7 @@ interface Props extends Omit<BoxProps, 'display' | 'direction' | 'element' | 'fl
  *
  * https://developers.grafana.com/ui/latest/index.html?path=/docs/layout-scrollcontainer--docs
  */
-export const ScrollContainer = forwardRef<HTMLDivElement | null, PropsWithChildren<Props>>(
+export const ScrollContainer = forwardRef<HTMLDivElement, PropsWithChildren<Props>>(
   (
     {
       children,

packages/grafana-ui/src/components/Table/TableNG/components/TableCellTooltip.tsx

@@ -20,7 +20,7 @@ export interface TableCellTooltipProps {
   field: Field;
   getActions: (field: Field, rowIdx: number) => ActionModel[];
   getTextColorForBackground: (bgColor: string) => string;
-  gridRef: RefObject<DataGridHandle | null>;
+  gridRef: RefObject<DataGridHandle>;
   height: number;
   placement?: TableCellTooltipPlacement;
   renderer: TableCellRenderer;

packages/grafana-ui/src/components/Table/TableNG/hooks.ts

@@ -463,7 +463,7 @@ export function useColumnResize(
   return dataGridResizeHandler;
 }
 
-export function useScrollbarWidth(ref: RefObject<DataGridHandle | null>, height: number) {
+export function useScrollbarWidth(ref: RefObject<DataGridHandle>, height: number) {
   const [scrollbarWidth, setScrollbarWidth] = useState(0);
 
   useLayoutEffect(() => {

packages/grafana-ui/src/components/Table/TableRT/Table.tsx

@@ -135,7 +135,7 @@ export const Table = memo((props: Props) => {
   // `useTableStateReducer`, which is needed to construct options for `useTable` (the hook that returns
   // `toggleAllRowsExpanded`), and if we used a variable, that variable would be undefined at the time
   // we initialize `useTableStateReducer`.
-  const toggleAllRowsExpandedRef = useRef<((value?: boolean) => void) | null>(null);
+  const toggleAllRowsExpandedRef = useRef<(value?: boolean) => void>();
 
   // Internal react table state reducer
   const stateReducer = useTableStateReducer({

packages/grafana-ui/src/components/Table/hooks.ts

@@ -14,8 +14,8 @@ import { GrafanaTableState } from './types';
   Select the scrollbar element from the VariableSizeList scope
  */
 export function useFixScrollbarContainer(
-  variableSizeListScrollbarRef: React.RefObject<HTMLDivElement | null>,
-  tableDivRef: React.RefObject<HTMLDivElement | null>
+  variableSizeListScrollbarRef: React.RefObject<HTMLDivElement>,
+  tableDivRef: React.RefObject<HTMLDivElement>
 ) {
   useEffect(() => {
     if (variableSizeListScrollbarRef.current && tableDivRef.current) {
@@ -43,7 +43,7 @@ export function useFixScrollbarContainer(
  */
 export function useResetVariableListSizeCache(
   extendedState: GrafanaTableState,
-  listRef: React.RefObject<VariableSizeList | null>,
+  listRef: React.RefObject<VariableSizeList>,
   data: DataFrame,
   hasUniqueId: boolean
 ) {

packages/grafana-ui/src/components/uPlot/geometries/EventsCanvas.tsx

@@ -19,7 +19,7 @@ interface EventsCanvasProps {
 }
 
 export function EventsCanvas({ id, events, renderEventMarker, mapEventToXYCoords, config }: EventsCanvasProps) {
-  const plotInstance = useRef<uPlot | null>(null);
+  const plotInstance = useRef<uPlot>();
   // render token required to re-render annotation markers. Rendering lines happens in uPlot and the props do not change
   // so we need to force the re-render when the draw hook was performed by uPlot
   const [renderToken, setRenderToken] = useState(0);

packages/grafana-ui/src/components/uPlot/plugins/TooltipPlugin2.tsx

@@ -140,7 +140,7 @@ export const TooltipPlugin2 = ({
 
   const [{ plot, isHovering, isPinned, contents, style, dismiss }, setState] = useReducer(mergeState, null, initState);
 
-  const sizeRef = useRef<TooltipContainerSize | null>(null);
+  const sizeRef = useRef<TooltipContainerSize>();
   const styles = useStyles2(getStyles, maxWidth);
 
   const renderRef = useRef(render);

packages/grafana-ui/src/graveyard/GraphNG/GraphNG.tsx

@@ -96,7 +96,7 @@ export interface GraphNGState {
 export class GraphNG extends Component<GraphNGProps, GraphNGState> {
   static contextType = PanelContextRoot;
   panelContext: PanelContext = {} as PanelContext;
-  private plotInstance: React.RefObject<uPlot | null>;
+  private plotInstance: React.RefObject<uPlot>;
 
   private subscription = new Subscription();
 

pkg/storage/unified/resource/eventstore.go

@@ -184,9 +184,9 @@ func (n *eventStore) Get(ctx context.Context, key EventKey) (Event, error) {
 }
 
 // ListSince returns a sequence of events since the given resource version.
-func (n *eventStore) ListKeysSince(ctx context.Context, sinceRV int64) iter.Seq2[string, error] {
+func (n *eventStore) ListKeysSince(ctx context.Context, sinceRV int64, sortOrder SortOrder) iter.Seq2[string, error] {
 	opts := ListOptions{
-		Sort:     SortOrderAsc,
+		Sort:     sortOrder,
 		StartKey: fmt.Sprintf("%d", sinceRV),
 	}
 	return func(yield func(string, error) bool) {
@@ -202,9 +202,9 @@ func (n *eventStore) ListKeysSince(ctx context.Context, sinceRV int64) iter.Seq2
 	}
 }
 
-func (n *eventStore) ListSince(ctx context.Context, sinceRV int64) iter.Seq2[Event, error] {
+func (n *eventStore) ListSince(ctx context.Context, sinceRV int64, sortOrder SortOrder) iter.Seq2[Event, error] {
 	return func(yield func(Event, error) bool) {
-		for evtKey, err := range n.ListKeysSince(ctx, sinceRV) {
+		for evtKey, err := range n.ListKeysSince(ctx, sinceRV, sortOrder) {
 			if err != nil {
 				yield(Event{}, err)
 				return

pkg/storage/unified/resource/eventstore_test.go

@@ -369,7 +369,7 @@ func testEventStoreListKeysSince(t *testing.T, ctx context.Context, store *event
 
 	// List events since RV 1500 (should get events with RV 2000 and 3000)
 	retrievedEvents := make([]string, 0, 2)
-	for eventKey, err := range store.ListKeysSince(ctx, 1500) {
+	for eventKey, err := range store.ListKeysSince(ctx, 1500, SortOrderAsc) {
 		require.NoError(t, err)
 		retrievedEvents = append(retrievedEvents, eventKey)
 	}
@@ -429,7 +429,7 @@ func testEventStoreListSince(t *testing.T, ctx context.Context, store *eventStor
 
 	// List events since RV 1500 (should get events with RV 2000 and 3000)
 	retrievedEvents := make([]Event, 0, 2)
-	for event, err := range store.ListSince(ctx, 1500) {
+	for event, err := range store.ListSince(ctx, 1500, SortOrderAsc) {
 		require.NoError(t, err)
 		retrievedEvents = append(retrievedEvents, event)
 	}
@@ -453,7 +453,7 @@ func TestEventStore_ListSince_Empty(t *testing.T) {
 func testEventStoreListSinceEmpty(t *testing.T, ctx context.Context, store *eventStore) {
 	// List events when store is empty
 	retrievedEvents := make([]Event, 0)
-	for event, err := range store.ListSince(ctx, 0) {
+	for event, err := range store.ListSince(ctx, 0, SortOrderAsc) {
 		require.NoError(t, err)
 		retrievedEvents = append(retrievedEvents, event)
 	}
@@ -825,7 +825,7 @@ func testListKeysSinceWithSnowflakeTime(t *testing.T, ctx context.Context, store
 	// List events since 90 minutes ago using subtractDurationFromSnowflake
 	sinceRV := subtractDurationFromSnowflake(snowflakeFromTime(now), 90*time.Minute)
 	retrievedEvents := make([]string, 0)
-	for eventKey, err := range store.ListKeysSince(ctx, sinceRV) {
+	for eventKey, err := range store.ListKeysSince(ctx, sinceRV, SortOrderAsc) {
 		require.NoError(t, err)
 		retrievedEvents = append(retrievedEvents, eventKey)
 	}
@@ -842,7 +842,7 @@ func testListKeysSinceWithSnowflakeTime(t *testing.T, ctx context.Context, store
 	// List events since 30 minutes ago using subtractDurationFromSnowflake
 	sinceRV = subtractDurationFromSnowflake(snowflakeFromTime(now), 30*time.Minute)
 	retrievedEvents = make([]string, 0)
-	for eventKey, err := range store.ListKeysSince(ctx, sinceRV) {
+	for eventKey, err := range store.ListKeysSince(ctx, sinceRV, SortOrderAsc) {
 		require.NoError(t, err)
 		retrievedEvents = append(retrievedEvents, eventKey)
 	}

pkg/storage/unified/resource/notifier.go

@@ -19,13 +19,18 @@ const (
 	defaultBufferSize     = 10000
 )
 
-type notifier struct {
+type notifier interface {
+	Watch(context.Context, watchOptions) <-chan Event
+}
+
+type pollingNotifier struct {
 	eventStore *eventStore
 	log        logging.Logger
 }
 
 type notifierOptions struct {
-	log logging.Logger
+	log                logging.Logger
+	useChannelNotifier bool
 }
 
 type watchOptions struct {
@@ -44,15 +49,26 @@ func defaultWatchOptions() watchOptions {
 	}
 }
 
-func newNotifier(eventStore *eventStore, opts notifierOptions) *notifier {
+func newNotifier(eventStore *eventStore, opts notifierOptions) notifier {
 	if opts.log == nil {
 		opts.log = &logging.NoOpLogger{}
 	}
-	return &notifier{eventStore: eventStore, log: opts.log}
+
+	if opts.useChannelNotifier {
+		return &channelNotifier{}
+	}
+
+	return &pollingNotifier{eventStore: eventStore, log: opts.log}
+}
+
+type channelNotifier struct{}
+
+func (cn *channelNotifier) Watch(ctx context.Context, opts watchOptions) <-chan Event {
+	return nil
 }
 
 // Return the last resource version from the event store
-func (n *notifier) lastEventResourceVersion(ctx context.Context) (int64, error) {
+func (n *pollingNotifier) lastEventResourceVersion(ctx context.Context) (int64, error) {
 	e, err := n.eventStore.LastEventKey(ctx)
 	if err != nil {
 		return 0, err
@@ -60,11 +76,11 @@ func (n *notifier) lastEventResourceVersion(ctx context.Context) (int64, error)
 	return e.ResourceVersion, nil
 }
 
-func (n *notifier) cacheKey(evt Event) string {
+func (n *pollingNotifier) cacheKey(evt Event) string {
 	return fmt.Sprintf("%s~%s~%s~%s~%d", evt.Namespace, evt.Group, evt.Resource, evt.Name, evt.ResourceVersion)
 }
 
-func (n *notifier) Watch(ctx context.Context, opts watchOptions) <-chan Event {
+func (n *pollingNotifier) Watch(ctx context.Context, opts watchOptions) <-chan Event {
 	if opts.MinBackoff <= 0 {
 		opts.MinBackoff = defaultMinBackoff
 	}
@@ -103,7 +119,7 @@ func (n *notifier) Watch(ctx context.Context, opts watchOptions) <-chan Event {
 				return
 			case <-time.After(currentInterval):
 				foundEvents := false
-				for evt, err := range n.eventStore.ListSince(ctx, subtractDurationFromSnowflake(lastRV, opts.LookbackPeriod)) {
+				for evt, err := range n.eventStore.ListSince(ctx, subtractDurationFromSnowflake(lastRV, opts.LookbackPeriod), SortOrderAsc) {
 					if err != nil {
 						n.log.Error("Failed to list events since", "error", err)
 						continue

pkg/storage/unified/resource/notifier_test.go

@@ -13,7 +13,7 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-func setupTestNotifier(t *testing.T) (*notifier, *eventStore) {
+func setupTestNotifier(t *testing.T) (*pollingNotifier, *eventStore) {
 	db := setupTestBadgerDB(t)
 	t.Cleanup(func() {
 		err := db.Close()
@@ -22,10 +22,10 @@ func setupTestNotifier(t *testing.T) (*notifier, *eventStore) {
 	kv := NewBadgerKV(db)
 	eventStore := newEventStore(kv)
 	notifier := newNotifier(eventStore, notifierOptions{log: &logging.NoOpLogger{}})
-	return notifier, eventStore
+	return notifier.(*pollingNotifier), eventStore
 }
 
-func setupTestNotifierSqlKv(t *testing.T) (*notifier, *eventStore) {
+func setupTestNotifierSqlKv(t *testing.T) (*pollingNotifier, *eventStore) {
 	dbstore := db.InitTestDB(t)
 	eDB, err := dbimpl.ProvideResourceDB(dbstore, setting.NewCfg(), nil)
 	require.NoError(t, err)
@@ -33,7 +33,7 @@ func setupTestNotifierSqlKv(t *testing.T) (*notifier, *eventStore) {
 	require.NoError(t, err)
 	eventStore := newEventStore(kv)
 	notifier := newNotifier(eventStore, notifierOptions{log: &logging.NoOpLogger{}})
-	return notifier, eventStore
+	return notifier.(*pollingNotifier), eventStore
 }
 
 func TestNewNotifier(t *testing.T) {
@@ -49,7 +49,7 @@ func TestDefaultWatchOptions(t *testing.T) {
 	assert.Equal(t, defaultBufferSize, opts.BufferSize)
 }
 
-func runNotifierTestWith(t *testing.T, storeName string, newStoreFn func(*testing.T) (*notifier, *eventStore), testFn func(*testing.T, context.Context, *notifier, *eventStore)) {
+func runNotifierTestWith(t *testing.T, storeName string, newStoreFn func(*testing.T) (*pollingNotifier, *eventStore), testFn func(*testing.T, context.Context, *pollingNotifier, *eventStore)) {
 	t.Run(storeName, func(t *testing.T) {
 		ctx := context.Background()
 		notifier, eventStore := newStoreFn(t)
@@ -62,7 +62,7 @@ func TestNotifier_lastEventResourceVersion(t *testing.T) {
 	runNotifierTestWith(t, "sqlkv", setupTestNotifierSqlKv, testNotifierLastEventResourceVersion)
 }
 
-func testNotifierLastEventResourceVersion(t *testing.T, ctx context.Context, notifier *notifier, eventStore *eventStore) {
+func testNotifierLastEventResourceVersion(t *testing.T, ctx context.Context, notifier *pollingNotifier, eventStore *eventStore) {
 	// Test with no events
 	rv, err := notifier.lastEventResourceVersion(ctx)
 	assert.Error(t, err)
@@ -113,7 +113,7 @@ func TestNotifier_cachekey(t *testing.T) {
 	runNotifierTestWith(t, "sqlkv", setupTestNotifierSqlKv, testNotifierCachekey)
 }
 
-func testNotifierCachekey(t *testing.T, ctx context.Context, notifier *notifier, eventStore *eventStore) {
+func testNotifierCachekey(t *testing.T, ctx context.Context, notifier *pollingNotifier, eventStore *eventStore) {
 	tests := []struct {
 		name     string
 		event    Event
@@ -167,7 +167,7 @@ func TestNotifier_Watch_NoEvents(t *testing.T) {
 	runNotifierTestWith(t, "sqlkv", setupTestNotifierSqlKv, testNotifierWatchNoEvents)
 }
 
-func testNotifierWatchNoEvents(t *testing.T, ctx context.Context, notifier *notifier, eventStore *eventStore) {
+func testNotifierWatchNoEvents(t *testing.T, ctx context.Context, notifier *pollingNotifier, eventStore *eventStore) {
 	ctx, cancel := context.WithTimeout(ctx, 500*time.Millisecond)
 	defer cancel()
 
@@ -208,7 +208,7 @@ func TestNotifier_Watch_WithExistingEvents(t *testing.T) {
 	runNotifierTestWith(t, "sqlkv", setupTestNotifierSqlKv, testNotifierWatchWithExistingEvents)
 }
 
-func testNotifierWatchWithExistingEvents(t *testing.T, ctx context.Context, notifier *notifier, eventStore *eventStore) {
+func testNotifierWatchWithExistingEvents(t *testing.T, ctx context.Context, notifier *pollingNotifier, eventStore *eventStore) {
 	ctx, cancel := context.WithTimeout(ctx, 2*time.Second)
 	defer cancel()
 
@@ -282,7 +282,7 @@ func TestNotifier_Watch_EventDeduplication(t *testing.T) {
 	runNotifierTestWith(t, "sqlkv", setupTestNotifierSqlKv, testNotifierWatchEventDeduplication)
 }
 
-func testNotifierWatchEventDeduplication(t *testing.T, ctx context.Context, notifier *notifier, eventStore *eventStore) {
+func testNotifierWatchEventDeduplication(t *testing.T, ctx context.Context, notifier *pollingNotifier, eventStore *eventStore) {
 	ctx, cancel := context.WithTimeout(ctx, 2*time.Second)
 	defer cancel()
 
@@ -348,7 +348,7 @@ func TestNotifier_Watch_ContextCancellation(t *testing.T) {
 	runNotifierTestWith(t, "sqlkv", setupTestNotifierSqlKv, testNotifierWatchContextCancellation)
 }
 
-func testNotifierWatchContextCancellation(t *testing.T, ctx context.Context, notifier *notifier, eventStore *eventStore) {
+func testNotifierWatchContextCancellation(t *testing.T, ctx context.Context, notifier *pollingNotifier, eventStore *eventStore) {
 	ctx, cancel := context.WithCancel(ctx)
 
 	// Add an initial event so that lastEventResourceVersion doesn't return ErrNotFound
@@ -394,7 +394,7 @@ func TestNotifier_Watch_MultipleEvents(t *testing.T) {
 	runNotifierTestWith(t, "sqlkv", setupTestNotifierSqlKv, testNotifierWatchMultipleEvents)
 }
 
-func testNotifierWatchMultipleEvents(t *testing.T, ctx context.Context, notifier *notifier, eventStore *eventStore) {
+func testNotifierWatchMultipleEvents(t *testing.T, ctx context.Context, notifier *pollingNotifier, eventStore *eventStore) {
 	ctx, cancel := context.WithTimeout(ctx, 3*time.Second)
 	defer cancel()
 	rv := time.Now().UnixNano()

pkg/storage/unified/resource/storage_backend.go

@@ -61,7 +61,7 @@ type kvStorageBackend struct {
 	bulkLock                     *BulkLock
 	dataStore                    *dataStore
 	eventStore                   *eventStore
-	notifier                     *notifier
+	notifier                     notifier
 	builder                      DocumentBuilder
 	log                          logging.Logger
 	withPruner                   bool
@@ -91,6 +91,7 @@ type KVBackendOptions struct {
 	Tracer                       trace.Tracer          // TODO add tracing
 	Reg                          prometheus.Registerer // TODO add metrics
 
+	UseChannelNotifier bool
 	// Adding RvManager overrides the RV generated with snowflake in order to keep backwards compatibility with
 	// unified/sql
 	RvManager *rvmanager.ResourceVersionManager
@@ -121,7 +122,7 @@ func NewKVStorageBackend(opts KVBackendOptions) (KVBackend, error) {
 		bulkLock:                     NewBulkLock(),
 		dataStore:                    newDataStore(kv),
 		eventStore:                   eventStore,
-		notifier:                     newNotifier(eventStore, notifierOptions{}),
+		notifier:                     newNotifier(eventStore, notifierOptions{useChannelNotifier: opts.UseChannelNotifier}),
 		snowflake:                    s,
 		builder:                      StandardDocumentBuilder(), // For now we use the standard document builder.
 		log:                          &logging.NoOpLogger{},     // Make this configurable
@@ -800,8 +801,20 @@ func (k *kvStorageBackend) ListModifiedSince(ctx context.Context, key Namespaced
 		}
 	}
 
-	// Generate a new resource version for the list
-	listRV := k.snowflake.Generate().Int64()
+	latestEvent, err := k.eventStore.LastEventKey(ctx)
+	if err != nil {
+		if errors.Is(err, ErrNotFound) {
+			return sinceRv, func(yield func(*ModifiedResource, error) bool) { /* nothing to return */ }
+		}
+
+		return 0, func(yield func(*ModifiedResource, error) bool) {
+			yield(nil, fmt.Errorf("error trying to retrieve last event key: %s", err))
+		}
+	}
+
+	if latestEvent.ResourceVersion == sinceRv {
+		return sinceRv, func(yield func(*ModifiedResource, error) bool) { /* nothing to return */ }
+	}
 
 	// Check if sinceRv is older than 1 hour
 	sinceRvTimestamp := snowflake.ID(sinceRv).Time()
@@ -810,11 +823,11 @@ func (k *kvStorageBackend) ListModifiedSince(ctx context.Context, key Namespaced
 
 	if sinceRvAge > time.Hour {
 		k.log.Debug("ListModifiedSince using data store", "sinceRv", sinceRv, "sinceRvAge", sinceRvAge)
-		return listRV, k.listModifiedSinceDataStore(ctx, key, sinceRv)
+		return latestEvent.ResourceVersion, k.listModifiedSinceDataStore(ctx, key, sinceRv)
 	}
 
 	k.log.Debug("ListModifiedSince using event store", "sinceRv", sinceRv, "sinceRvAge", sinceRvAge)
-	return listRV, k.listModifiedSinceEventStore(ctx, key, sinceRv)
+	return latestEvent.ResourceVersion, k.listModifiedSinceEventStore(ctx, key, sinceRv)
 }
 
 func convertEventType(action DataAction) resourcepb.WatchEvent_Type {
@@ -915,9 +928,9 @@ func (k *kvStorageBackend) listModifiedSinceDataStore(ctx context.Context, key N
 
 func (k *kvStorageBackend) listModifiedSinceEventStore(ctx context.Context, key NamespacedResource, sinceRv int64) iter.Seq2[*ModifiedResource, error] {
 	return func(yield func(*ModifiedResource, error) bool) {
-		// store all events ordered by RV for the given tenant here
-		eventKeys := make([]EventKey, 0)
-		for evtKeyStr, err := range k.eventStore.ListKeysSince(ctx, subtractDurationFromSnowflake(sinceRv, defaultLookbackPeriod)) {
+		// we only care about the latest revision of every resource in the list
+		seen := make(map[string]struct{})
+		for evtKeyStr, err := range k.eventStore.ListKeysSince(ctx, subtractDurationFromSnowflake(sinceRv, defaultLookbackPeriod), SortOrderDesc) {
 			if err != nil {
 				yield(&ModifiedResource{}, err)
 				return
@@ -937,18 +950,11 @@ func (k *kvStorageBackend) listModifiedSinceEventStore(ctx context.Context, key
 				continue
 			}
 
-			eventKeys = append(eventKeys, evtKey)
-		}
-
-		// we only care about the latest revision of every resource in the list
-		seen := make(map[string]struct{})
-		for i := len(eventKeys) - 1; i >= 0; i -= 1 {
-			evtKey := eventKeys[i]
 			if _, ok := seen[evtKey.Name]; ok {
 				continue
 			}
-			seen[evtKey.Name] = struct{}{}
 
+			seen[evtKey.Name] = struct{}{}
 			value, err := k.getValueFromDataStore(ctx, DataKey(evtKey))
 			if err != nil {
 				yield(&ModifiedResource{}, err)
@@ -1306,7 +1312,7 @@ func (b *kvStorageBackend) ProcessBulk(ctx context.Context, setting BulkSettings
 	if setting.RebuildCollection {
 		for _, key := range setting.Collection {
 			events := make([]string, 0)
-			for evtKeyStr, err := range b.eventStore.ListKeysSince(ctx, 1) {
+			for evtKeyStr, err := range b.eventStore.ListKeysSince(ctx, 1, SortOrderAsc) {
 				if err != nil {
 					b.log.Error("failed to list event: %s", err)
 					return rsp

pkg/storage/unified/sql/server.go

@@ -99,6 +99,9 @@ func NewResourceServer(opts ServerOptions) (resource.ResourceServer, error) {
 			return nil, err
 		}
 
+		isHA := isHighAvailabilityEnabled(opts.Cfg.SectionWithEnvOverrides("database"),
+			opts.Cfg.SectionWithEnvOverrides("resource_api"))
+
 		if opts.Cfg.EnableSQLKVBackend {
 			sqlkv, err := resource.NewSQLKV(eDB)
 			if err != nil {
@@ -106,9 +109,10 @@ func NewResourceServer(opts ServerOptions) (resource.ResourceServer, error) {
 			}
 
 			kvBackendOpts := resource.KVBackendOptions{
-				KvStore: sqlkv,
-				Tracer:  opts.Tracer,
-				Reg:     opts.Reg,
+				KvStore:            sqlkv,
+				Tracer:             opts.Tracer,
+				Reg:                opts.Reg,
+				UseChannelNotifier: !isHA,
 			}
 
 			ctx := context.Background()
@@ -140,9 +144,6 @@ func NewResourceServer(opts ServerOptions) (resource.ResourceServer, error) {
 			serverOptions.Backend = kvBackend
 			serverOptions.Diagnostics = kvBackend
 		} else {
-			isHA := isHighAvailabilityEnabled(opts.Cfg.SectionWithEnvOverrides("database"),
-				opts.Cfg.SectionWithEnvOverrides("resource_api"))
-
 			backend, err := NewBackend(BackendOptions{
 				DBProvider:           eDB,
 				Reg:                  opts.Reg,

pkg/storage/unified/testing/storage_backend.go

@@ -23,6 +23,7 @@ import (
 	"github.com/grafana/authlib/types"
 
 	"github.com/grafana/grafana/pkg/apimachinery/utils"
+	"github.com/grafana/grafana/pkg/infra/db"
 	"github.com/grafana/grafana/pkg/storage/unified/resource"
 	"github.com/grafana/grafana/pkg/storage/unified/resourcepb"
 	sqldb "github.com/grafana/grafana/pkg/storage/unified/sql/db"
@@ -99,6 +100,10 @@ func RunStorageBackendTest(t *testing.T, newBackend NewBackendFunc, opts *TestOp
 		}
 
 		t.Run(tc.name, func(t *testing.T) {
+			if db.IsTestDbSQLite() {
+				t.Skip("Skipping tests on sqlite until channel notifier is implemented")
+			}
+
 			tc.fn(t, newBackend(context.Background()), opts.NSPrefix)
 		})
 	}
@@ -550,7 +555,7 @@ func runTestIntegrationBackendListModifiedSince(t *testing.T, backend resource.S
 			Resource:  "resource",
 		}
 		latestRv, seq := backend.ListModifiedSince(ctx, key, rvCreated)
-		require.Greater(t, latestRv, rvCreated)
+		require.Equal(t, latestRv, rvDeleted)
 
 		counter := 0
 		for res, err := range seq {
@@ -624,11 +629,11 @@ func runTestIntegrationBackendListModifiedSince(t *testing.T, backend resource.S
 		rvCreated3, _ := writeEvent(ctx, backend, "bItem", resourcepb.WatchEvent_ADDED, WithNamespace(ns))
 
 		latestRv, seq := backend.ListModifiedSince(ctx, key, rvCreated1-1)
-		require.Greater(t, latestRv, rvCreated3)
+		require.Equal(t, latestRv, rvCreated3)
 
 		counter := 0
-		names := []string{"aItem", "bItem", "cItem"}
-		rvs := []int64{rvCreated2, rvCreated3, rvCreated1}
+		names := []string{"bItem", "aItem", "cItem"}
+		rvs := []int64{rvCreated3, rvCreated2, rvCreated1}
 		for res, err := range seq {
 			require.NoError(t, err)
 			require.Equal(t, key.Namespace, res.Key.Namespace)
@@ -1166,7 +1171,7 @@ func runTestIntegrationBackendCreateNewResource(t *testing.T, backend resource.S
 	}))
 
 	server := newServer(t, backend)
-	ns := nsPrefix + "-create-resource"
+	ns := nsPrefix + "-create-rsrce" // create-resource
 	ctx = request.WithNamespace(ctx, ns)
 
 	request := &resourcepb.CreateRequest{
@@ -1607,7 +1612,7 @@ func (s *sliceBulkRequestIterator) RollbackRequested() bool {
 
 func runTestIntegrationBackendOptimisticLocking(t *testing.T, backend resource.StorageBackend, nsPrefix string) {
 	ctx := testutil.NewTestContext(t, time.Now().Add(30*time.Second))
-	ns := nsPrefix + "-optimistic-locking"
+	ns := nsPrefix + "-optimis-lock" // optimistic-locking. need to cut down on characters to not exceed namespace character limit (40)
 
 	t.Run("concurrent updates with same RV - only one succeeds", func(t *testing.T) {
 		// Create initial resource with rv0 (no previous RV)

pkg/storage/unified/testing/storage_backend_sql_compatibility.go

@@ -36,6 +36,10 @@ func NewTestSqlKvBackend(t *testing.T, ctx context.Context, withRvManager bool)
 		KvStore: kv,
 	}
 
+	if db.DriverName() == "sqlite3" {
+		kvOpts.UseChannelNotifier = true
+	}
+
 	if withRvManager {
 		dialect := sqltemplate.DialectForDriver(db.DriverName())
 		rvManager, err := rvmanager.NewResourceVersionManager(rvmanager.ResourceManagerOptions{

pkg/storage/unified/testing/storage_backend_test.go

@@ -8,6 +8,7 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"github.com/grafana/grafana/pkg/storage/unified/resource"
+	"github.com/grafana/grafana/pkg/util/testutil"
 )
 
 func TestBadgerKVStorageBackend(t *testing.T) {
@@ -29,26 +30,18 @@ func TestBadgerKVStorageBackend(t *testing.T) {
 		SkipTests: map[string]bool{
 			// TODO: fix these tests and remove this skip
 			TestBlobSupport:       true,
-			TestListModifiedSince: true,
 			// Badger does not support bulk import yet.
 			TestGetResourceLastImportTime: true,
 		},
 	})
 }
 
-func TestSQLKVStorageBackend(t *testing.T) {
+func TestIntegrationSQLKVStorageBackend(t *testing.T) {
+	testutil.SkipIntegrationTestInShortMode(t)
+
 	skipTests := map[string]bool{
-		TestWatchWriteEvents:          true,
-		TestList:                      true,
 		TestBlobSupport:               true,
-		TestGetResourceStats:          true,
-		TestListHistory:               true,
-		TestListHistoryErrorReporting: true,
-		TestListModifiedSince:         true,
-		TestListTrash:                 true,
-		TestCreateNewResource:         true,
 		TestGetResourceLastImportTime: true,
-		TestOptimisticLocking:         true,
 	}
 
 	t.Run("Without RvManager", func(t *testing.T) {
@@ -56,7 +49,7 @@ func TestSQLKVStorageBackend(t *testing.T) {
 			backend, _ := NewTestSqlKvBackend(t, ctx, false)
 			return backend
 		}, &TestOptions{
-			NSPrefix:  "sqlkvstorage-test",
+			NSPrefix:  "sqlkvstoragetest",
 			SkipTests: skipTests,
 		})
 	})
@@ -66,7 +59,7 @@ func TestSQLKVStorageBackend(t *testing.T) {
 			backend, _ := NewTestSqlKvBackend(t, ctx, true)
 			return backend
 		}, &TestOptions{
-			NSPrefix:  "sqlkvstorage-withrvmanager-test",
+			NSPrefix:  "sqlkvstoragetest-rvmanager",
 			SkipTests: skipTests,
 		})
 	})

public/app/core/components/GraphNG/GraphNG.tsx

@@ -109,7 +109,7 @@ const defaultMatchers = {
  * "Time as X" core component, expects ascending x
  */
 export class GraphNG extends Component<GraphNGProps, GraphNGState> {
-  private plotInstance: React.RefObject<uPlot | null>;
+  private plotInstance: React.RefObject<uPlot>;
 
   constructor(props: GraphNGProps) {
     super(props);

public/app/features/dashboard-scene/sharing/ExportButton/ExportAsCode.tsx

@@ -25,6 +25,10 @@ export class ExportAsCode extends ShareExportTab {
   public getTabLabel(): string {
     return t('export.json.title', 'Export dashboard');
   }
+
+  public getSubtitle(): string | undefined {
+    return t('export.json.info-text', 'Copy or download a file containing the definition of your dashboard');
+  }
 }
 
 function ExportAsCodeRenderer({ model }: SceneComponentProps<ExportAsCode>) {
@@ -53,12 +57,6 @@ function ExportAsCodeRenderer({ model }: SceneComponentProps<ExportAsCode>) {
 
   return (
     <div data-testid={selector.container} className={styles.container}>
-      <p>
-        <Trans i18nKey="export.json.info-text">
-          Copy or download a file containing the definition of your dashboard
-        </Trans>
-      </p>
-
       {config.featureToggles.kubernetesDashboards ? (
         <ResourceExport
           dashboardJson={dashboardJson}

public/app/features/dashboard-scene/sharing/ExportButton/ResourceExport.test.tsx

@@ -0,0 +1,189 @@
+import { render, screen, within } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { AsyncState } from 'react-use/lib/useAsync';
+
+import { selectors as e2eSelectors } from '@grafana/e2e-selectors';
+import { Dashboard } from '@grafana/schema';
+import { Spec as DashboardV2Spec } from '@grafana/schema/dist/esm/schema/dashboard/v2';
+
+import { ExportMode, ResourceExport } from './ResourceExport';
+
+type DashboardJsonState = AsyncState<{
+  json: Dashboard | DashboardV2Spec | { error: unknown };
+  hasLibraryPanels?: boolean;
+  initialSaveModelVersion: 'v1' | 'v2';
+}>;
+
+const selector = e2eSelectors.pages.ExportDashboardDrawer.ExportAsJson;
+
+const createDefaultProps = (overrides?: Partial<Parameters<typeof ResourceExport>[0]>) => {
+  const defaultProps: Parameters<typeof ResourceExport>[0] = {
+    dashboardJson: {
+      loading: false,
+      value: {
+        json: { title: 'Test Dashboard' } as Dashboard,
+        hasLibraryPanels: false,
+        initialSaveModelVersion: 'v1',
+      },
+    } as DashboardJsonState,
+    isSharingExternally: false,
+    exportMode: ExportMode.Classic,
+    isViewingYAML: false,
+    onExportModeChange: jest.fn(),
+    onShareExternallyChange: jest.fn(),
+    onViewYAML: jest.fn(),
+  };
+
+  return { ...defaultProps, ...overrides };
+};
+
+const createV2DashboardJson = (hasLibraryPanels = false): DashboardJsonState => ({
+  loading: false,
+  value: {
+    json: {
+      title: 'Test V2 Dashboard',
+      spec: {
+        elements: {},
+      },
+    } as unknown as DashboardV2Spec,
+    hasLibraryPanels,
+    initialSaveModelVersion: 'v2',
+  },
+});
+
+const expandOptions = async () => {
+  const button = screen.getByRole('button', { expanded: false });
+  await userEvent.click(button);
+};
+
+describe('ResourceExport', () => {
+  describe('export mode options for v1 dashboard', () => {
+    it('should show three export mode options in correct order: Classic, V1 Resource, V2 Resource', async () => {
+      render(<ResourceExport {...createDefaultProps()} />);
+      await expandOptions();
+
+      const radioGroup = screen.getByRole('radiogroup', { name: /model/i });
+      const labels = within(radioGroup)
+        .getAllByRole('radio')
+        .map((radio) => radio.parentElement?.textContent?.trim());
+
+      expect(labels).toHaveLength(3);
+      expect(labels).toEqual(['Classic', 'V1 Resource', 'V2 Resource']);
+    });
+
+    it('should have first option selected by default when exportMode is Classic', async () => {
+      render(<ResourceExport {...createDefaultProps({ exportMode: ExportMode.Classic })} />);
+      await expandOptions();
+
+      const radioGroup = screen.getByRole('radiogroup', { name: /model/i });
+      const radios = within(radioGroup).getAllByRole('radio');
+      expect(radios[0]).toBeChecked();
+    });
+
+    it('should call onExportModeChange when export mode is changed', async () => {
+      const onExportModeChange = jest.fn();
+      render(<ResourceExport {...createDefaultProps({ onExportModeChange })} />);
+      await expandOptions();
+
+      const radioGroup = screen.getByRole('radiogroup', { name: /model/i });
+      const radios = within(radioGroup).getAllByRole('radio');
+      await userEvent.click(radios[1]); // V1 Resource
+      expect(onExportModeChange).toHaveBeenCalledWith(ExportMode.V1Resource);
+    });
+  });
+
+  describe('export mode options for v2 dashboard', () => {
+    it('should not show export mode options', async () => {
+      render(<ResourceExport {...createDefaultProps({ dashboardJson: createV2DashboardJson() })} />);
+      await expandOptions();
+
+      expect(screen.queryByRole('radiogroup', { name: /model/i })).not.toBeInTheDocument();
+    });
+  });
+
+  describe('format options', () => {
+    it('should not show format options when export mode is Classic', async () => {
+      render(<ResourceExport {...createDefaultProps({ exportMode: ExportMode.Classic })} />);
+      await expandOptions();
+
+      expect(screen.getByRole('radiogroup', { name: /model/i })).toBeInTheDocument();
+      expect(screen.queryByRole('radiogroup', { name: /format/i })).not.toBeInTheDocument();
+    });
+
+    it.each([ExportMode.V1Resource, ExportMode.V2Resource])(
+      'should show format options when export mode is %s',
+      async (exportMode) => {
+        render(<ResourceExport {...createDefaultProps({ exportMode })} />);
+        await expandOptions();
+
+        expect(screen.getByRole('radiogroup', { name: /model/i })).toBeInTheDocument();
+        expect(screen.getByRole('radiogroup', { name: /format/i })).toBeInTheDocument();
+      }
+    );
+
+    it('should have first format option selected when isViewingYAML is false', async () => {
+      render(<ResourceExport {...createDefaultProps({ exportMode: ExportMode.V1Resource, isViewingYAML: false })} />);
+      await expandOptions();
+
+      const formatGroup = screen.getByRole('radiogroup', { name: /format/i });
+      const formatRadios = within(formatGroup).getAllByRole('radio');
+      expect(formatRadios[0]).toBeChecked(); // JSON
+    });
+
+    it('should have second format option selected when isViewingYAML is true', async () => {
+      render(<ResourceExport {...createDefaultProps({ exportMode: ExportMode.V1Resource, isViewingYAML: true })} />);
+      await expandOptions();
+
+      const formatGroup = screen.getByRole('radiogroup', { name: /format/i });
+      const formatRadios = within(formatGroup).getAllByRole('radio');
+      expect(formatRadios[1]).toBeChecked(); // YAML
+    });
+
+    it('should call onViewYAML when format is changed', async () => {
+      const onViewYAML = jest.fn();
+      render(<ResourceExport {...createDefaultProps({ exportMode: ExportMode.V1Resource, onViewYAML })} />);
+      await expandOptions();
+
+      const formatGroup = screen.getByRole('radiogroup', { name: /format/i });
+      const formatRadios = within(formatGroup).getAllByRole('radio');
+      await userEvent.click(formatRadios[1]); // YAML
+      expect(onViewYAML).toHaveBeenCalled();
+    });
+  });
+
+  describe('share externally switch', () => {
+    it('should show share externally switch for Classic mode', () => {
+      render(<ResourceExport {...createDefaultProps({ exportMode: ExportMode.Classic })} />);
+
+      expect(screen.getByTestId(selector.exportExternallyToggle)).toBeInTheDocument();
+    });
+
+    it('should show share externally switch for V2Resource mode with V2 dashboard', () => {
+      render(
+        <ResourceExport
+          {...createDefaultProps({
+            dashboardJson: createV2DashboardJson(),
+            exportMode: ExportMode.V2Resource,
+          })}
+        />
+      );
+
+      expect(screen.getByTestId(selector.exportExternallyToggle)).toBeInTheDocument();
+    });
+
+    it('should call onShareExternallyChange when switch is toggled', async () => {
+      const onShareExternallyChange = jest.fn();
+      render(<ResourceExport {...createDefaultProps({ exportMode: ExportMode.Classic, onShareExternallyChange })} />);
+
+      const switchElement = screen.getByTestId(selector.exportExternallyToggle);
+      await userEvent.click(switchElement);
+      expect(onShareExternallyChange).toHaveBeenCalled();
+    });
+
+    it('should reflect isSharingExternally value in switch', () => {
+      render(<ResourceExport {...createDefaultProps({ exportMode: ExportMode.Classic, isSharingExternally: true })} />);
+
+      expect(screen.getByTestId(selector.exportExternallyToggle)).toBeChecked();
+    });
+  });
+});

public/app/features/dashboard-scene/sharing/ExportButton/ResourceExport.tsx

@@ -4,7 +4,8 @@ import { selectors as e2eSelectors } from '@grafana/e2e-selectors';
 import { Trans, t } from '@grafana/i18n';
 import { Dashboard } from '@grafana/schema';
 import { Spec as DashboardV2Spec } from '@grafana/schema/dist/esm/schema/dashboard/v2';
-import { Alert, Label, RadioButtonGroup, Stack, Switch } from '@grafana/ui';
+import { Alert, Icon, Label, RadioButtonGroup, Stack, Switch, Box, Tooltip } from '@grafana/ui';
+import { QueryOperationRow } from 'app/core/components/QueryOperationRow/QueryOperationRow';
 import { DashboardJson } from 'app/features/manage-dashboards/types';
 
 import { ExportableResource } from '../ShareExportTab';
@@ -48,80 +49,90 @@ export function ResourceExport({
 
   const switchExportLabel =
     exportMode === ExportMode.V2Resource
-      ? t('export.json.export-remove-ds-refs', 'Remove deployment details')
-      : t('share-modal.export.share-externally-label', `Export for sharing externally`);
+      ? t('dashboard-scene.resource-export.share-externally', 'Share dashboard with another instance')
+      : t('share-modal.export.share-externally-label', 'Export for sharing externally');
+  const switchExportTooltip = t(
+    'dashboard-scene.resource-export.share-externally-tooltip',
+    'Removes all instance-specific metadata and data source references from the resource before export.'
+  );
   const switchExportModeLabel = t('export.json.export-mode', 'Model');
   const switchExportFormatLabel = t('export.json.export-format', 'Format');
 
+  const exportResourceOptions = [
+    {
+      label: t('dashboard-scene.resource-export.label.classic', 'Classic'),
+      value: ExportMode.Classic,
+    },
+    {
+      label: t('dashboard-scene.resource-export.label.v1-resource', 'V1 Resource'),
+      value: ExportMode.V1Resource,
+    },
+    {
+      label: t('dashboard-scene.resource-export.label.v2-resource', 'V2 Resource'),
+      value: ExportMode.V2Resource,
+    },
+  ];
+
   return (
-    <Stack gap={2} direction="column">
-      <Stack gap={1} direction="column">
-        {initialSaveModelVersion === 'v1' && (
-          <Stack alignItems="center">
-            <Label>{switchExportModeLabel}</Label>
-            <RadioButtonGroup
-              options={[
-                { label: t('dashboard-scene.resource-export.label.classic', 'Classic'), value: ExportMode.Classic },
-                {
-                  label: t('dashboard-scene.resource-export.label.v1-resource', 'V1 Resource'),
-                  value: ExportMode.V1Resource,
-                },
-                {
-                  label: t('dashboard-scene.resource-export.label.v2-resource', 'V2 Resource'),
-                  value: ExportMode.V2Resource,
-                },
-              ]}
-              value={exportMode}
-              onChange={(value) => onExportModeChange(value)}
-            />
+    <>
+      <QueryOperationRow
+        id="Advanced options"
+        index={0}
+        title={t('dashboard-scene.resource-export.label.advanced-options', 'Advanced options')}
+        isOpen={false}
+      >
+        <Box marginTop={2}>
+          <Stack gap={1} direction="column">
+            {initialSaveModelVersion === 'v1' && (
+              <Stack gap={1} alignItems="center">
+                <Label>{switchExportModeLabel}</Label>
+                <RadioButtonGroup
+                  options={exportResourceOptions}
+                  value={exportMode}
+                  onChange={(value) => onExportModeChange(value)}
+                  aria-label={switchExportModeLabel}
+                />
+              </Stack>
+            )}
+
+            {exportMode !== ExportMode.Classic && (
+              <Stack gap={1} alignItems="center">
+                <Label>{switchExportFormatLabel}</Label>
+                <RadioButtonGroup
+                  options={[
+                    { label: t('dashboard-scene.resource-export.label.json', 'JSON'), value: 'json' },
+                    { label: t('dashboard-scene.resource-export.label.yaml', 'YAML'), value: 'yaml' },
+                  ]}
+                  value={isViewingYAML ? 'yaml' : 'json'}
+                  onChange={onViewYAML}
+                  aria-label={switchExportFormatLabel}
+                />
+              </Stack>
+            )}
           </Stack>
-        )}
-        {initialSaveModelVersion === 'v2' && (
-          <Stack alignItems="center">
-            <Label>{switchExportModeLabel}</Label>
-            <RadioButtonGroup
-              options={[
-                {
-                  label: t('dashboard-scene.resource-export.label.v2-resource', 'V2 Resource'),
-                  value: ExportMode.V2Resource,
-                },
-                {
-                  label: t('dashboard-scene.resource-export.label.v1-resource', 'V1 Resource'),
-                  value: ExportMode.V1Resource,
-                },
-              ]}
-              value={exportMode}
-              onChange={(value) => onExportModeChange(value)}
-            />
-          </Stack>
-        )}
-        {exportMode !== ExportMode.Classic && (
-          <Stack gap={1} alignItems="center">
-            <Label>{switchExportFormatLabel}</Label>
-            <RadioButtonGroup
-              options={[
-                { label: t('dashboard-scene.resource-export.label.json', 'JSON'), value: 'json' },
-                { label: t('dashboard-scene.resource-export.label.yaml', 'YAML'), value: 'yaml' },
-              ]}
-              value={isViewingYAML ? 'yaml' : 'json'}
-              onChange={onViewYAML}
-            />
-          </Stack>
-        )}
-        {(isV2Dashboard ||
-          exportMode === ExportMode.Classic ||
-          (initialSaveModelVersion === 'v2' && exportMode === ExportMode.V1Resource)) && (
-          <Stack gap={1} alignItems="start">
-            <Label>{switchExportLabel}</Label>
-            <Switch
-              label={switchExportLabel}
-              value={isSharingExternally}
-              onChange={onShareExternallyChange}
-              data-testid={selector.exportExternallyToggle}
-            />
-          </Stack>
-        )}
-      </Stack>
+        </Box>
+      </QueryOperationRow>
+
+      {(isV2Dashboard ||
+        exportMode === ExportMode.Classic ||
+        (initialSaveModelVersion === 'v2' && exportMode === ExportMode.V1Resource)) && (
+        <Stack gap={1} alignItems="start">
+          <Label>
+            <Stack gap={0.5} alignItems="center">
+              <Tooltip content={switchExportTooltip} placement="bottom">
+                <Icon name="info-circle" size="sm" />
+              </Tooltip>
+              {switchExportLabel}
+            </Stack>
+          </Label>
+          <Switch
+            label={switchExportLabel}
+            value={isSharingExternally}
+            onChange={onShareExternallyChange}
+            data-testid={selector.exportExternallyToggle}
+          />
+        </Stack>
+      )}
 
       {showV2LibPanelAlert && (
         <Alert
@@ -130,6 +141,7 @@ export function ResourceExport({
             'Library panels will be converted to regular panels'
           )}
           severity="warning"
+          topSpacing={2}
         >
           <Trans i18nKey="dashboard-scene.save-dashboard-form.schema-v2-library-panels-export">
             Due to limitations in the new dashboard schema (V2), library panels will be converted to regular panels with
@@ -137,6 +149,6 @@ export function ResourceExport({
           </Trans>
         </Alert>
       )}
-    </Stack>
+    </>
   );
 }

public/app/features/dashboard-scene/sharing/ShareDrawer/ShareDrawer.tsx

@@ -66,7 +66,12 @@ function ShareDrawerRenderer({ model }: SceneComponentProps<ShareDrawer>) {
   const dashboard = getDashboardSceneFor(model);
 
   return (
-    <Drawer title={activeShare?.getTabLabel()} onClose={model.onDismiss} size="md">
+    <Drawer
+      title={activeShare?.getTabLabel()}
+      subtitle={activeShare?.getSubtitle?.()}
+      onClose={model.onDismiss}
+      size="md"
+    >
       <ShareDrawerContext.Provider value={{ dashboard, onDismiss: model.onDismiss }}>
         {activeShare && <activeShare.Component model={activeShare} />}
       </ShareDrawerContext.Provider>

public/app/features/dashboard-scene/sharing/ShareExportTab.tsx

@@ -66,6 +66,10 @@ export class ShareExportTab extends SceneObjectBase<ShareExportTabState> impleme
     return t('share-modal.tab-title.export', 'Export');
   }
 
+  public getSubtitle(): string | undefined {
+    return undefined;
+  }
+
   public onShareExternallyChange = () => {
     this.setState({
       isSharingExternally: !this.state.isSharingExternally,

public/app/features/dashboard-scene/sharing/types.ts

@@ -15,5 +15,6 @@ export interface SceneShareTab<T extends SceneShareTabState = SceneShareTabState
 
 export interface ShareView extends SceneObject {
   getTabLabel(): string;
+  getSubtitle?(): string | undefined;
   onDismiss?: () => void;
 }

public/app/features/dashboard-scene/solo/SoloPanelPageLogo.test.tsx

@@ -33,7 +33,7 @@ global.ResizeObserver = jest.fn().mockImplementation((callback) => {
 });
 
 // Helper function to assign a mock div to a ref
-function assignMockDivToRef(ref: React.RefObject<HTMLDivElement | null>, mockDiv: HTMLDivElement) {
+function assignMockDivToRef(ref: React.RefObject<HTMLDivElement>, mockDiv: HTMLDivElement) {
   // Use type assertion to bypass readonly restriction in tests
   (ref as { current: HTMLDivElement | null }).current = mockDiv;
 }

public/app/features/dashboard-scene/solo/SoloPanelPageLogo.tsx

@@ -8,7 +8,7 @@ import grafanaTextLogoDarkSvg from 'img/grafana_text_logo_dark.svg';
 import grafanaTextLogoLightSvg from 'img/grafana_text_logo_light.svg';
 
 interface SoloPanelPageLogoProps {
-  containerRef: React.RefObject<HTMLDivElement | null>;
+  containerRef: React.RefObject<HTMLDivElement>;
   isHovered: boolean;
   hideLogo?: UrlQueryValue;
 }

public/app/features/dashboard/components/TransformationsEditor/TransformationsEditor.tsx

@@ -61,7 +61,7 @@ interface State {
 
 class UnThemedTransformationsEditor extends React.PureComponent<TransformationsEditorProps, State> {
   subscription?: Unsubscribable;
-  ref: RefObject<HTMLDivElement | null>;
+  ref: RefObject<HTMLDivElement>;
 
   constructor(props: TransformationsEditorProps) {
     super(props);

public/app/features/library-panels/components/LibraryPanelsView/LibraryPanelsView.tsx

@@ -43,7 +43,7 @@ export const LibraryPanelsView = ({
     }
   );
   const asyncDispatch = useMemo(() => asyncDispatcher(dispatch), [dispatch]);
-  const abortControllerRef = useRef<AbortController | null>(null);
+  const abortControllerRef = useRef<AbortController>();
 
   useDebounce(
     () => {

public/app/features/live/LiveConnectionWarning.tsx

@@ -12,7 +12,7 @@ export interface Props {}
 
 export const LiveConnectionWarning = memo(function LiveConnectionWarning() {
   const [show, setShow] = useState<boolean | undefined>(undefined);
-  const subscriptionRef = useRef<Unsubscribable | null>(null);
+  const subscriptionRef = useRef<Unsubscribable>();
   const styles = useStyles2(getStyle);
 
   useEffect(() => {

public/app/features/panel/components/PanelDataErrorView.test.tsx

@@ -2,8 +2,9 @@ import { render, screen } from '@testing-library/react';
 import { defaultsDeep } from 'lodash';
 import { Provider } from 'react-redux';
 
-import { FieldType, getDefaultTimeRange, LoadingState } from '@grafana/data';
-import { PanelDataErrorViewProps } from '@grafana/runtime';
+import { CoreApp, EventBusSrv, FieldType, getDefaultTimeRange, LoadingState } from '@grafana/data';
+import { config, PanelDataErrorViewProps } from '@grafana/runtime';
+import { usePanelContext } from '@grafana/ui';
 import { configureStore } from 'app/store/configureStore';
 
 import { PanelDataErrorView } from './PanelDataErrorView';
@@ -16,7 +17,24 @@ jest.mock('app/features/dashboard/services/DashboardSrv', () => ({
   },
 }));
 
+jest.mock('@grafana/ui', () => ({
+  ...jest.requireActual('@grafana/ui'),
+  usePanelContext: jest.fn(),
+}));
+
+const mockUsePanelContext = jest.mocked(usePanelContext);
+const RUN_QUERY_MESSAGE = 'Run a query to visualize it here or go to all visualizations to add other panel types';
+const panelContextRoot = {
+  app: CoreApp.Dashboard,
+  eventsScope: 'global',
+  eventBus: new EventBusSrv(),
+};
+
 describe('PanelDataErrorView', () => {
+  beforeEach(() => {
+    mockUsePanelContext.mockReturnValue(panelContextRoot);
+  });
+
   it('show No data when there is no data', () => {
     renderWithProps();
 
@@ -70,6 +88,45 @@ describe('PanelDataErrorView', () => {
 
     expect(screen.getByText('Query returned nothing')).toBeInTheDocument();
   });
+
+  it('should show "Run a query..." message when no query is configured and feature toggle is enabled', () => {
+    mockUsePanelContext.mockReturnValue(panelContextRoot);
+
+    const originalFeatureToggle = config.featureToggles.newVizSuggestions;
+    config.featureToggles.newVizSuggestions = true;
+
+    renderWithProps({
+      data: {
+        state: LoadingState.Done,
+        series: [],
+        timeRange: getDefaultTimeRange(),
+      },
+    });
+
+    expect(screen.getByText(RUN_QUERY_MESSAGE)).toBeInTheDocument();
+
+    config.featureToggles.newVizSuggestions = originalFeatureToggle;
+  });
+
+  it('should show "No data" message when feature toggle is disabled even without queries', () => {
+    mockUsePanelContext.mockReturnValue(panelContextRoot);
+
+    const originalFeatureToggle = config.featureToggles.newVizSuggestions;
+    config.featureToggles.newVizSuggestions = false;
+
+    renderWithProps({
+      data: {
+        state: LoadingState.Done,
+        series: [],
+        timeRange: getDefaultTimeRange(),
+      },
+    });
+
+    expect(screen.getByText('No data')).toBeInTheDocument();
+    expect(screen.queryByText(RUN_QUERY_MESSAGE)).not.toBeInTheDocument();
+
+    config.featureToggles.newVizSuggestions = originalFeatureToggle;
+  });
 });
 
 function renderWithProps(overrides?: Partial<PanelDataErrorViewProps>) {

public/app/features/panel/components/PanelDataErrorView.tsx

@@ -5,14 +5,15 @@ import {
   FieldType,
   getPanelDataSummary,
   GrafanaTheme2,
+  PanelData,
   PanelDataSummary,
   PanelPluginVisualizationSuggestion,
 } from '@grafana/data';
 import { selectors } from '@grafana/e2e-selectors';
 import { t, Trans } from '@grafana/i18n';
-import { PanelDataErrorViewProps, locationService } from '@grafana/runtime';
+import { PanelDataErrorViewProps, locationService, config } from '@grafana/runtime';
 import { VizPanel } from '@grafana/scenes';
-import { usePanelContext, useStyles2 } from '@grafana/ui';
+import { Icon, usePanelContext, useStyles2 } from '@grafana/ui';
 import { CardButton } from 'app/core/components/CardButton';
 import { LS_VISUALIZATION_SELECT_TAB_KEY } from 'app/core/constants';
 import store from 'app/core/store';
@@ -24,6 +25,11 @@ import { findVizPanelByKey, getVizPanelKeyForPanelId } from 'app/features/dashbo
 import { useDispatch } from 'app/types/store';
 
 import { changePanelPlugin } from '../state/actions';
+import { hasData } from '../suggestions/utils';
+
+function hasNoQueryConfigured(data: PanelData): boolean {
+  return !data.request?.targets || data.request.targets.length === 0;
+}
 
 export function PanelDataErrorView(props: PanelDataErrorViewProps) {
   const styles = useStyles2(getStyles);
@@ -93,8 +99,14 @@ export function PanelDataErrorView(props: PanelDataErrorViewProps) {
     }
   };
 
+  const noData = !hasData(props.data);
+  const noQueryConfigured = hasNoQueryConfigured(props.data);
+  const showEmptyState =
+    config.featureToggles.newVizSuggestions && context.app === CoreApp.PanelEditor && noQueryConfigured && noData;
+
   return (
     <div className={styles.wrapper}>
+      {showEmptyState && <Icon name="chart-line" size="xxxl" className={styles.emptyStateIcon} />}
       <div className={styles.message} data-testid={selectors.components.Panels.Panel.PanelDataErrorMessage}>
         {message}
       </div>
@@ -131,7 +143,17 @@ function getMessageFor(
     return message;
   }
 
-  if (!data.series || data.series.length === 0 || data.series.every((frame) => frame.length === 0)) {
+  const noData = !hasData(data);
+  const noQueryConfigured = hasNoQueryConfigured(data);
+
+  if (config.featureToggles.newVizSuggestions && noQueryConfigured && noData) {
+    return t(
+      'dashboard.new-panel.empty-state-message',
+      'Run a query to visualize it here or go to all visualizations to add other panel types'
+    );
+  }
+
+  if (noData) {
     return fieldConfig?.defaults.noValue ?? t('panel.panel-data-error-view.no-value.default', 'No data');
   }
 
@@ -176,5 +198,9 @@ const getStyles = (theme: GrafanaTheme2) => {
       width: '100%',
       maxWidth: '600px',
     }),
+    emptyStateIcon: css({
+      color: theme.colors.text.secondary,
+      marginBottom: theme.spacing(2),
+    }),
   };
 };

public/app/features/search/hooks/useSearchKeyboardSelection.ts

@@ -38,7 +38,7 @@ export function useSearchKeyboardNavigation(
 ): ItemSelection {
   const highlightIndexRef = useRef<ItemSelection>({ x: 0, y: -1 });
   const [highlightIndex, setHighlightIndex] = useState<ItemSelection>({ x: 0, y: -1 });
-  const urlsRef = useRef<Field | null>(null);
+  const urlsRef = useRef<Field>();
 
   // Clear selection when the search results change
   useEffect(() => {

public/app/features/transformers/suggestionsInput/SuggestionsInput.tsx

@@ -77,7 +77,7 @@ export const SuggestionsInput = ({
   const theme = useTheme2();
   const styles = getStyles(theme, inputHeight);
 
-  const inputRef = useRef<HTMLInputElement | HTMLTextAreaElement | null>(null);
+  const inputRef = useRef<HTMLInputElement | HTMLTextAreaElement>();
 
   useEffect(() => {
     scrollRef.current?.scrollTo(0, scrollTop);

public/app/features/variables/pickers/shared/VariableOptions.tsx

@@ -11,7 +11,7 @@ import checkboxWhitePng from 'img/checkbox_white.png';
 
 import { ALL_VARIABLE_VALUE } from '../../constants';
 
-export interface Props extends Omit<React.HTMLProps<HTMLUListElement>, 'onToggle'>, Themeable2 {
+export interface Props extends React.HTMLProps<HTMLUListElement>, Themeable2 {
   multi: boolean;
   values: VariableOption[];
   selectedValues: VariableOption[];

public/app/plugins/datasource/cloudwatch/components/QueryEditor/LogsQueryEditor/code-editors/LogsQLCodeEditor.tsx

@@ -20,8 +20,8 @@ interface CodeEditorProps {
 export const LogsQLCodeEditor = (props: CodeEditorProps) => {
   const { query, datasource, onChange } = props;
 
-  const monacoRef = useRef<Monaco | null>(null);
-  const disposalRef = useRef<monacoType.IDisposable | undefined>(undefined);
+  const monacoRef = useRef<Monaco>();
+  const disposalRef = useRef<monacoType.IDisposable>();
 
   const onFocus = useCallback(async () => {
     disposalRef.current = await reRegisterCompletionProvider(

public/app/plugins/datasource/cloudwatch/components/QueryEditor/LogsQueryEditor/code-editors/PPLQueryEditor.tsx

@@ -42,8 +42,8 @@ interface LogsCodeEditorProps {
 export const PPLQueryEditor = (props: LogsCodeEditorProps) => {
   const { query, datasource, onChange } = props;
 
-  const monacoRef = useRef<Monaco | null>(null);
-  const disposalRef = useRef<monacoType.IDisposable | undefined>(undefined);
+  const monacoRef = useRef<Monaco>();
+  const disposalRef = useRef<monacoType.IDisposable>();
 
   const onFocus = useCallback(async () => {
     disposalRef.current = await reRegisterCompletionProvider(

public/app/plugins/datasource/cloudwatch/components/QueryEditor/LogsQueryEditor/code-editors/SQLCodeEditor.tsx

@@ -20,8 +20,8 @@ interface SQLCodeEditorProps {
 export const SQLQueryEditor = (props: SQLCodeEditorProps) => {
   const { query, datasource, onChange } = props;
 
-  const monacoRef = useRef<Monaco | null>(null);
-  const disposalRef = useRef<monacoType.IDisposable | undefined>(undefined);
+  const monacoRef = useRef<Monaco>();
+  const disposalRef = useRef<monacoType.IDisposable>();
 
   const onFocus = useCallback(async () => {
     disposalRef.current = await reRegisterCompletionProvider(

public/app/plugins/datasource/elasticsearch/components/QueryEditor/EditorTypeSelector.tsx

@@ -1,29 +1,26 @@
 import { SelectableValue } from '@grafana/data';
 import { RadioButtonGroup } from '@grafana/ui';
 
-import { useDispatch } from '../../hooks/useStatelessReducer';
 import { EditorType } from '../../types';
 
-import { useQuery } from './ElasticsearchQueryContext';
-import { changeEditorTypeAndResetQuery } from './state';
-
 const BASE_OPTIONS: Array<SelectableValue<EditorType>> = [
   { value: 'builder', label: 'Builder' },
   { value: 'code', label: 'Code' },
 ];
 
-export const EditorTypeSelector = () => {
-  const query = useQuery();
-  const dispatch = useDispatch();
-
-  // Default to 'builder' if editorType is empty
-  const editorType: EditorType = query.editorType === 'code' ? 'code' : 'builder';
-
-  const onChange = (newEditorType: EditorType) => {
-    dispatch(changeEditorTypeAndResetQuery(newEditorType));
-  };
+interface Props {
+  value: EditorType;
+  onChange: (editorType: EditorType) => void;
+}
 
+export const EditorTypeSelector = ({ value, onChange }: Props) => {
   return (
-    <RadioButtonGroup<EditorType> fullWidth={false} options={BASE_OPTIONS} value={editorType} onChange={onChange} />
+    <RadioButtonGroup<EditorType>
+      data-testid="elasticsearch-editor-type-toggle"
+      size="sm"
+      options={BASE_OPTIONS}
+      value={value}
+      onChange={onChange}
+    />
   );
 };

public/app/plugins/datasource/elasticsearch/components/QueryEditor/RawQueryEditor.tsx

@@ -10,9 +10,13 @@ interface Props {
   onRunQuery: () => void;
 }
 
+// This offset was chosen by testing to match Prometheus behavior
+const EDITOR_HEIGHT_OFFSET = 2;
+
 export function RawQueryEditor({ value, onChange, onRunQuery }: Props) {
   const styles = useStyles2(getStyles);
   const editorRef = useRef<monacoTypes.editor.IStandaloneCodeEditor | null>(null);
+  const containerRef = useRef<HTMLDivElement | null>(null);
 
   const handleEditorDidMount = useCallback(
     (editor: monacoTypes.editor.IStandaloneCodeEditor, monaco: Monaco) => {
@@ -22,6 +26,22 @@ export function RawQueryEditor({ value, onChange, onRunQuery }: Props) {
       editor.addCommand(monaco.KeyMod.CtrlCmd | monaco.KeyCode.Enter, () => {
         onRunQuery();
       });
+
+      // Make the editor resize itself so that the content fits (grows taller when necessary)
+      // this code comes from the Prometheus query editor.
+      // We may wish to consider abstracting it into the grafana/ui repo in the future
+      const updateElementHeight = () => {
+        const containerDiv = containerRef.current;
+        if (containerDiv !== null) {
+          const pixelHeight = editor.getContentHeight();
+          containerDiv.style.height = `${pixelHeight + EDITOR_HEIGHT_OFFSET}px`;
+          const pixelWidth = containerDiv.clientWidth;
+          editor.layout({ width: pixelWidth, height: pixelHeight });
+        }
+      };
+
+      editor.onDidContentSizeChange(updateElementHeight);
+      updateElementHeight();
     },
     [onRunQuery]
   );
@@ -65,7 +85,17 @@ export function RawQueryEditor({ value, onChange, onRunQuery }: Props) {
 
   return (
     <Box>
-      <div className={styles.header}>
+      <div ref={containerRef} className={styles.editorContainer}>
+        <CodeEditor
+          value={value ?? ''}
+          language="json"
+          width="100%"
+          onBlur={handleQueryChange}
+          monacoOptions={monacoOptions}
+          onEditorDidMount={handleEditorDidMount}
+        />
+      </div>
+      <div className={styles.footer}>
         <Stack gap={1}>
           <Button
             size="sm"
@@ -76,20 +106,8 @@ export function RawQueryEditor({ value, onChange, onRunQuery }: Props) {
           >
             Format
           </Button>
-          <Button size="sm" variant="primary" icon="play" onClick={onRunQuery} tooltip="Run query (Ctrl/Cmd+Enter)">
-            Run
-          </Button>
         </Stack>
       </div>
-      <CodeEditor
-        value={value ?? ''}
-        language="json"
-        height={200}
-        width="100%"
-        onBlur={handleQueryChange}
-        monacoOptions={monacoOptions}
-        onEditorDidMount={handleEditorDidMount}
-      />
     </Box>
   );
 }
@@ -100,7 +118,11 @@ const getStyles = (theme: GrafanaTheme2) => ({
     flexDirection: 'column',
     gap: theme.spacing(1),
   }),
-  header: css({
+  editorContainer: css({
+    width: '100%',
+    overflow: 'hidden',
+  }),
+  footer: css({
     display: 'flex',
     justifyContent: 'flex-end',
     padding: theme.spacing(0.5, 0),

public/app/plugins/datasource/elasticsearch/components/QueryEditor/index.tsx

@@ -1,16 +1,16 @@
 import { css } from '@emotion/css';
-import { useEffect, useId, useState } from 'react';
+import { useCallback, useEffect, useId, useState } from 'react';
 import { SemVer } from 'semver';
 
 import { getDefaultTimeRange, GrafanaTheme2, QueryEditorProps } from '@grafana/data';
 import { config } from '@grafana/runtime';
-import { Alert, InlineField, InlineLabel, Input, QueryField, useStyles2 } from '@grafana/ui';
+import { Alert, ConfirmModal, InlineField, InlineLabel, Input, QueryField, useStyles2 } from '@grafana/ui';
 
 import { ElasticsearchDataQuery } from '../../dataquery.gen';
 import { ElasticDatasource } from '../../datasource';
 import { useNextId } from '../../hooks/useNextId';
 import { useDispatch } from '../../hooks/useStatelessReducer';
-import { ElasticsearchOptions } from '../../types';
+import { EditorType, ElasticsearchOptions } from '../../types';
 import { isSupportedVersion, isTimeSeriesQuery, unsupportedVersionMessage } from '../../utils';
 
 import { BucketAggregationsEditor } from './BucketAggregationsEditor';
@@ -20,7 +20,7 @@ import { MetricAggregationsEditor } from './MetricAggregationsEditor';
 import { metricAggregationConfig } from './MetricAggregationsEditor/utils';
 import { QueryTypeSelector } from './QueryTypeSelector';
 import { RawQueryEditor } from './RawQueryEditor';
-import { changeAliasPattern, changeQuery, changeRawDSLQuery } from './state';
+import { changeAliasPattern, changeEditorTypeAndResetQuery, changeQuery, changeRawDSLQuery } from './state';
 
 export type ElasticQueryEditorProps = QueryEditorProps<ElasticDatasource, ElasticsearchDataQuery, ElasticsearchOptions>;
 
@@ -97,31 +97,61 @@ const QueryEditorForm = ({ value, onRunQuery }: Props & { onRunQuery: () => void
   const inputId = useId();
   const styles = useStyles2(getStyles);
 
+  const [switchModalOpen, setSwitchModalOpen] = useState(false);
+  const [pendingEditorType, setPendingEditorType] = useState<EditorType | null>(null);
+
   const isTimeSeries = isTimeSeriesQuery(value);
 
   const isCodeEditor = value.editorType === 'code';
   const rawDSLFeatureEnabled = config.featureToggles.elasticsearchRawDSLQuery;
 
+  // Default to 'builder' if editorType is empty
+  const currentEditorType: EditorType = value.editorType === 'code' ? 'code' : 'builder';
+
   const showBucketAggregationsEditor = value.metrics?.every(
     (metric) => metricAggregationConfig[metric.type].impliedQueryType === 'metrics'
   );
 
+  const onEditorTypeChange = useCallback((newEditorType: EditorType) => {
+    // Show warning modal when switching modes
+    setPendingEditorType(newEditorType);
+    setSwitchModalOpen(true);
+  }, []);
+
+  const confirmEditorTypeChange = useCallback(() => {
+    if (pendingEditorType) {
+      dispatch(changeEditorTypeAndResetQuery(pendingEditorType));
+    }
+    setSwitchModalOpen(false);
+    setPendingEditorType(null);
+  }, [dispatch, pendingEditorType]);
+
+  const cancelEditorTypeChange = useCallback(() => {
+    setSwitchModalOpen(false);
+    setPendingEditorType(null);
+  }, []);
+
   return (
     <>
+      <ConfirmModal
+        isOpen={switchModalOpen}
+        title="Switch editor"
+        body="Switching between editors will reset your query. Are you sure you want to continue?"
+        confirmText="Continue"
+        onConfirm={confirmEditorTypeChange}
+        onDismiss={cancelEditorTypeChange}
+      />
       <div className={styles.root}>
         <InlineLabel width={17}>Query type</InlineLabel>
         <div className={styles.queryItem}>
           <QueryTypeSelector />
         </div>
-      </div>
-      {rawDSLFeatureEnabled && (
-        <div className={styles.root}>
-          <InlineLabel width={17}>Editor type</InlineLabel>
-          <div className={styles.queryItem}>
-            <EditorTypeSelector />
+        {rawDSLFeatureEnabled && (
+          <div style={{ marginLeft: 'auto' }}>
+            <EditorTypeSelector value={currentEditorType} onChange={onEditorTypeChange} />
           </div>
-        </div>
-      )}
+        )}
+      </div>
 
       {isCodeEditor && rawDSLFeatureEnabled && (
         <RawQueryEditor

public/app/plugins/datasource/grafana-pyroscope-datasource/QueryEditor/LabelsEditor.tsx

@@ -94,7 +94,7 @@ const EDITOR_HEIGHT_OFFSET = 2;
  * Hook that returns function that will set up monaco autocomplete for the label selector
  */
 function useAutocomplete(getLabelValues: (label: string) => Promise<string[]>, labels?: string[]) {
-  const providerRef = useRef<CompletionProvider | null>(null);
+  const providerRef = useRef<CompletionProvider>();
   if (providerRef.current === undefined) {
     providerRef.current = new CompletionProvider();
   }

public/app/plugins/datasource/loki/components/LokiContextUi.tsx

@@ -126,7 +126,7 @@ export function LokiContextUi(props: LokiContextUiProps) {
     window.localStorage.getItem(SHOULD_INCLUDE_PIPELINE_OPERATIONS) === 'true'
   );
 
-  const timerHandle = useRef<number | null>(null);
+  const timerHandle = useRef<number>();
   const previousInitialized = useRef<boolean>(false);
   const previousContextFilters = useRef<ContextFilter[]>([]);
 
@@ -191,18 +191,14 @@ export function LokiContextUi(props: LokiContextUiProps) {
     }, 1500);
 
     return () => {
-      if (timerHandle.current) {
-        clearTimeout(timerHandle.current);
-      }
+      clearTimeout(timerHandle.current);
     };
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [contextFilters, initialized]);
 
   useEffect(() => {
     return () => {
-      if (timerHandle.current) {
-        clearTimeout(timerHandle.current);
-      }
+      clearTimeout(timerHandle.current);
       onClose();
     };
   }, [onClose]);

public/app/plugins/datasource/tempo/traceql/TraceQLEditor.tsx

@@ -52,7 +52,7 @@ export function TraceQLEditor(props: Props) {
   const onRunQueryRef = useRef(onRunQuery);
   onRunQueryRef.current = onRunQuery;
 
-  const errorTimeoutId = useRef<number | null>(null);
+  const errorTimeoutId = useRef<number>();
 
   return (
     <>
@@ -103,9 +103,7 @@ export function TraceQLEditor(props: Props) {
             }
 
             // Remove previous callback if existing, to prevent squiggles from been shown while the user is still typing
-            if (errorTimeoutId.current) {
-              window.clearTimeout(errorTimeoutId.current);
-            }
+            window.clearTimeout(errorTimeoutId.current);
 
             const errorNodes = getErrorNodes(model.getValue());
             const cursorPosition = changeEvent.changes[0].rangeOffset;

public/app/plugins/panel/heatmap/renderHistogram.tsx

@@ -1,5 +1,5 @@
 export function renderHistogram(
-  can: React.RefObject<HTMLCanvasElement | null>,
+  can: React.RefObject<HTMLCanvasElement>,
   histCanWidth: number,
   histCanHeight: number,
   xVals: number[],

public/app/plugins/panel/logs/LogsPanel.tsx

@@ -196,7 +196,7 @@ export const LogsPanel = ({
   const dataSourcesMap = useDatasourcesFromTargets(panelData.request?.targets);
   // Prevents the scroll position to change when new data from infinite scrolling is received
   const keepScrollPositionRef = useRef<null | 'infinite-scroll' | 'user'>(null);
-  const closeCallback = useRef<(() => void) | null>(null);
+  let closeCallback = useRef<() => void>();
   const { app, eventBus, onAddAdHocFilter } = usePanelContext();
 
   useEffect(() => {

public/app/plugins/panel/nodeGraph/layout.ts

@@ -70,7 +70,7 @@ export function useLayout(
   const currentSignature = createDataSignature(rawNodes, rawEdges);
 
   const isMounted = useMountedState();
-  const layoutWorkerCancelRef = useRef<(() => void) | null>(null);
+  const layoutWorkerCancelRef = useRef<(() => void) | undefined>();
 
   useUnmount(() => {
     if (layoutWorkerCancelRef.current) {

public/app/plugins/panel/timeseries/plugins/AnnotationsPlugin2.tsx

@@ -133,7 +133,7 @@ export const AnnotationsPlugin2 = ({
   const newRangeRef = useRef(newRange);
   newRangeRef.current = newRange;
 
-  const xAxisRef = useRef<HTMLDivElement | null>(null);
+  const xAxisRef = useRef<HTMLDivElement>();
 
   useLayoutEffect(() => {
     config.addHook('ready', (u) => {

public/app/plugins/panel/timeseries/plugins/ExemplarsPlugin.tsx

@@ -23,7 +23,7 @@ export const ExemplarsPlugin = ({
   maxHeight,
   maxWidth,
 }: ExemplarsPluginProps) => {
-  const plotInstance = useRef<uPlot | null>(null);
+  const plotInstance = useRef<uPlot>();
 
   const [lockedExemplarRowIndex, setLockedExemplarRowIndex] = useState<number | undefined>();
 

public/app/plugins/panel/timeseries/plugins/OutsideRangePlugin.tsx

@@ -11,7 +11,7 @@ interface ThresholdControlsPluginProps {
 }
 
 export const OutsideRangePlugin = ({ config, onChangeTimeRange }: ThresholdControlsPluginProps) => {
-  const plotInstance = useRef<uPlot | null>(null);
+  const plotInstance = useRef<uPlot>();
   const [timevalues, setTimeValues] = useState<number[] | TypedArray>([]);
   const [timeRange, setTimeRange] = useState<Scale | undefined>();
 

public/app/plugins/panel/timeseries/plugins/ThresholdControlsPlugin.tsx

@@ -16,7 +16,7 @@ interface ThresholdControlsPluginProps {
 }
 
 export const ThresholdControlsPlugin = ({ config, fieldConfig, onThresholdsChange }: ThresholdControlsPluginProps) => {
-  const plotInstance = useRef<uPlot | null>(null);
+  const plotInstance = useRef<uPlot>();
   const [renderToken, setRenderToken] = useState(0);
 
   useLayoutEffect(() => {

public/locales/en-US/grafana.json

@@ -6383,12 +6383,15 @@
     },
     "resource-export": {
       "label": {
+        "advanced-options": "Advanced options",
         "classic": "Classic",
         "json": "JSON",
         "v1-resource": "V1 Resource",
         "v2-resource": "V2 Resource",
         "yaml": "YAML"
-      }
+      },
+      "share-externally": "Share dashboard with another instance",
+      "share-externally-tooltip": "Removes all instance-specific metadata and data source references from the resource before export."
     },
     "revert-dashboard-modal": {
       "body-restore-version": "Are you sure you want to restore the dashboard to version {{version}}? All unsaved changes will be lost.",
@@ -7842,7 +7845,6 @@
       "export-externally-label": "Export the dashboard to use in another instance",
       "export-format": "Format",
       "export-mode": "Model",
-      "export-remove-ds-refs": "Remove deployment details",
       "info-text": "Copy or download a file containing the definition of your dashboard",
       "title": "Export dashboard"
     },