Studio: Add a warning when pushing a site with an outdated WordPress version

src/lib/version-utils.ts

@@ -17,3 +17,17 @@ export function isDevRelease( version: string ): boolean {
 export function isWordPressDevVersion( version: string ): boolean {
 	return /^\d+\.\d+-[a-zA-Z0-9]+-\d+$/.test( version );
 }
+
+/**
+ * Gets the latest stable WordPress version from a list of WordPress versions
+ * Filters out 'latest', beta, and development versions to find the first stable release
+ * @param versions Array of WordPress version objects
+ * @returns The version string of the latest stable release, or undefined if none found
+ */
+export function getLatestStableWpVersion(
+	versions: Array< { value: string; isBeta: boolean; isDevelopment: boolean } >
+): string | undefined {
+	return versions.find(
+		( version ) => version.value !== 'latest' && ! version.isBeta && ! version.isDevelopment
+	)?.value;
+}

src/modules/preview-site/components/create-preview-button.tsx

@@ -8,9 +8,9 @@ import { Tooltip } from 'src/components/tooltip';
 import { useGetWpVersion } from 'src/hooks/use-get-wp-version';
 import { useOffline } from 'src/hooks/use-offline';
 import { useSiteSize } from 'src/hooks/use-site-size';
+import { getLatestStableWpVersion } from 'src/lib/version-utils';
 import { hasVersionMismatch } from 'src/modules/preview-site/lib/version-comparison';
 import { useRootSelector } from 'src/stores';
-import { selectMinimumWordPressVersion } from 'src/stores/provider-constants-slice';
 import { snapshotSelectors } from 'src/stores/snapshot-slice';
 import { useGetWordPressVersions } from 'src/stores/wordpress-versions-api';
 import { useGetSnapshotUsage } from 'src/stores/wpcom-api';
@@ -42,16 +42,15 @@ export function CreatePreviewButton( { onClick, selectedSite, user }: CreatePrev
 	const { isOverLimit } = useSiteSize( selectedSite.id );
 	const isOffline = useOffline();
 	const [ wpVersion ] = useGetWpVersion( selectedSite );
-	const minimumWordPressVersion = useRootSelector( selectMinimumWordPressVersion );
 	const { data: wpVersions = [] } = useGetWordPressVersions( {
-		minimumVersion: minimumWordPressVersion,
+		minimumVersion: '',
 	} );
 
 	const isAnySiteArchiving = !! activeOperationsForAnySite.length;
 	const isCurrentSiteArchiving = !! activeOperationsForCurrentSite;
 	const isOtherSiteArchiving = isAnySiteArchiving && ! isCurrentSiteArchiving;
 
-	const latestWpVersion = wpVersions.find( ( version ) => version.value === 'latest' )?.value;
+	const latestWpVersion = getLatestStableWpVersion( wpVersions );
 	const shouldShowMismatchTooltip = hasVersionMismatch( {
 		wpVersion,
 		latestWpVersion,

src/modules/sync/components/sync-dialog.tsx

@@ -12,16 +12,20 @@ import { TwoColorProgressBar } from 'src/components/progress-bar';
 import { Tooltip } from 'src/components/tooltip';
 import { TreeView, TreeNode, updateNodeById } from 'src/components/tree-view';
 import { SYNC_PUSH_SIZE_LIMIT_GB } from 'src/constants';
+import { useGetWpVersion } from 'src/hooks/use-get-wp-version';
 import { cx } from 'src/lib/cx';
 import { getIpcApi } from 'src/lib/get-ipc-api';
 import { getLocalizedLink } from 'src/lib/get-localized-link';
+import { getLatestStableWpVersion } from 'src/lib/version-utils';
+import { hasVersionMismatch } from 'src/modules/preview-site/lib/version-comparison';
 import { SiteNameBox } from 'src/modules/sync/components/site-name-box';
 import { useSelectedItemsPushSize } from 'src/modules/sync/hooks/use-selected-items-push-size';
 import { useSyncDialogTexts } from 'src/modules/sync/hooks/use-sync-dialog-texts';
 import { useTopLevelSyncTree } from 'src/modules/sync/hooks/use-top-level-sync-tree';
 import { getSiteEnvironment } from 'src/modules/sync/lib/environment-utils';
 import { useI18nLocale } from 'src/stores';
 import { useLatestRewindId, useRemoteFileTree, useLocalFileTree } from 'src/stores/sync';
+import { useGetWordPressVersions } from 'src/stores/wordpress-versions-api';
 import { TreeViewLoadingSkeleton } from './tree-view-loading-skeleton';
 import type { SyncSite } from 'src/hooks/use-fetch-wpcom-sites/types';
 
@@ -154,6 +158,19 @@ export function SyncDialog( {
 	const { fetchChildren, rewindId, isLoadingRewindId, isErrorRewindId, isLoadingLocalFileTree } =
 		useDynamicTreeState( type, localSite.id, remoteSite.id, setTreeState );
 
+	const [ wpVersion ] = useGetWpVersion( localSite );
+	const { data: wpVersions = [] } = useGetWordPressVersions( {
+		minimumVersion: '',
+	} );
+	const latestWpVersion = getLatestStableWpVersion( wpVersions );
+	const shouldShowVersionMismatch =
+		type === 'push' &&
+		hasVersionMismatch( {
+			wpVersion,
+			latestWpVersion,
+			phpVersion: localSite.phpVersion,
+		} );
+
 	const localSiteName = <SiteNameBox siteName={ localSite.name } envType="studio" />;
 	const remoteSiteName = <SiteNameBox siteName={ remoteSite.name } envType={ siteEnv } />;
 
@@ -227,10 +244,18 @@ export function SyncDialog( {
 		if ( type === 'pull' ) {
 			return 'pb-[70px]'; // Original padding for pull
 		}
-		if ( isPushSelectionOverLimit ) {
-			return 'pb-[200px]'; // Progress bar + warning notice
+		// Calculate dynamic padding based on number of notices shown
+		const noticeCount = [ isPushSelectionOverLimit, shouldShowVersionMismatch ].filter(
+			Boolean
+		).length;
+
+		if ( noticeCount === 0 ) {
+			return 'pb-[140px]'; // Just progress bar
 		}
-		return 'pb-[110px]'; // Just progress bar
+		if ( noticeCount === 1 ) {
+			return 'pb-[220px]'; // Progress bar + one notice
+		}
+		return 'pb-[300px]'; // Progress bar + two notices
 	};
 
 	return (
@@ -336,7 +361,7 @@ export function SyncDialog( {
 					</div>
 				</Tooltip>
 
-				<div className="px-8 py-4 absolute left-0 right-0 bottom-0 bg-white z-10 border-t border-a8c-gray-5">
+				<div className="px-8 py-4 absolute left-0 right-0 bottom-0 bg-white/[0.8] backdrop-blur-sm z-10 border-t border-a8c-gray-5">
 					{ type === 'push' && (
 						<div className="mb-4">
 							<TwoColorProgressBar
@@ -361,6 +386,15 @@ export function SyncDialog( {
 							</p>
 						</Notice>
 					) }
+					{ shouldShowVersionMismatch && (
+						<Notice status="warning" isDismissible={ false } className="mb-4">
+							<p data-testid="push-version-mismatch-notice">
+								{ __(
+									'Your Studio site is using a different WordPress or PHP version than your WordPress.com site. The remote site will keep on using the newest supported versions.'
+								) }
+							</p>
+						</Notice>
+					) }
 					<div className="flex justify-between items-center">
 						<div>
 							{ createInterpolateElement( syncTexts.envSync, {

src/modules/sync/tests/index.test.tsx

@@ -140,6 +140,7 @@ describe( 'ContentTabSync', () => {
 			getConnectedWpcomSites: jest.fn().mockResolvedValue( [] ),
 			getDirectorySize: jest.fn().mockResolvedValue( 0 ),
 			connectWpcomSites: jest.fn(),
+			getWpVersion: jest.fn().mockResolvedValue( '6.4.3' ),
 			listLocalFileTree: jest.fn().mockResolvedValue( [
 				{
 					name: 'plugins',