diff --git a/wled00/data/index.css b/wled00/data/index.css
index c92c884abb..75ea796902 100644
--- a/wled00/data/index.css
+++ b/wled00/data/index.css
@@ -794,7 +794,7 @@ input[type=range]::-moz-range-thumb {
 /* buttons */
 .btn {
 	padding: 8px;
-	/*margin: 10px 4px;*/
+	margin: 10px 4px;
 	width: 230px;
 	font-size: 19px;
 	color: var(--c-d);
diff --git a/wled00/data/index.js b/wled00/data/index.js
index 2d49a26400..fe011dce37 100644
--- a/wled00/data/index.js
+++ b/wled00/data/index.js
@@ -693,6 +693,8 @@ function parseInfo(i) {
 //		gId("filterVol").classList.add("hide"); hideModes(" ♪"); // hide volume reactive effects
 //		gId("filterFreq").classList.add("hide"); hideModes(" ♫"); // hide frequency reactive effects
 //	}
+	// Check for version upgrades on page load
+	checkVersionUpgrade(i);
 }
 
 //https://stackoverflow.com/questions/2592092/executing-script-elements-inserted-with-innerhtml
@@ -3304,6 +3306,195 @@ function simplifyUI() {
 	gId("btns").style.display = "none";
 }
 
+// Version reporting feature
+var versionCheckDone = false;
+
+function checkVersionUpgrade(info) {
+	// Only check once per page load
+	if (versionCheckDone) return;
+	versionCheckDone = true;
+
+	// Suppress feature if in AP mode (no internet connection available)
+	if (info.wifi && info.wifi.ap) return;
+
+	// Fetch version-info.json using existing /edit endpoint
+	fetch(getURL('/edit?func=edit&path=/version-info.json'), {
+		method: 'get'
+	})
+		.then(res => {
+			if (res.status === 404) {
+				// File doesn't exist - first install, show install prompt
+				showVersionUpgradePrompt(info, null, info.ver);
+				return null;
+			}
+			if (!res.ok) {
+				throw new Error('Failed to fetch version-info.json');
+			}
+			return res.json();
+		})
+		.then(versionInfo => {
+			if (!versionInfo) return; // 404 case already handled
+
+			// Check if user opted out
+			if (versionInfo.neverAsk) return;
+
+			// Check if version has changed
+			const currentVersion = info.ver;
+			const storedVersion = versionInfo.version || '';
+
+			if (storedVersion && storedVersion !== currentVersion) {
+				// Version has changed, show upgrade prompt
+				showVersionUpgradePrompt(info, storedVersion, currentVersion);
+			} else if (!storedVersion) {
+				// Empty version in file, show install prompt
+				showVersionUpgradePrompt(info, null, currentVersion);
+			}
+		})
+		.catch(e => {
+			console.log('Failed to load version-info.json', e);
+			// On error, save current version for next time
+			if (info && info.ver) {
+				updateVersionInfo(info.ver, false);
+			}
+		});
+}
+
+function showVersionUpgradePrompt(info, oldVersion, newVersion) {
+	// Determine if this is an install or upgrade
+	const isInstall = !oldVersion;
+
+	// Create overlay and dialog
+	const overlay = d.createElement('div');
+	overlay.id = 'versionUpgradeOverlay';
+	overlay.style.cssText = 'position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.7);z-index:10000;display:flex;align-items:center;justify-content:center;';
+
+	const dialog = d.createElement('div');
+	dialog.style.cssText = 'background:var(--c-1);border-radius:10px;padding:25px;max-width:500px;margin:20px;box-shadow:0 4px 6px rgba(0,0,0,0.3);';
+
+	// Build contextual message based on install vs upgrade
+	const title = isInstall
+		? '🎉 Thank you for installing WLED!'
+		: '🎉 WLED Upgrade Detected!';
+
+	const description = isInstall
+		? `You are now running WLED <strong style="text-wrap: nowrap">${newVersion}</strong>.`
+		: `Your WLED has been upgraded from <strong style="text-wrap: nowrap">${oldVersion}</strong> to <strong style="text-wrap: nowrap">${newVersion}</strong>.`;
+
+	const question = 'Help make WLED better with a one-time hardware report? It includes only device details like chip type, LED count, etc. — never personal data or your activities.'
+
+	dialog.innerHTML = `
+		<h2 style="margin-top:0;color:var(--c-f);">${title}</h2>
+		<p style="color:var(--c-f);">${description}</p>
+		<p style="color:var(--c-f);">${question}</p>
+		<p style="color:var(--c-f);font-size:0.9em;">
+			<a href="https://kno.wled.ge/about/privacy-policy/" target="_blank" style="color:var(--c-6);">Learn more about what data is collected and why</a>
+		</p>
+		<div style="margin-top:20px;">
+			<button id="versionReportYes" class="btn">Yes</button>
+			<button id="versionReportNo" class="btn">Not Now</button>
+			<button id="versionReportNever" class="btn">Never Ask</button>
+		</div>
+	`;
+
+	overlay.appendChild(dialog);
+	d.body.appendChild(overlay);
+
+	// Add event listeners
+	gId('versionReportYes').addEventListener('click', () => {
+		reportUpgradeEvent(info, oldVersion);
+		d.body.removeChild(overlay);
+	});
+
+	gId('versionReportNo').addEventListener('click', () => {
+		// Don't update version, will ask again on next load
+		d.body.removeChild(overlay);
+	});
+
+	gId('versionReportNever').addEventListener('click', () => {
+		updateVersionInfo(newVersion, true);
+		d.body.removeChild(overlay);
+		showToast('You will not be asked again.');
+	});
+}
+
+function reportUpgradeEvent(info, oldVersion) {
+	showToast('Reporting upgrade...');
+
+	// Fetch fresh data from /json/info endpoint as requested
+	fetch(getURL('/json/info'), {
+		method: 'get'
+	})
+		.then(res => res.json())
+		.then(infoData => {
+			// Map to UpgradeEventRequest structure per OpenAPI spec
+			// Required fields: deviceId, version, previousVersion, releaseName, chip, ledCount, isMatrix, bootloaderSHA256
+			const upgradeData = {
+				deviceId: infoData.deviceId,                     // Use anonymous unique device ID
+				version: infoData.ver || '',                     // Current version string
+				previousVersion: oldVersion || '',               // Previous version from version-info.json
+				releaseName: infoData.release || '',             // Release name (e.g., "WLED 0.15.0")
+				chip: infoData.arch || '',                       // Chip architecture (esp32, esp8266, etc)
+				ledCount: infoData.leds ? infoData.leds.count : 0,  // Number of LEDs
+				isMatrix: !!(infoData.leds && infoData.leds.matrix),  // Whether it's a 2D matrix setup
+				bootloaderSHA256: infoData.bootloaderSHA256 || '',   // Bootloader SHA256 hash
+				brand: infoData.brand,                           // Device brand (always present)
+				product: infoData.product,                       // Product name (always present)
+				flashSize: infoData.flash                        // Flash size (always present)
+			};
+
+			// Add optional fields if available
+			if (infoData.psram !== undefined) upgradeData.psramSize = infoData.psram;
+			// Note: partitionSizes not currently available in /json/info endpoint
+
+			// Make AJAX call to postUpgradeEvent API
+			return fetch('https://usage.wled.me/api/usage/upgrade', {
+				method: 'POST',
+				headers: {
+					'Content-Type': 'application/json'
+				},
+				body: JSON.stringify(upgradeData)
+			});
+		})
+		.then(res => {
+			if (res.ok) {
+				showToast('Thank you for reporting!');
+				updateVersionInfo(info.ver, false);
+			} else {
+				showToast('Report failed. Please try again later.', true);
+				// Do NOT update version info on failure - user will be prompted again
+			}
+		})
+		.catch(e => {
+			console.log('Failed to report upgrade', e);
+			showToast('Report failed. Please try again later.', true);
+			// Do NOT update version info on error - user will be prompted again
+		});
+}
+
+function updateVersionInfo(version, neverAsk) {
+	const versionInfo = {
+		version: version,
+		neverAsk: neverAsk
+	};
+
+	// Create a Blob with JSON content and use /upload endpoint
+	const blob = new Blob([JSON.stringify(versionInfo)], {type: 'application/json'});
+	const formData = new FormData();
+	formData.append('data', blob, 'version-info.json');
+
+	fetch(getURL('/upload'), {
+		method: 'POST',
+		body: formData
+	})
+		.then(res => res.text())
+		.then(data => {
+			console.log('Version info updated', data);
+		})
+		.catch(e => {
+			console.log('Failed to update version-info.json', e);
+		});
+}
+
 size();
 _C.style.setProperty('--n', N);