diff --git a/Gruntfile.js b/Gruntfile.js
index 489d54b0..df68e291 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -29,6 +29,7 @@ module.exports = function( grunt ) {
 			"src/effects.js",
 			"src/event.js",
 			"src/offset.js",
+			"src/serialize.js",
 			"src/traversing.js",
 			"src/deferred.js",
 			"src/outro.js"
diff --git a/src/serialize.js b/src/serialize.js
new file mode 100644
index 00000000..d3b076eb
--- /dev/null
+++ b/src/serialize.js
@@ -0,0 +1,14 @@
+
+var oldParam = jQuery.param;
+
+jQuery.param = function( data, traditional ) {
+	var ajaxTraditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;
+
+	if ( traditional === undefined && ajaxTraditional ) {
+
+		migrateWarn( "jQuery.param() no longer uses jQuery.ajaxSettings.traditional" );
+		traditional = ajaxTraditional;
+	}
+
+	return oldParam.call( this, data, traditional );
+};
diff --git a/test/index.html b/test/index.html
index 82f2ceef..3f61708c 100644
--- a/test/index.html
+++ b/test/index.html
@@ -32,6 +32,7 @@
 	<script src="data.js"></script>
 	<script src="event.js"></script>
 	<script src="offset.js"></script>
+	<script src="serialize.js"></script>
 	<script src="traversing.js"></script>
 	<script src="deferred.js"></script>
 	<script src="effects.js"></script>
diff --git a/test/serialize.js b/test/serialize.js
new file mode 100644
index 00000000..1136cc82
--- /dev/null
+++ b/test/serialize.js
@@ -0,0 +1,51 @@
+
+module( "serialize" );
+
+QUnit.test( "jQuery.param( x, traditional)", function( assert ) {
+	assert.expect( 12 );
+
+	var savedTraditional = jQuery.ajaxSettings.traditional,
+		data = { a: [ 1, 2 ] },
+		standardResult = "a%5B%5D=1&a%5B%5D=2",
+		traditionalResult = "a=1&a=2";
+
+	expectNoWarning( "default, traditional default", function() {
+		assert.equal(
+			jQuery.param( data ), standardResult,
+			"default, traditional default" );
+	} );
+
+	expectNoWarning( "explicit true, traditional default", function() {
+		assert.equal(
+			jQuery.param( data, true ), traditionalResult,
+			"explicit true, traditional default" );
+	} );
+
+	expectNoWarning( "explicit false, traditional default", function() {
+		assert.equal(
+			jQuery.param( data, false ), standardResult,
+			"explicit false, traditional default" );
+	} );
+
+	jQuery.ajaxSettings.traditional = true;
+
+	expectWarning( "default, traditional true", function() {
+		assert.equal(
+			jQuery.param( data ), traditionalResult,
+			"default, traditional true	" );
+	} );
+
+	expectNoWarning( "explicit true, traditional true", function() {
+		assert.equal(
+			jQuery.param( data, true ), traditionalResult,
+			"explicit true, traditional true" );
+	} );
+
+	expectNoWarning( "explicit false, traditional true", function() {
+		assert.equal(
+			jQuery.param( data, false ), standardResult,
+			"explicit false, traditional true" );
+	} );
+
+	jQuery.ajaxSettings.traditional = savedTraditional;
+} );
diff --git a/test/testinit.js b/test/testinit.js
index acb9c4e2..23e978e6 100644
--- a/test/testinit.js
+++ b/test/testinit.js
@@ -29,6 +29,7 @@ TestManager = {
 				"effects",
 				"event",
 				"offset",
+				"serialize",
 				"traversing",
 				"deferred"
 			];
diff --git a/warnings.md b/warnings.md
index d5ad7c49..43b82b46 100644
--- a/warnings.md
+++ b/warnings.md
@@ -97,6 +97,12 @@ This is _not_ a warning, but a console log message the plugin shows when it firs
 
 **Solution**: Do not attempt to get or set the offset information of invalid input.
 
+### JQMIGRATE: jQuery.param() no longer uses jQuery.ajaxSettings.traditional
+
+**Cause:** As of jQuery 3.0, the serialization method `jQuery.param` is fully independent of jQuery's ajax module. As a result, it does not look at the `jQuery.ajaxSettings.traditional` flag that affects how form data is encoded. Note that the `jQuery.ajax()` method still honors this flag if you make a request through it.
+
+**Solution:** To continue using the `traditional` flag, pass it explicitly: `jQuery.data( myData, jQuery.ajaxSettings.traditional )`.
+
 ### JQMIGRATE: jQuery.swap() is undocumented and deprecated
 
 **Cause**: The `jQuery.swap()` method temporarily exchanges a set of CSS properties. It was never documented as part of jQuery's public API and should not be used because it can cause performance problems due to forced layout. This method has been removed in jQuery 3.0.