diff --git a/configuration-metadata/spring-boot-configuration-metadata-changelog-generator/src/main/java/org/springframework/boot/configurationmetadata/changelog/Difference.java b/configuration-metadata/spring-boot-configuration-metadata-changelog-generator/src/main/java/org/springframework/boot/configurationmetadata/changelog/Difference.java
index 35a1867c89b..c150359006d 100644
--- a/configuration-metadata/spring-boot-configuration-metadata-changelog-generator/src/main/java/org/springframework/boot/configurationmetadata/changelog/Difference.java
+++ b/configuration-metadata/spring-boot-configuration-metadata-changelog-generator/src/main/java/org/springframework/boot/configurationmetadata/changelog/Difference.java
@@ -51,7 +51,7 @@ record Difference(DifferenceType type, ConfigurationMetadataProperty oldProperty
 				&& newProperty.isDeprecated() && newProperty.getDeprecation().getLevel() == Level.ERROR) {
 			return new Difference(DifferenceType.DELETED, oldProperty, newProperty);
 		}
-		if (!Objects.equals(oldProperty.getDefaultValue(), newProperty.getDefaultValue())) {
+		if (!Objects.deepEquals(oldProperty.getDefaultValue(), newProperty.getDefaultValue())) {
 			return new Difference(DifferenceType.DEFAULT_CHANGED, oldProperty, newProperty);
 		}
 		return null;
diff --git a/configuration-metadata/spring-boot-configuration-metadata-changelog-generator/src/test/java/org/springframework/boot/configurationmetadata/changelog/DifferenceTests.java b/configuration-metadata/spring-boot-configuration-metadata-changelog-generator/src/test/java/org/springframework/boot/configurationmetadata/changelog/DifferenceTests.java
new file mode 100644
index 00000000000..090844a695b
--- /dev/null
+++ b/configuration-metadata/spring-boot-configuration-metadata-changelog-generator/src/test/java/org/springframework/boot/configurationmetadata/changelog/DifferenceTests.java
@@ -0,0 +1,98 @@
+/*
+ * Copyright 2012-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.configurationmetadata.changelog;
+
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+
+import org.springframework.boot.configurationmetadata.ConfigurationMetadataProperty;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link Difference}.
+ *
+ * @author Stephane Nicoll
+ */
+class DifferenceTests {
+
+	@Nested
+	class DefaultChangedTests {
+
+		@Test
+		void sameValueComputesNoDifference() {
+			Difference difference = Difference.compute(createProperty("test.id", "test"),
+					createProperty("test.id", "test"));
+			assertThat(difference).isNull();
+		}
+
+		@Test
+		void bothNullComputesNoDifference() {
+			Difference difference = Difference.compute(createProperty("test.id", null),
+					createProperty("test.id", null));
+			assertThat(difference).isNull();
+		}
+
+		@Test
+		void nullThenNotNullDefaultChanged() {
+			Difference difference = Difference.compute(createProperty("test.id", null),
+					createProperty("test.id", "test"));
+			assertThat(difference).isNotNull();
+			assertThat(difference.type()).isEqualTo(DifferenceType.DEFAULT_CHANGED);
+		}
+
+		@Test
+		void notNullThenNullDefaultChanged() {
+			Difference difference = Difference.compute(createProperty("test.id", "test"),
+					createProperty("test.id", null));
+			assertThat(difference).isNotNull();
+			assertThat(difference.type()).isEqualTo(DifferenceType.DEFAULT_CHANGED);
+		}
+
+		@Test
+		void arrayEqualsComputesNoDifference() {
+			Difference difference = Difference.compute(createProperty("test.id", new Object[] { "one", "two" }),
+					createProperty("test.id", new Object[] { "one", "two" }));
+			assertThat(difference).isNull();
+		}
+
+		@Test
+		void arrayOrderChangedComputesDefaultChanged() {
+			Difference difference = Difference.compute(createProperty("test.id", new Object[] { "one", "two" }),
+					createProperty("test.id", new Object[] { "two", "one" }));
+			assertThat(difference).isNotNull();
+			assertThat(difference.type()).isEqualTo(DifferenceType.DEFAULT_CHANGED);
+		}
+
+		@Test
+		void arrayAdditionalValueComputesDefaultChanged() {
+			Difference difference = Difference.compute(createProperty("test.id", new Object[] { "one", "two" }),
+					createProperty("test.id", new Object[] { "one", "two", "three" }));
+			assertThat(difference).isNotNull();
+			assertThat(difference.type()).isEqualTo(DifferenceType.DEFAULT_CHANGED);
+		}
+
+	}
+
+	private static ConfigurationMetadataProperty createProperty(String id, Object defaultValue) {
+		ConfigurationMetadataProperty property = new ConfigurationMetadataProperty();
+		property.setId(id);
+		property.setDefaultValue(defaultValue);
+		return property;
+	}
+
+}