Merge branch '2.3.x' into 2.4.x

Author: snicoll

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jdbc/DataSourceUnwrapper.java

@@ -50,6 +50,7 @@ private DataSourceUnwrapper() {
 	 * @param <I> the interface that the target type must implement
 	 * @param <T> the target type
 	 * @return an object that implements the target type or {@code null}
+	 * @since 2.3.8
 	 * @see Wrapper#unwrap(Class)
 	 */
 	public static <I, T extends I> T unwrap(DataSource dataSource, Class<I> unwrapInterface, Class<T> target) {