src/share/classes/java/lang/System.java

*** 630,639 ****
--- 630,640 ----
       * returns the same value - the initial value of the {@linkplain
       * #getProperty(String) system property} {@code line.separator}.
       *
       * <p>On UNIX systems, it returns {@code "\n"}; on Microsoft
       * Windows systems it returns {@code "\r\n"}.
+      * @since 1.7
       */
      public static String lineSeparator() {
          return lineSeparator;
      }