+** More reliable directory traversal when creating archives
+
+Tar now checks for inconsistencies caused when a file system is
+modified while tar is creating an archive. The new checks are
+implemented via the openat, fstatat, and readlinkat calls standardized
+by POSIX.1-2008. On an older system that lacks these calls, tar
+emulates them at some cost in efficiency and reliability.
+
+** Spurious error diagnostics on broken pipe.
+
+When receiving SIGPIPE, tar would exit with error status and
+"write error" diagnostics. In particular, this occurred if
+invoked as in the example below:
+
+ tar tf archive.tar | head -n 1
+