Add NEWS items for the two new pthreads implementations, i.e. the
condition variables algorithms and the pthread_rwlock algorithms.
+2017-02-05 Siddhesh Poyarekar <siddhesh@sourceware.org>
+
+ * NEWS: Add missing news items.
+
2017-02-04 Siddhesh Poyarekar <siddhesh@sourceware.org>
* elf/tst-env-setuid.c (do_execve): Return EXIT_UNSUPPORTED in
flag. The GNU C Library manual has details on usage and README.tunables has
instructions on adding new tunables to the library.
+* A new version of condition variables functions have been implemented in
+ the NPTL implementation of POSIX Threads to provide stronger ordering
+ guarantees.
+
+* A new version of pthread_rwlock functions have been implemented to use a more
+ scalable algorithm primarily through not using a critical section anymore to
+ make state changes.
+
Security related changes:
* On ARM EABI (32-bit), generating a backtrace for execution contexts which