+2016-04-26 Userspace RCU 0.8.9
+ * Fix: handle reference count overflow
+ * Fix: compat_futex should work-around futex signal-restart kernel bug
+ * Fix: urcu-signal: smp_mb_master() needs registry lock
+ * Fix: rculfhash only needs to include urcu-pointers.h
+ * Fix: format string signedness
+ * Use gcc atomics on aarch64/powerpc64le
+ * Fix: compat_futex: uninitialized ret variable
+ * Fix: compat_futex_noasync: don't override return value
+ * Fix: stable-0.8 branch does not have syscall-compat.h
+ * Fix: dynamic fallback to compat futex on sys_futex ENOSYS
+
+2015-09-09 Userspace RCU 0.8.8
+ * Disable sys_membarrier
+ * Fix: volatile in assert()
+ * uatomic: Specify complete types for atomic function calls
+ * Fix: handle sys_futex() FUTEX_WAIT interrupted by signal
+ * Fix: compat_futex.c: *uaddr should be read as volatile
+ * Fix: make benchmark test run in oot build
+ * Fix: call_rcu_thread() affinity failure
+ * urcu: fix deprecation warning with new glibc
+