+2018-04-30 lttng-tools 2.9.9 (CERN announces WWW protocols will be free)
+ * Add DBG statement for TCP keep-alive options
+ * Fix: failure to launch agent thread is not reported
+ * Fix: agent may not be ready on launch
+ * Fix: lttng logs nanoseconds
+ * Fix: stream_per_chan_id_ht should allow duplicates
+ * Fix: relayd send_command() util not logging on failure
+ * Fix: kernel snapshot handling of EAGAIN
+ * Fix validate_trace_empty test check
+ * Fix: hold consumer socket lock for consumer_send_msg
+ * Fix: use off_t type for lseek function return value to avoid overflow
+
+2018-03-26 lttng-tools 2.9.8 (Purple Day)
+ * Fix: set errno with value from SO_ERROR on error.
+ * Fix: missing value handling for lttng_event_context_type
+ * Fix: Use SOL_SOCKET level for SO_KEEPALIVE on all platform
+ * Fix: error out on leftover arguments
+ * Fix: reply to version check even on protocol mismatch
+ * Fix: error handling on relay version check
+ * Document add-context limitation for started session
+ * Fix: add-context cannot be performed after a session has been started
+ * Fix: duplicated kernel consumer socket locking
+ * Fix: remove unused event types in MI XML schema
+ * Tests: cleanly exit from test apps on reception of SIGTERM
+ * Document consumer socket locking assumptions
+ * Fix: consumer socket lock not held during snapshot record
+ * Fix: set_relayd_for_snapshot does not acquire the consumer socket lock
+ * Document the locking assumptions of consumerd-relayd socket passing
+ * Assert that the consumer lock is held while sending FDs to consumerd
+ * Assert that the consumer socket lock is taken during communication
+ * Tests: refuse to run test suite if lttng processes are present
+ * Fix: metadata channel leak when using the snapshot tracing mode
+
2018-02-05 lttng-tools 2.9.7
* Fix: do not flag consumer as disabled on relayd comm failure
* Fix: cleanup inactive FDs in the consumer polling thread