+2021-02-22 lttng-tools 2.12.3 (National Margarita Day)
+ * Fix: ust-consumer: metadata thread not woken-up after version change
+ * Clean-up: ust-consumer: simplify metadata cache unlock on error path
+ * Fix: sessiond: timer: unitiliazed sigevent fields
+ * Fix: sessiond: ust-registry: dereference of NULL pointer on allocation failure
+ * Fix: ust-consumer: metadata cache lock not taken when sampling max offset
+ * Fix: use MT-safe strtok_r in multithreaded context
+ * Fix: liblttng-ctl: unreported truncations when copying strings
+ * Fix: configure: support Autoconf 2.70
+ * Fix: sessiond: metadata not created on app unregistration during start
+ * Cleanup: use `modprobe --remove` rather than `rmmod`
+ * Tests: Fix: 99% fill ratio for high buffer usage is too high for larger events
+ * Fix: common: poll: compat_poll_wait never finishes
+ * Build fix: implicit declaration of function 'PERROR' on Solaris
+ * Fix: PERROR spam when `tracing` group does not exist
+ * Fix: memcpy used on potentially overlapping regions
+
+2020-08-03 lttng-tools 2.12.2 (National Watermelon Day)
+ * Tests: rework tracefile_count test to meet the tracefile count limit
+ * Fix: extraneous empty/inactive flush on rotation out of a trace chunk
+ * Fix: relayd: double unlock on viewer stream creation error
+ * Fix: relayd: live connection fails to open file during clear
+ * Fix: relayd: wrong stream type used in DBG statement
+ * Fix: lttng: leak of userspace probe path on listing
+ * Fix: uprobe: missing error code on allocation failure
+ * Fix: sessiond: don't negate error code on list error
+ * Fix: send/received actual size is overwritten by 'expected' size
+ * Fix: partial recv lead to client disconnect
+ * tests: return the proper TAP exit code
+ * Tests: live/test_{lttng_,}kernel: use lttng_test_filter_event instead of sched_switch
+ * Fix: consumer: Move sanity check within `consumer_subbuffer` functions
+ * Fix: sessiond: wrong variable checked for error code
+ * Fix: consumerd: double unlock on rotate channel error path
+ * Fix: consumerd: packet sent before channel rotation
+ * Fix: relayd: wrong specifier used in DBG format string
+ * Tests: add a "new metadata after clear" test
+ * Fix: relayd: send_viewer_streams sends stack data in padding
+ * Fix: stream intersection fails on snapshot of cleared session
+ * Fix: relayd: viewer metadata is not rotated after a session clear
+ * Fix: post-clear trace chunk has a late beginning packet
+ * Fix: kconsumer: missing wait for metadata thread in do_sync_metadata
+ * Fix: tests: interrupting get_next_notification causes test to fail
+ * Fix: consumer.c: wrong order of parameter in `DBG()` statement
+ * Fix: consumer: dangling chunk on buffer allocation failure
+ * Fix: consumerd: uninitialized written_bytes on no-data sleep
+ * Build fix: consumerd misnamed label
+ * consumerd: on_sleep not called on stream when no data is available
+ * Fix: invalid discarded events on start/stop without event production
+ * tests: truncate metadata file for regenerate metadata test
+ * Fix: consumerd: user space metadata not regenerated
+ * tests: gen-ust-events-ns/tp.h: Fix build with musl libc
+ * Fix: tests: output_dir contains the consumerd pipe
+ * Fix: unix: don't PERROR on EAGAIN for non-blocking sockets
+ * Fix: sessiond: sessiond and agent deadlock on destroy
+ * Fix: incorrect specifier %lu used with size_t argument
+ * Fix: consumerd: live client receives incomplete metadata
+ * consumerd: refactor: split read_subbuf into sub-operations
+ * consumerd: move rotation logic to domain-agnostic read path
+ * sessiond: enforce mmap output type for kernel metadata channel
+ * consumerd: tag metadata channel as being part of a live session
+ * consumerd: pass channel instance to stream creation function
+ * consumerd: cleanup: use buffer view interface for mmap read subbuf
+ * consumerd: move address computation from on_read_subbuffer_mmap
+ * consumerd: refactor: combine duplicated check_*_functions
+ * kerner-ctl: add RING_RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK
+ * Add lttng_dynamic_buffer_append_view util
+ * Fix: lttng: Destroying session message repeated during destruction
+ * Fix: liblttng-ctl: leak of tracker handle in lttng_[un]track_pid
+ * Fix: common: fs_handle_seek returns negative value on success
+ * Fix: common: abort on rotation after time manipulation
+ * Tests: test_exclusion: exclusion after tracing active
+ * Tests: `gen-ust-nevents`: add syncpoints
+ * Tests: accept built-in kernel modules
+
+2020-05-12 lttng-tools 2.12.1 (International Nurses' Day)
+ * API: missing includes in lttng.h
+ * API: missing clear and clear-handle includes in lttng.h
+ * API: sort lttng.h includes
+ * Fix: API: missing end brace for C++ linkage specification.
+ * Fix: tests: `-Wstringop-overflow` warning
+ * Fix: load: incomplete error handling for load_session_from_file
+