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+Version 3.3.7d7
+====
+**Enhancements**
+* Logs and statistics can now be directed to the system log (default), `stdout`, `stderr` or to a file or pipe of your choice using a new setting, `log_output_to` in the `diagnostics` section of the configuration file. This is very useful when the system log is disabled or diverted.
+* Audio data from the `pipe` back end, and metadata from the metadata pipe are now written using standard blocking `write` commands rather than a slightly complex non-blocking write function. Pipes are opend in non-blocking mode and chaned to blocking mode when successfully opened.
+* Separate threads for the metadata subsystems. Until now, all metadata was processed on a single thread. This included supplying the metadata pipe and the multicast stream and supplying metadata for the mqtt interface and for the `dbus` and `MPRIS` interfaces. Unfortunately, that meant that a problem with any one of these subsystems could propagate into the others. Now they all run on separate threads (almost -- the metadata pipe and multicast are still on one thread). If a subsystem blocks, it will only block itself and will not interfere with the other subsystems.
+
+**Bug Fixes and Enhancements**
+* Fixed a bug calculating the instantaneous synchronisation error. This bug could occasionally cause Shairport Sync to lose synchronisation and maybe even to mute for a few seconds before regaining it. It was caused by not doing modulo arithmetic properly, and it's been there for a while.
+* Cleaned up and improve the code to synchronise the first frame of audio. This should result in more accurate and reliable initial synchronisation, usually to under a millisecond, and often to within 20 or 30 microseconds in normal usage. Sync should improve even when the silent lead-in time is as short as 0.3 seconds or when the `audio_backend_latency_offset_in_seconds` is as great as -1.7 seconds.
+* Removed a bug which would affect initial synchronisation if a `FLUSH` command was received from the player at an inopportune time.
+* Cleaned up some confused uses of modulo arithmetic.
+* Cleaned up allocation of memory for gathering running statistics – use the heap instead of the stack.
+* Cleaned up the display of statistics for backends that do not implement active synchronisation, e.g. the `pipe` and `STDOUT` back ends.
+
 Version 3.3.7d6
 ====
 **Bug Fixes and Enhancements**