docs: update changelog.

docs/changelog.rst

@@ -53,9 +53,9 @@ Mitogen for Ansible
   tasks with the correct environment.
 
 * `#317 <https://github.com/dw/mitogen/issues/317>`_: respect the verbosity
-  setting when writing to to Ansible's ``log_path`` log file, if it is enabled.
-  Child log filtering was also incorrect, causing the master to needlessly wake
-  many times. This nets a 3.5% runtime improvement running against the local
+  setting when writing to Ansible's ``log_path``, if it is enabled. Child log
+  filtering was also incorrect, causing the master to needlessly wake many
+  times. This nets a 3.5% runtime improvement running against the local
   machine.
 
 
@@ -83,11 +83,20 @@ Core Library
   fail immediately on Windows Subsystem for Linux, due to use of `TCSAFLUSH`
   with :func:`termios.tcsetattr`. The flag is omitted if WSL is detected.
 
+* `#320 <https://github.com/dw/mitogen/issues/320>`_: The OS X poller
+  could spuriously wake up due to ignoring an error bit set on events returned
+  by the kernel, manifesting as a failure to read from an unrelated descriptor.
+
 * Debug logs containing command lines are printed with the minimal quoting and
   escaping required.
 
+* Standard IO forwarding accidentally configured the replacement ``stdout`` and
+  ``stderr`` write descriptors as non-blocking, causing subprocesses that
+  generate more output than kernel buffer space existed to throw errors. The
+  write ends are now configured as blocking.
+
 * When :func:`mitogen.core.enable_profiling` is active, :mod:`mitogen.service`
-  threads are run under the profiling hook just like other threads.
+  threads are profiled just like other threads.
 
 
 Thanks!
@@ -96,12 +105,14 @@ Thanks!
 Mitogen would not be possible without the support of users. A huge thanks for
 the bug reports and pull requests in this release contributed by
 `Alex Russu <https://github.com/alexrussu>`_,
+`Andy Freeland <https://github.com/rouge8>`_,
 `Ayaz Ahmed Khan <https://github.com/ayaz>`_,
 `Colin McCarthy <https://github.com/colin-mccarthy>`_,
 `Dan Quackenbush <https://github.com/danquack>`_,
 `Duane Zamrok <https://github.com/dewthefifth>`_,
 `Frances Albanese <https://github.com/falbanese>`_,
 `Gonzalo Servat <https://github.com/gservat>`_,
+`Guy Knights <https://github.com/knightsg>`_,
 `Josh Smift <https://github.com/jbscare>`_,
 `Mark Janssen <https://github.com/sigio>`_,
 `Mike Walker <https://github.com/napkindrawing>`_,