===========================

Nov 24, 2012
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Bug fixes
~~~~~~~~~

* Fixed a memory leak in `tornado.stack_context` that was especially likely
  with long-running ``@gen.engine`` functions.
* `tornado.auth.TwitterMixin` now works on Python 3.
* Fixed a bug in which `IOStream.read_until_close` with a streaming callback
  would sometimes pass the last chunk of data to the final callback instead
  of the streaming callback.