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### Navigation - [index](# "General Index") - [modules](# "Python Module Index") | - [next](# "What鈥檚 new in Tornado 3.2.1") | - [previous](# "What鈥檚 new in Tornado 4.0") | - [Tornado 4.4.dev1 documentation](#) » - [Release notes](#) » # What's new in Tornado 3.2.2 ### June 3, 2014 ### Security fixes - The XSRF token is now encoded with a random mask on each request.This makes it safe to include in compressed pages without beingvulnerable to the [BREACH attack](http://breachattack.com) [http://breachattack.com].This applies to most applications that use both the `xsrf_cookies`and `gzip` options (or have gzip applied by a proxy). ### Backwards-compatibility notes - If Tornado 3.2.2 is run at the same time as older versions on the samedomain, there is some potential for issues with the differing cookieversions. The [`Application`](# "tornado.web.Application") setting `xsrf_cookie_version=1` canbe used for a transitional period to generate the older cookie formaton newer servers. ### Other changes - `tornado.platform.asyncio` is now compatible with `trollius` version 0.3. © Copyright 2009-2016, The Tornado Authors. Created using [Sphinx](http://sphinx-doc.org/) 1.3.5.