~~~~~~~~~~~
Released May 2017
* Significant rewrite of the pre-1.0 codebase. Prior to this, the last release
was version 0.2.0 in June 2009.
* **Feature removal:** Configuring the Akismet client by placing a
specially-named file containing the API key is no longer supported. The only
supported configuration methods are explicit constructor arguments or
environment variables.
* **Feature removal:** Specifying a custom ``User-Agent`` header value is no
longer supported as a constructor argument. To set a custom ``User-Agent``
header, subclass the Akismet client and set the attribute
``user_agent_header`` to a dictionary containing the header(s) to send.
* **Method removal:** The ``setAPIKey()`` method of the Akismet client class is
removed.
* The ``requests`` library is now a dependency.