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# What’s new in gevent 1.4

- Changes for 1.4
  - 1.4.0 (2019-01-04)

Detailed information on what has changed is available in the Changes for 1.4. This document summarizes the most important changes since gevent 1.3.

gevent 1.4 is a small maintenance release featuring bug fixes and a small number of API improvements.

## Platform Support

gevent 1.4 supports the platforms that gevent 1.3 supported, with the exception that for users of Python 3.4, Python 3.4.3 is the minimum supported version.

## Test Changes

gevent’s own test suite is now packaged as part of the gevent install, and the `greentest/testrunner.py` script is now gone from a source distribution or checkout. Instead, tests can be run with `python -m gevent.tests`. Many tests can be run given an installed version of gevent, although the test dependencies, including cffi, must be installed for all of them to run.