Post-v2.4.0
---------------------
+ - Dropped support for Python older than version 2.7. As a consequence,
+ using Open vSwitch 2.5 or later on XenServer 6.5 or earlier (which
+ have Python 2.4) requires first installing Python 2.7.
- OpenFlow:
* Group chaining (where one OpenFlow group triggers another) is
now supported.