Buildbot 2.9.0

[Povilas Kanapickas]

Buildbot 2.9.0 has been released!

See more details in the notes for this release:
http://docs.buildbot.net/2.9.0/relnotes

This release fully deprecates old-style steps and provides a migration
path to new style steps. Support for old-style steps will be removed in
Buildbot v3.0 which will most likely be released in January.

There will still likely be one or more bugfix releases in Buildbot 2.x
series.

Regards,
Povilas