The reason for creating a new buildbot is that the our current buildbot is using a very old buildbot version that is hard to maintain (old not supported code). It has also serious limitations, for example it can't use the git protocol for protected branches.

The new buildbot configurations will largely use native Dockers. This will make the new buildbot about 2.5 faster and use less resources for doing builds.
In addition it will support connectivity to GitHub directly integrated through oAuth.

New buildbot can be found at: https://buildbot.mariadb.org/#/