Is it possible to push a process builder flow from Sandbox to Production using change sets? According to Winter15 documentation, process builder is not supported by change sets. If it is still the case, how can I migrate my flows? Thanks.
If you are on Summer'15 Sandbox -
Process Builder processes can be successfully deployed from one environment to another using Change Sets. You need to select "Flow Definition" in the Component drop down when adding components.
Also: When you deploy the change set, the process needs to be "activated" if its not active post deployment.