Planning Workflow

The Planning Workflow takes place when before the development of a Feature starts. The Workflow starts always with an Open State and ends either with an Accepted or Deferred Status. It is exactly there, when one of these both States is reached, where the Development Worfklow starts:

You will find detailed about the workflow here: Release Policy - Planning

Development Workflow

The Devolopment Workflow takes place ...

You will find detailed about the workflow here: Release Policy - Development

Deprecation Workflow

The Deprecation Workflow 

You will find detailed about the workflow here: Release Policy - Deprecation