Migrations from the current dispatcher to the pipeline are beginning and will continue as more devices and new deployment methods gain support in the refactoring. Please subscribe to the Mailing lists for information and support. Migrations are expected to take most of 2016 to complete. Support for the current dispatcher will be removed at a point after the completion of the migrations. See the guide to migrating to the pipeline. See also docs for the deprecated JSON features.
All features of the current dispatcher and some features of the server UI which are bound to features of the current dispatcher are deprecated in favour of the pipeline. Support for these features will be removed in a future release.