|[ANN] RAP 2.0, API changes [message #898611]
||Thu, 26 July 2012 17:19
|| Ralf Sternberg
Registered: July 2009
Hi RAP devs,|
I'd like to give you an update on our plans for the next RAP release
and make you aware of breaking API changes in this upcoming version.
As you all know, we've introduced a new open protocol  for the
client-server communication in RAP 1.5. This protocol is currently
used for responses (server-to-client) only. For the next release, we
plan to extend the usage of the new protocol to the requests from
client to server. When the protocol is used in both directions, we
will also provide some new API for custom components based on the
We plan to publish a new major version, RAP 2.0, in February 2013 to
mark the completion of this restructuring. The plan for RAP 2.0 will
be published on our website soon.
With the update of the major version, we will also clean up some old
API and discontinue the support of some obsolete features. This will
lead to incompatible changes and require adjustments to all existing
applications to work with RAP 2.0. After more than five years and
seven releases, some cleanup seems to be necessary to allow us to
continue progressing in a reasonable pace.
The clean-up mostly affects API that is related to the old
application code. As we don't plan to take any substantial
functionality away, there will be replacements for most of the removed
old protocol APIs, the migration will be smooth. And also for existing
custom widgets, there is a straight-forward migration path.
We've started a migration guide  to assist adjusting RAP 1.x
applications for RAP 2.0. This guide will be updated during the
development of RAP 2.0.
If you have any questions or concerns, let us know.
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