**Note: This is a working document for a future release, with running
updates for changes in the development branch. For changes in the
released versions of Varnish, see:** :ref:`whats-new-index`

.. _whatsnew_upgrading_CURRENT:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Upgrading to Varnish **$NEXT_RELEASE**
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

**XXX: how to upgrade from previous deployments to this
version. Limited to work that has to be done for an upgrade, new
features are listed in "Changes". Explicitly mention what does *not*
have to be changed, especially in VCL. May include, but is not limited
to:**

* Elements of VCL that have been removed or are deprecated, or whose
  semantics have changed.

* -p parameters that have been removed or are deprecated, or whose
  semantics have changed.

* Changes in the CLI.

* Changes in the output or interpretation of stats or the log, including
  changes affecting varnishncsa/-hist/-top.

* Changes that may be necessary in VTCs or in the use of varnishtest.

* Changes in public APIs that may require changes in VMODs or VAPI/VUT
  clients.

*eof*
