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===============
Upgrading IMP
===============
:Last update: $Date: 2006/01/06 10:29:45 $
:Revision: $Revision: 1.7.8.8 $
:Contact: imp@lists.horde.org
Upgrading IMP From 4.0.x To 4.1.x
=================================
This is a non-exhaustive, quick explanation of what has changed between an IMP
4.0.x installation to IMP 4.1.x.
Automatic Namespace Detection
-----------------------------
The ``namespace``, ``hierarchies``, ``folders``, ``delimiter``, and
``dotfiles`` parameters were removed from ``config/servers.php``. Namespaces
are now automatically configured pursuant to RFC 2342.
If using the UW IMAP daemon, you may notice a bunch of additional namespaces
that were not displayed before as well as the ability of the user to
view all files that live in their home directory via the folders screen.
Information on how to correct your IMAP server configuration can be found at
http://wiki.horde.org/ImpUWIMAPNamespaces
User-Defined Headers
--------------------
The ``config/headers.txt`` file has been removed and replaced by
``config/headers.php``. Any user-defined headers should be migrated to this
file. The new file has the advantage of allowing any valid PHP expression
to be executed at run-time when generating the headers. See the top of
the ``headers.php`` file for the new format required.
Removed Preferences
-------------------
The following preferences are no longer used and may be safely removed from
your ``config/prefs.php`` file and your preferences backend::
'disposition_request_delivery'
'disposition_send_mdn'
'wrap_width'
Upgrading IMP From 3.x To 4.0.x
===============================
This is a non-exhaustive, quick explanation of what has changed between an IMP
3.x installation to IMP 4.0.x.
Filters
-------
Filtering code has been removed from IMP. To have the same features as the
old code, you should install the Ingo_ module. See the INSTALL_ file for more
information.
.. _Ingo: http://www.horde.org/ingo/
.. _INSTALL: ?f=INSTALL.html
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