[[toc]]
+ Backward Compatibility Breaking Horde Issues (aka Horde 4.0 TODO)
* Fix cloning behavior (See Bug 1410).
* Remove IMAP_Tree::.
* Move IMP_IMAPClient:: to Horde.
* Merge IMP_Thread:: to IMAP_Thread::.
* Refactor IMP_IMAPClient:: and IMAP_ACL::.
* Encrypt deprecations in Horde_Crypt_pgp::.
* Use one place for clear text sendmail error messages.
* rename files in imp/templates/prefs to more sensible defaults (e.g. draftsfolderselect.inc, not folderselect.inc)
* Remove {{$foo = &new Foo();}} calls and replace with {{$foo = new Foo();}} - The former is deprecated as of PHP 5 and causes errors when strict code checking is on.
* Similarly, don't pass objects by reference ( function foo(&$bar) )
* Move share edit form into framework package to make it extendable.
* Convert all configuration files to XML format.format (or to a unified conf.yaml, or an annotated conf.php - either way, something the config interface can universally manage and generate)
* Remove IMP_IMAP_Search:: and Ingo_IMAP_Search::.
* Remove imap_reopen() call in IMAP_Search::.
* Checkboxes in Horde_Form that are marked as required should be required to be checked.
* Remove IMP_SpellChecker::.
* Add a single function for changing the language (handle the bindTextDomain() call also)
* Remove hack to fix app-specific Notification_Listeners that output <p> instead of <li> (in Notification/Listener/status.php).
* Prefix all classes with Horde_ that don't have that prefix yet (also see http://www.php.net/manual/en/userlandnaming.php).
* Filter all input through filter extension or library.
* Use phone form fields, i.e. in Turba.
* Use exceptions instead of PEAR_Errors.
* Clean up Horde::loadConfiguration() mess.
* Clean up VFS_sql to use '/' as the root of the VFS instead of ''. This will make it behave like the other VFS backends without code to do the conversion.
* Set the cache expiration time when the entry is set
* Don't let Horde_Crypt_pgp methods check for secure connection.
* Remove pref_api BC files
* Fix Horde_Cache_file:: to accept mixed $data, instead of just a string.
* Use file_put_contents() exclusively if we require PHP 5+.
* http://lists.horde.org/archives/dev/Week-of-Mon-20070305/021221.html
* Refactor Horde_iCalendar
* Users shouldn't have to deal with property names, formatting, escaping, versions, etc.
* Make getType() return values consistent.
* Consistent return types (array vs. timestamp) in _parse*() methods.
* Move date/time parsing methods to Horde_Date::.
++ MIME issues
* Remove deprecated code in MIME_Headers::
* Remove BC mime_drivers code in MIME_Viewer::, IMP_Contents::, MIMP_Contents::.
* Make MIME::_rfc822encode() a public function.
* Make MIME_Viewers responsible for retrieving part contents (so they can determine whether or not contents should be retrieved at all and/or cached).
* Don't link MIME icons to Viewers - show icons no matter what viewers are installed/enabled/etc.
++ VFS
* Use/learn from http://www.php.net/~helly/php/ext/spl/
* Specifically !DirectoryIterator, !SPLFileInfo, !SplFileObject, ...
++ !JavaScript
* Remove last traces of enter_key_trap.js
* Remove code like hideable.js that is encapsulated by Prototype (or whatever js toolkit 4.0 uses standard)
* Global Prototype/Scriptaculous libraries.
* Remove app-specific 'stripe.js' files.
* Remove app-specific 'open_calendar.js' files and extra code in Horde's open_calendar.js.
* Replace horde's popup.js with IMP's version.
* Basically consolidate _all_ js present in multiple apps
* Put core javascript into a package so it can be versioned/upgraded?
* Remove print.js in favor of just window.print
++ Templates
* Remove IMP_Template, Ingo_Template, and Gollem_Template.
* Replace all templates with a Horde_View class, with a default of simple PHP templates
* Introduce templates for ALL HTML generated in libraries
* Figure out how to handle templates for framework packages
* Default HTML Horde_View should escape all output (htmlspecialchars)
++ Bugs
* Bug [http://bugs.horde.org/ticket/?id=4221 4221].
* Bug [http://bugs.horde.org/ticket/?id=3271 3271] - more specifically, how to deal with addition of configspecial tags. Of course, this depends on what changes are made to Horde's configuration design.
* Un-stall all tickets with Horde 4/IMP 5/etc. milestones
++ To discuss
* Template system (Horde_Template? something else?)
* use __autoload() instead of require_once
* Using a global __autoload() function is not good practice for a framework because you can only have one __autoload function - I'm not in favor of it (ChuckHagenbuch).
* Using it in Horde apps as opposed to the framework is an option, but still leaves us all of the framework requires.
* http://php.net/spl-autoload-register is a potential solution. With PHP 5.1.x (or 5.2, or ...) as a minimum version requiring SPL should be okay.
* Performance a consideration? http://pooteeweet.org/blog/538/
* RemoveGlobals
* HordeSpaces
* Require UTF-8 support
* Remove confusing mess of hooks and other ways of muddling logins (especially with IMP), and replace them _all_ with the preauthenticate and postauthenticate hooks + appropriate examples for things like vhosting.
* Clean up tobackend/frombackend hooks - either remove them, or name them better, or document when and where they need to be called.
* Get rid of 'realms' (replace with HordeSpaces where necessary).
* Remove imp['uniquser'] ?
* Horde4Config
* Per-variable session locks? http://thwartedefforts.org/2006/11/11/race-conditions-with-ajax-and-php-sessions/
* Use 1 login screen for all apps? (i.e. Horde_Login:: library)