+ - Added check_plugin_version() function.
+ - If mailbox name starts with slash or contains ../, error message is
+ generated. Safety check for insecure default UW IMAP setup (#1557078).
+ - Ignore message copy errors when messages are deleted. Allows to delete
+ messages when quota is exceeded. (#614887) (#646386) (#1446026)
+ - Fixed unintended literal fetching (#1562271).
+ - Checked if configuration file is readable in configuration utility
+ (#1568355).
+ - Added PHP pspell extension support to squirrelspell plugin.
+ - Add CEST and MEST (non-standard) timezone codes for +0200.
+ - Add support for SpamAssassin's X-Spam-Status header (#1589520).
+ - Added plugin on/off switch, which completely disables all plugins
+ (optionally for one named user, otherwise for all users).
+ - Security: close cross site scripting vulnerability in draft, compose
+ and mailto functionality [CVE-2006-6142].
+ - Security: work around an issue in Internet Explorer that would guess
+ the mime type of a file based on contents, not Content-Type header.
+ - Security: Multiple IE cross site scripting issues related to the
+ generous parsing of the words 'expression' and 'url' by IE.
+ - Security: Removing @import when sanitizing html mail.
+ - Redesigned plugin hook system. do_hook_function() has been removed
+ and do_hook() now emulates do_hook_function()'s return value and
+ also has its plugin arguments passed by value, etc.