Suppress IE's default behavior of opening links in a new tab on ctrl-click by wrapping the clickable content in <span> tag
Improvement in handling invalid email address strings
Fix some PDO::MYSQL_* constants (wrongly described in PHP manual before 5.3.21)
Fix filter creation from an email when preview frame is disabled (#1489647)
Fix opening compose screen in new window after saving as draft (#1489643)
Updated Changelog
Fix default mailbox sort order
Fix dbmail driver (hints from https://github.com/roundcube/roundcubemail/pull/169)
Implement ArrayAccess interface for conveniently accessing rcube_result_set as array
Support structured data for autocompletion results; map 'type' attribute to CSS class for autocomplete list items
Revert "Implement ArrayAccess interface for conveniently accessing rcube_result_set as array"

This reverts commit a7d68eaf1a0df1d954b4d6623ff0419a93739cd2.
Revert "Support structured data for autocompletion results; map 'type' attribute to CSS class for autocomplete list items"

This reverts commit e3773d46cb4f06aaab2747db98765edd6d871524.
Fix input-button disabled state; add support for jquery UI buttons of type 'uibutton'
Re-arrange buttons in import dialog to match the rest of the appplication