Flat View. Lets you view the contents of all subfolders of a folder in one list.
Sticky Section. Now items in most-recently-used lists can be made permanent by moving them into the Sticky Section.
User Buttons. Now you can easily build toolbar-based open-with dropdowns. (Pro Edition Only)
Custom Copy with Verification. Now SHA-256 and SHA-512 hashing works on all systems (XP, Vista, and Win7).
Selection Stats. Displays statistical information on the currently selected items.
Move On Rename. Quickly move an item by entering a new path into the inline rename box. Non-existing paths are created on the fly.

New hotkeys "Move window and switch"
Automatic restoration of window distribution on resume from standby
Rule files (*.dxr) may contain multiple rules of the same name
Added some more programs to the default ignore list
Bugs

Fixed Explorer crashes when using certain title bar actions
Fixed detection of contradicting conditions in the Desktop Rules wizard
Fixed Ctrl-click action when using "One icon per desktop" tray icon mode
Desktop switching could enable window minimize animations
Fixed problems with move/copy "on next switch" feature
Fixed initial selection of a window copied to multiple desktops in the DexTab task switcher
Fixed opaque desktop icon background when icon drop shadows are disabled on Windows XP
Fixed problem with sticky Start menu shadow
Fixed copying of windows when switching desktops in quick succession
Fixed several rule import/export bugs

Fixed a bug that play time was incorrectly identified on some MP3/MOV files
Changed default color space to YUY2 on NVIDIA graphic cards
Fixed an issue that opaque box option did not work with blu-ray subtitle

Fixed error copying files containing alternate data streams (Windows)

Worked around buggy Asus Xonar drivers, volume control no longer requires toggling specific options in the driver control panel.

Browser
Further Ragnark fixes
Various Featherweight skin fixes
CORE-692 'bolder' and 'lighter' font-weights inherited erroneously: Acid3 fixed on Linux/FreeBSD
DSK-347488 Stop/Resume button and tooltip in the download manager always says Resume

Mail
Make the feed header size a bit smaller and customizable (Prefs > Fonts > Titles)
DSK-349973 Crash after upgrading from 11.52 to 11.60
DSK-349983 Crash fix
DSK-323971 Search in "All messages" only works with complete strings
DSK-349855 Can't open attachments set to open in Opera
DSK-349732 Changing 'show' type settings in Unread view doesn't work
DSK-348020 Reopening a Mail panel section takes two clicks
DSK-348246 Going to next unread should expand closed groups
DSK-350207 Mail list item context menu update
DSK-350180 "Pin Message" command should be added to the Mail Item Popup Menu
DSK-348537 Two clicks needed to select other mail view from panel while searching in All messages
DSK-350079 "Go To Thread" no longer enforces threaded in view
DSK-350005 Label icon in two-lined message list should not be clickable
DSK-347280 Searching in all messages doesn't follow the global sorting preference
DSK-350127 The To: header should always be on top and not aligned to the middle
DSK-350228 Double October in Mail grouping