User Interface
Updated standard skin dialogs (brighter, lighter look with more air)
Fixed several issues with lacking space for translations
Fixed icon height consistency
Added some icons to the mail compose menu and changed some of the icons in the tools menu to colored versions that already exist
Extensive changes due to lightening the pagebar: Icons can now work on all toolbars, stronger panel color for better differentiation
Corrections to dialog tabs
Adding 16px icons for the main Opera menu (Bookmarks, help, tools, windows)
Changing Speed Dial favicon in standard skin to be more like OS X native skin
Small tweak to the background of standard skin close buttons
Fixed Bug DSK-232147 (Opera replaces commas with dots when I paste URL to address bar): Stop conversion after first '/' or '?' whatever comes first
Fixed Bug DSK-251903 ("Go" button not taking new search field into account)
Fixed Bug DSK-253896 (Panel moves when clicking "Unite Services" when "images with text below" is set)
Fixed Bug DSK-255662 (The Go button needs a non-text-looking icon when "images only" is set)
Fixed Bug DSK-257212 (Button size inconsistencies)
Fixed Bug DSK-257851 (No info icon before "what is Turbo in Turbo popup menu): Added info icon on the "about turbo" element in the turbo pop-up menu.
Fixed Bug DSK-257591 (Speed Dial merging leaves duplicates)

Core
Several crash fixes
Fixed Bug CORE-14549 (Positioned empty span descendant of a shrink-to-fit breaks layout via horizontal scrollbar)
Fixed Bug CORE-15761 (Regex [^x]
fails to match certain characters)
Fixed Bug CORE-15893 (Recursive Regular expression causes stack exhaustion)
Fixed Bug CORE-18311 (Regex \b is incorrectly matching the point between a letter and underscore)
Fixed Bug CORE-19424 (Regex pattern (a|ab){2} fails to correctly match (can't update IP address at DynDns))
Fixed Bug CORE-19701 (input type=url can no longer match URLs correctly (regexp related))
Fixed Bug CORE-19911 (Regexp of the form /^(b+?|a){1,2}c$/ fails to find match)
Fixed Bug DSK-231216 (Opera crashes, likely after a page on a background tab refreshed itself)
Fixed Bug DSK-247269 (Video at apple.com does not load and page becomes unusable)
Fixed Bug DSK-255591 (Cannot download new .torrent file with turbo enabled.)
Fixed Bug DSK-257538 (Decoding error when writing an html mail with a non-ASCII character)

Mail/Chat
Center the new account wizard for mail
Fixed Bug DSK-203865 (The title in IRC channels always equals the title shown in the app window title bar)
Fixed Bug DSK-256468 (text does not fit completely in a few dialogs when switching to Romanian language)
Fixed Bug DSK-256580 (Can't paste into inline find in mail view)

Opera Unite
Added new dialog for advanced options, adding setting for upload rate
Added new preference for UPnP Service Discovery: opera:config#WebServer|UPnPServiceDiscoveryEnabled
Delete warning no longer shown when dragging a running service, unless dragging to trash
Added warning dialog buttons saying "Delete"/"Cancel" when a user drags a service to the trash
Fixed Bug CORE-21715 (Crash when enabling Unite)
Fixed Bug DSK-256201 (UI problems when running multiple instances of the same Unite Service)
Partial Fix of Bug DSK-256802 (Implement option to toggle visibility on ASD)
Fixed Bug DSK-257279 (When renaming invalid usernames containing a '+', the '+' should be escaped as '%2B')
Fixed Bug DSK-257458 (Wrong message when dragging opened widget): Service deletion warning shown when dragging widgets
Fixed Bug DSK-257609 (Huge properties dialog for unite services)
Fixed Bug DSK-257675 (customized panel toolbar doesn't have the Unite panel after upgrading to a Unite build): upgrading hotlist panel selector, adding Unite panel if necessary
Fixed Bug DSK-257770 (service download dialog has an 'Ok' button that closes the download dialog): service download dialog shouldn't have an 'Ok' button
Fixed Bug DSK-257799 ("Empty Trash" action should be disabled when trash is empty)
Fixed Bug DSK-257813 ("Open" in the Unite panel should be disabled when no service is focused)
Fixed Bug DSK-257842 (Make it imposible to install a new home service)
Fixed Bug DSK-257852 (Unite: Allow to set port via UI)

Windows
Additional fix for Bug DSK-249688 (Systemwide settings are not read)
Fixed Bug DSK-250578 (Garbled display of tab thumbnail when page uses bitmap fonts)
Fixed Bug DSK-253008 (Wrong name listed for Azureus in BitTorrent Client Selection dialog)
Fixed Bug DSK-257622 (Upgrading single user install from Opera 9.27 to 10.00 1603, mail and profile is not picked up)

Highlights
New design for info panel, error pages, internal pages (e.g., opera:about), and fraud warning page
Skin fixes, including updated icons
Stability fixes
Unite fixes
Admin password is no longer needed when reporting crashes on Mac
Improved plugin detection on 64-bit Liux

Known Issues
opera:historysearch not yet updated to new design
The bottom (white) part of the new error pages might not load every time
The skin is still work in progress
Some Unix builds may be missing, but most of them will be continuously uploaded