Another Windows snapshot is ready for testing. There will probably not be anything for Unix and Mac this weekend. 
Note that we would still like to know if you are able to find any problems when upgrading from previous versions. 
Known Issues
Crashes a lot under Windows 7 (can be worked around by disabling opera:config#UserPrefs|UseWindows7TaskbarThumbnails) 
GDI leak when opening pages 
HTML5 <video> is still broken
WARNING: This is a development snapshot: it contains the latest changes, but may also have severe known issues, including crashes and data loss situations. In fact, it may not work at all. 
Downloads 
[ur=http://snapshot.opera.com/windows/Opera_1050_3263_in.exe]Windows MSI[/url] / 
Windows Classic 
Changelog 
Desktop
DSK-219288 Can't "Paste and go" in a background tab (added "Paste and go background" action) 
DSK-278748 font-style regressions 
DSK-279904 Memguarded Opera crash on maximizing tab pages 
DSK-244632 When pressing Ctrl+T, the new tab opens in background. 
DSK-279844 O-menu button can be removed with no way of getting it back 
DSK-281888 Text in form dropdowns disappear (or goes white) on hover 
DSK-279381 "Private" tab settings not inherited in new tab when "reuse current tab" is disabled 
DSK-279538 Middle-clicking folders in the bookmarks panel is not working 
DSK-278711 Deleting and readding bookmark shows Bookmark Properties dialog 
DSK-277996 "Go to Web Address" not working 
DSK-278189 Zoom menu inactive on opera:* pages 
DSK-168869 Certain characters truncate URLs in messages, breaking links 
DSK-278062 File icons in the download dialog are stretched 
DSK-266465 Shockwave painted in wrong place in Evenes 
DSK-280443 Clicking the Go button in the search box doesn't always search 
DSK-279994 Increasing the maximum number of connections from 20 to 64 
DSK-280722 Zoom menu does not reflect the actual zoom level
Core
CORE-24740 Crash with XSLT 
CORE-27172 FTP Browser shows windows style path seperators "\", breaks ftp browsing 
CORE-25799 Page content not resized to fit window on maximizing 
CORE-25985 Mountpoint URLs with a numeric name gets converted to IPv4 address before resolving 
CORE-24369 Client sends all its data after dirty sync 
CORE-27159 Unknown option 2005 when right-clicking on images 
CORE-27080 Starting Dragonfly causes 10.50 to crash
CORE-25980 URL fragment dropped from links in MHTML files