Level 61
Opera 11.62 for Windows changelog
Release notes

Release date: 2012-03-27

Opera 11.62 is a recommended upgrade offering security and stability enhancements.

Changes since Opera 11.61

Changes since Opera 11.61

User interface
Find in page (Ctrl + F) uses last used Find inline type
Address field focus lost on restart when installing extensions with a toolbar button
Submit data-security-warning locks page with two warning dialogs where only one can be closed
No window control buttons on the menu bar when disabling the close button on tabs
Inefficient loading order of resources
Updated tr/hu/cs language strings
Can't easily save/open files downloaded in tiny pop-up
WebM decoder freeze
Opera replaces existing file when the 'Save As' dialog does not show the file extension

Updated tr/hu/cs language strings

Display and scripting
Some progressive JPEGs aren't decoded properly
Crash when inspecting a UserJSEvent object in Dragonfly
Facebook chat scrolling problems
Text cursor position lost when clicking to focus on a search match inside a textarea
Error message when sending mail at centrum.cz
IDNs starting with number are shown with punycode in address bar
Crash when posting message to extension background process

Mail, news, chat
Selected message not consistent on layout switching
Last selected message is forgotten through a restart
Scrolling or switching view is slow when there are messages with many addressees
Occasional crash when navigating message list

Support Ctrl+F5 and Shift+F5 for unconditional reload of web page (bypass cache)
URL Turbo mode header reduction generates invalid HTTP messages
Missing architecture information in the User Agent

Presto 2.10 rendering engine
Encoding improvements
Changed multi-byte encodings to be non-greedy when encountering invalid byte sequences, which is more compatible with other implementations

Fixed an issue where small windows could be used to trick users into executing downloads, as reported by Jordi Chancel; see our advisory
Fixed an issue where overlapping content could trick users into executing downloads, as reported by Jordi Chancel; see our advisory
Fixed an issue where history.state could leak the state data from cross domain pages; see our advisory
Fixed an issue which could allow web page dialogs to display the wrong address in the address field; see our advisory
Fixed an issue where carefully timed reloads and redirects could spoof the address field, as reported by Jordi Chancel; see our advisory

Changelog also applies in Mac and Linux