• When you select multiple items in the upper pane, the lower pane will now display the raw text returned from the WHOIS servers of all selected items. (In previous versions, the lower pane was empty when multiple items were selected in the upper pane)

• Improved: Rendering speed when switching to To Do or Notes modules
• Improved: Loading time for Rich Text email messages
• Fixed: "Transaction is not active" error when editing recurring appointments or contacts' birthdays
• Fixed: "AV" error when emptying the Deleted Items folder in Mail
• Fixed: Google Contacts synchronization issue
• Fixed: Drag and Drop of to dos onto another tabs
• Fixed: Random moves in the Tree view when editing To Dos directly from the list (single long click)
• Fixed: Spell check in Mail using F7
• Fixed: Some text formatting issues in Notes
• Fixed: HALO related issue when sending email messages
• Fixed: Issue with attachments not being added to forwarded messages in Mail
• Fixed: Inability to see and add attachments for To Dos shown in Calendar
• Fixed: Issue with adding new appointments directly from the day/week/month/year views
  

Opera 10.61 is a recommended security and stability upgrade.

Opera highly recommends all users to upgrade to this version to take advantage of these improvements.   

Changes since Opera 10.60 for Windows  

User interface

• Changed "Fraud Protection" renamed to "Fraud and Malware Protection"  

Fixed

• Relative paths not working in the Filename setting for Speed Dial background
• Premature shutdown when using vBulletin's WYSIWYG editor
• Loading an animated png causes high CPU usage with no response from the browser
• yahoo.cn mailproviders SMTP entry not using a submission port
• Changing the default cookie preference to "Accept all cookies"
• Installing Opera 10.60 windows overwrites saved search preferences  

Display and Scripting   

• Google Calendar compatibility
• Unite listening on UDP 1900 even if UPnP service discovery is off
• Several cases where widgets will not run
• Premature shutdown when loading qq.com
• Setting the onload property of XMLHttpRequest blocks document memory from being garbage collected
• Opera treating binary files as plain text (opening it in the browser instead of showing a download dialog)
• Premature shutdown when loading the Canvas demo
• Printing from print preview results in either a freeze or corrupted page
• Widgets not having access to a network after restart
• "Accept cookies" and "only from the site I visit" settings being incorrect in Preferences dialog
• Premature shutdown occurring on startup of Opera under Windows 98
• Disk cache not working correctly in turbo mode  

Security

• Fixed an issue where heap buffer overflow in HTML5 canvas could be used to execute arbitrary code, as reported by Kuzzcc; see our advisory.
• Fixed an issue where unexpected changes in tab focus could be used to run programs from the Internet, as reported by Jakob Balle and Sven Krewitt of Secunia; see our advisory.
• Fixed an issue where news feed preview could subscribe to feeds without interaction, as reported by Alexios Fakos; see our advisory.

• Added 'Password Strength' column, which calculates the strength of the password and displays it as Very Weak, Weak, Medium, Strong, or Very Strong.