Opera released Version 10.52 of its browser yesterday.

Opera 10.52 is a recommended stability upgrade. Opera highly recommends all users to upgrade to this version to take advantage of these improvements.

So if you are a Opera user it is recommended to upgrade the version to the latest 10.52.

You can read the change logs for the windows version here (from 10.51) This includes many fixes in Opera Widgets for Desktop, Opera Unite, Network, Mail, News, Chat and user interface.

and can download the latest version from Opera home page here

Highlighted bug fixes since Opera 10.51

Fixed a crash on closing tab with PDF plugin

Fixed issues with pages never stop loading

Fixed issues with caching

Fixed an issue with opening email attachments

Fixed an issue with access to Unite administration pages

Fixed a crash with various third-party apps on Facebook

Fixed an issue were mails could be lost when upgrading from Opera 9.27