Opera 10 is a web browser developed by Opera Software ASA, available for download in full install version for Windows platforms from legacy sources. This version of Opera was officially released on 2009-09-01 for public access and a brief summary of important updates and change log pertaining to this edition can be read below.

Opera 10 has been built on Presto 2.2 rendering engine and there are about 20 builds from its beta version released on 03-Jun-2009 to the final edition 10.63 released as late as on 12-Oct-2010 spanning more than fifteen months.

There are huge list of changes in this edition and important one among them includes in Auto Updater, Crash logging Tool, Inline Spell Checker, Dragonfly, and Turbo Mode.

With Auto Update feature, now opera updates can be done online automatically whenever there is a update patch is released and it will be notified to user before updation. 

With introduction of Crash Logging tool, whenever the browser crashes, the snapshot can be sent to opera team through this tool which can help opera team to identify the bugs in real usage.

An inline spell checker would notify the user with dotted red lines, when even any keyboard input is entered whether in search or in mail. With this edition, Opera mail can compose Rich Text messages, instead of simple text message, a boon for Opera mail users.