Oct 15, 2010 11:33 GMT  ·  By

Opera Software paved the way to the first Build of Opera 11 with a last development snapshot of Opera 10.70. After yesterday the Norwegian browser maker announced that Opera 10.70 will become Opera 11, today, October 15th, 2010, version 10.70 draws its last breath.

Opera 10.70 Build 9071 is available for download for early adopters that are testing the next iteration of Opera.

This is the last that testers will see of Opera 10.70, with Opera Software having announced early in the development process that the moniker used for the development process could change, with another brand chosen for release.

At this point in time, the first Alpha Build of Opera 11 is cooking. Opera Software did not say when baking time will be over, but it did underline that it was going to offer Opera 11 Alpha as soon as possible.

And with Opera 10.70 Build 9071 being the last 10.70 release, it should be perfectly clear that the next development milestone of the browser will be Opera 11 Alpha.

Opera 10.70 Build 9071“is also the last 10.70 build. Being a 10.70 build it does not include extensions. The first build with extensions will be an 11.00 build and we'll get it to you as soon as possible,” revealed Ruari Ødegaard, from the Opera Desktop team.

Opera 11 was unveiled to the world on October 14th, with the promise that it will bring Extensions to the table.

“Extensions in Opera is a way for you to easily add new functionality to your Opera browser experience. Developers can easily create extensions using open standards (HTML5, CSS, JavaScript) and supported APIs,” noted Opera’s Espen André Øverdahl.

“Extensions will be based on the W3C Widget specifications and this is being considered for an Open Standard effort.”

The promise from Opera Software is that developers will be able to leverage an API (application programming interface) in order to build extensions for Opera 11.

But devs will only be able to start developing and publish projects after Opera 11 Alpha ships.

“With the first iteration of Opera Extensions we are focusing on open web standards and 'getting it right'. Our alpha release supports injectable JavaScript, callouts, certain UI items and a basic Tabs and Windows API,” Øverdahl added.

Still, with this week’s announcements from Opera Software, developers will not have too much to wait until they will be able to start extending the browser.

Opera 10.70 Build 9071 is available for download here.

Opera 10.63 is available for download here.