Earlier this year, we unveiled the new Twenty Ten default theme. Every blog using the theme was automatically set with the header image shown below.

But, because there are actually seven other equally lovely header images in Twenty Ten, we have now randomized the default header image for each blog. If you use Twenty Ten, you may see a brand-new image starting today.

If you have uploaded a custom header or selected one of the built-in choices, don’t worry: your blog won’t be affected. And, if you want to switch back to the image above, you can go to Appearance->Header in your Dashboard to make the change.

For more information on all of the theme’s images, read The Headers of Twenty Ten.