Well no official confirmation is out but this Changeset done by Ryan just 25 minutes ago confirms it. Download it from here. To Automatically upgrade from 2.7 Control Panel, just open the file wp-includes/version.php and change line number 11 from
[php firstline=”11″ toolbar=”false”]$wp_version = ‘2.7’;[/php]
[php firstline=”11″ toolbar=”false”]$wp_version = ‘2.7.1-beta’;[/php]
And now autoupgrade.
This version fixes some long time bugs such as timezone updates for revisions and saved drafts and index.php problem if incountered in a plugin directory.