With the recent code changes pushed on Sunday comes new features and new bug fixes.
Most importantly, users are now allowed to log in to their accounts anonymously. This means, you will no longer show up in the "Current Online Users" list on the home page. To access this feature, click the Login link next to Register. Here you will see a check box allowing to to be logged in anonymously.
*Note: this does not mean that you are anonymous to the site. This means you will be logged in but not showing your activity to the public.
With this last code push we also have a series of bug fixes and security updates. Basic missions 4 and 5 have had their email systems updated to prevent the site being blacklisted by mail servers. The mission now checks that the email you attempt to send it to is the one you registered your HTS account with.
Lastly, we have updated various features to use a [url=http://en.wikipedia.org/wiki/Cryptographic_nonce]nonce[/url] which helps us prevent CSRF attacks. A few of the features still had bugs while using the nonce and they should be updated now.
~fas