You might notice that the “Login” button is no longer on the top menu. The login function has been moved to a “Login” link on the upper-left corner of most pages. Logging in via that link will return you to the page you were on. If your login level allows editing, the “Login” will be replaced with “Edit” next to a pencil. If you do not have editing privileges, “Login” will simply disappear.
Also, in order to add posts, you no longer have to go through the dashboard. Under “Posts” in the main menu, there’s an “Add Post” option. If you are logged in, it will take you directly to the page for adding a post. If you are not logged in, it will take you to the login screen.