Today, Google is making the biggest changes to Gmail since 2011. The huge redesign that leaked earlier this month is finally going live, and all the features in that leak have been confirmed by Google. Gmail is getting a new design that seems to align with our theorized "Material Design 2" design principles. A pane on the right side shows in-line interfaces for Google Calendar, Google Keep, and Google Tasks. In the future you'll be able to send "Confidential" emails that expire at a set time or can be unsent at any time. Gmail now also has features from Google Inbox like snoozing emails and computer generated Smart Replies.

Google is picking today as the announcement and launch day, but Google's painfully slow rollouts mean you won't necessarily have access to the new Gmail immediately. When the Gmail upgrade comes to your account, you'll be able to click on the gear and select "try the new Gmail." For a personal account, this will just happen at some point in the future; GSuite users will need their admins to enable the opt-in message. If you're not a fan of the new design, you can return to the old 2011 Gmail at any time through the gear menu.

Along with all the features in the previous leak, there are a few new Gmail features revealed in today's announcement blog post. A new "Nudge" feature will point out emails that have sat untouched in your inbox for some time. In the demo, orange text is shown in line with the message that says "Received 3 days ago. Reply?" Another new feature is the ability to deal with messages with a single click right from the inbox, thanks to inline action buttons like "Archive," "Delete," and "Snooze." Security warnings are also getting a bolder, more alarming red design.

In the future, Gmail will start to automatically suggest you unsubscribe from mailing lists based on what you actually read. Later, there will also be an offline mode.

Ars Technica