If you regularly send private messages to your LinkedIn contacts, you may have noticed that the LinkedIn messaging experience has been recently improved with little green bubbles for your connections. The new feature called Active Status is currently rolling out to all users on the web and mobile, and it's turned on by default (via ZDNet).
Overall, the new feature turns LinkedIn messaging into something very similar to Facebook chat: When Active Status is on, you and all your contacts currently active on LinkedIn will have a green circle on their profile picture in LinkedIn messaging, and receive instant notifications for private messages. If you're not actively using LinkedIn but have push notifications turned on on the mobile app, you'll have a hollowed out green circle on your profile picture.
As you may not want your LinkedIn contacts to see when you're active on LinkedIn or if you use the mobile app, you can turn Active Status off from the Settings & Privacy page. However, be aware that doing so will make you lose the ability to see when your contacts are active on LinkedIn.
If you're not seeing the new feature in your LinkedIn account yet, a Microsoft spokesperson told ZDNet that "we are gradually rolling out this feature and it will be available to all members in the next few weeks." The spokesperson added that LinkedIn will officially announce the new feature on the LinkedIn blog later this week, but you can already learn more about Active Status with this support page.