Join Teams work meetings from Microsoft Teams (free) and vice versa

Microsoft Teams (Free) users can currently join Teams for work (or school) meetings only as guests, which requires them to use a browser and results in a sub-optimal experience. The new feature rolling out will allow these users to join Teams for work (or school) meetings in one click, without being redirected to the browser or asked to fill in their name/surname. They will also be able to continue collaborating with the meeting organizer and other participants via meeting chat after the meeting.  The feature will work in the opposite way as well, so Teams for work (or school) will just as easily be able to join meetings hosted by a Teams Free user with one click. This is associated with Roadmap ID: 167326

Friendly reminder: Skype for Business Online will be retired one year from now

A friendly reminder came through the O365 admin center just before the week-end: Skype for Business Online will retire 12 months from now. 

So if you have not begun to think about your company's journey to Teams yet, I would say it would be smart to start before it is getting to late.