It’s been a long awaited feature for the app that should be Microsoft’s answer to Slack: collaborating with users from outside your organization in Teams. While the feature has been announced earlier, it has been postponed moments before it’s initial launch date. But it’s finaly here: in this blogpost the general manager for Teams announces guest access for Teams.

Of course, for an app that aims at facilitating collaboration and fighting shadow IT, when rolling out externa access security should be a big priority. Microsoft accomplished this by leveraging Azure AD B2B Colloboration. This enables, for example, conditional access policies to be applied to guest accounts.

Along with this major feature, new developer tools for MS Teams have been announced on the MS Dev Blog.