Microsoft has been busy incorporating updates and making changes to their Office 365 features to better serve their users. This most recent update comes on the heals of several other noteworthy updates, including recent Lync updates, which you can read more about here
These customer-requested features aim to improve the Office 365 experience for all users, and this most recent update does just that. The update was announced on November 1st by an Office 365 Product Manager, stating new changes allow anyone to join Lync mobile meetings, including people without Office 365 accounts.
To read more about this update check out the latest blog
and hear first hand from Office 365 Product Managers.