Microsoft today began distributing the revamped Lync client, dubbed Skype for Business since last November, to Office customers.

The updated client was part of the April refresh for Office 2013 issued Tuesday. Not only rebranded but also redesigned from the older Lync, Skype for Business borrowed some user interface (UI) elements from the consumer-grade Skype client.

Office 365 customers with rights to Lync Online — including those signed up with Business Premium ($12.50 per user per month) and Enterprise E3 ($20) — will receive the new client starting today. But the rollout won’t wrap up until the end of May, Microsoft said.

Microsoft announced the changes in November, three years after the acquisition of Skype, finally answering analysts’ questions about why the firm maintained two lines of such similar software. Both Lync and Skype focused on instant messaging and video conferencing, with the former relegated to businesses and the latter aimed at consumers.

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