Canonical’s CEO Jane Silber said she’ll be stepping down from that position in July. She will, however, remain on Canonical’s board of directors.

Silber has served as Canonical’s CEO since 2010. She initially joined the company in 2004 as chief operations officer. Canonical Founder Mark Shuttleworth will replace Silber as CEO.

“This is not a sudden decision,” wrote Silber in a corporate blog. “I originally agreed to be CEO for five years, and we’ve extended my tenure as CEO by a couple of years already. In July, Mark will retake the CEO role and I will move to the Canonical board of directors. In terms of a full-time role, I will take some time to recharge and then seek new challenges.”

In addition to founding Canonical, Shuttleworth also founded the Ubuntu open source project at the same time. Canonical sells commercial Ubuntu-based products and is also the lead contributor of the Ubuntu open source project.

Earlier this month, Shuttleworth announced in a corporate blog that Canonical was discontinuing its Unity desktop business. He said Canonical would be focusing on cloud and IoT.

“The choice, ultimately, is to invest in the areas which are contributing to the growth of the company,” he wrote. “Those are Ubuntu itself, for desktops, servers and VMs, our cloud infrastructure products (OpenStack and Kubernetes), our cloud operations capabilities (MAAS, LXD, Juju, BootStack), and our IoT story in snaps and Ubuntu Core.”

In March, Canonical announced the integration of Huawei’s CloudFabric data center network system with Canonical’s Ubuntu OpenStack.