NBC’s veteran Lester Holt, 65, is stepping down as anchor of the network’s flagship “Nightly News” broadcast in the coming months.

Holt, who has been the face of “Nightly News” for a decade, won’t be leaving NBC altogether, however. In a memo to staff Monday, he said he would be expanding his work on NBC’s “Dateline,” taking on a full-time role.

The transition is expected to take place early this summer. No firm date or successor for “NBC Nightly News” has been named yet.

“It has truly been the honor of a lifetime to work with each of you every day, keeping journalism as our true north and our viewers at the center of everything we do,” Holt wrote in his note thanking colleagues. “A smile comes to my face when I think that with Nightly News, and Dateline, I have now anchored two of the most successful and iconic television news programs in broadcast history.”

MSNBC, which is set to no longer have any corporate connection to NBC News once a spinoff formally takes effect later this year, is also seeing some changes to its prime-time line up.

In a Monday memo to staff, MSNBC’s new president Rebecca Kutler announced that Joy Reid would be leaving the network — marking an end to the political analyst and anchor’s show, “The ReidOut.”