In December 2023, the lead submarine of the Project 955/Borey class, Yuri Dolgorikiy, entered overhaul, which will include refueling of its reactor (the operation was reported to be performed in July 2024). The overhaul is expected to last 2 to 3 years.

The last activity of the submarine before the overhaul was a launch of a Bulava missile in August 2019. The submarine conducted its first Bulava launch in June 2011