[5] Differences in the project have appeared sufficient to consider it as a new upgraded version Yasen-M (Russian: Ясень-М).
[5] Compared to the first-of-class Severodvinsk, Kazan and Novosibirsk are some 40 feet (12 m) shorter, resulting in the deletion of a sonar array from the former's bow.
[7] On 21 August 2014, the vessel completed hydraulic pressure hull tests as part of its construction process.
[2] It began its sea trials on 1 July 2021 and was projected to join the Pacific Fleet of the Russian Navy in 4th Quarter 2021.
[3] On 19 September 2022, Novosibirsk and the submarine Omsk respectively launched P-800 Oniks (SS-N-26 Strobile) and P-700 Granit (SS-N-19 Shipwreck) cruise missiles against seaborne targets in the Chukchi Sea.