In case you missed it, the Ukrainians have made another major step forward, at Russian expense, in the use of drones. Due to unsustainable losses, what remains of the Russian Black Sea Fleet was pulled out of the northern half of the Black Sea over a year ago and is docked in the Russian port of Novorossiysk. This time using a domestically produced underwater drone, which no one else yet operates, Ukraine penetrated the port and severely damaged one, and quite likely two Kilo Class Russian submarines. These boats were being used to launch cruise missiles at Ukrainian cities.
Like every other attack, the Russians deny it occurred or that any damage was done, but the evidence is pretty compelling. I wonder if anyone has had the nerve to tell Putin.