Seattle took longer to count their ballots than other cities, and they had something a little more complicated: one question on whether to change the voting system at all, and another question on whether that change should be ranked choice voting or approval voting. People who voted no on the first question could still vote on the second.
There was a bare majority for change, which is why it took so long, but the vote was about 3-1 in favor of ranked choice voting over approval voting. So now we can now add Seattle to the list of cities that will be using RCV.
The others from November 2022 are: