The new version will come out soon and it would be good to have it in main.
Since we are quite behind I think we should directly update to the latest version. In the past we thought that having a Flatcar release with a version in-between available would help with finding the point of a regression but I doubt it's really that helpful because things get backported for systemd stable releases anyway. Also it would mean to do 3 version updates where 2 are not used in the end.