It seems that all of the examples show a nice set of connection pips at the bottom edge of a Sequencer node, but these seem have gone away in the latest version. So how can I tell which node is the next in the sequence?
The design of the connections has been changed in recent versions so that all connection outputs come out of a single point.
However in both the previous design as well as the new one, the child nodes were/are always evaluated from left to right. Because of this, there was no good reason to show the connections separately. It is only a UI change, but the ordering and behaviour remain the same.