When I followed the development I thought that UPD would only change its name to ACT, but when switching from pulse to boolean, if I want to activate I need to use delay node or one that enbie bool instead of pulse
To put more clarity: ACT is only for the quickstart nodes of idempotent actuators. Inside their implementation, they compose one or more action nodes which behave imperatively and use good old UPD/DO/whatever pulse.
If you make something that should delay an effect, delay the value or use the underlying action node activated by a pulse.