Give any rule an active date window and a policy change turns itself on and off. Schedule a price change weeks ahead, retire a promotion at midnight, and prove both work with a simulated run date in your tests.
Turn on Inference and your rules re-fire as their actions change the facts other rules read — one firing at a time by salience, only where inputs actually changed, until the run reaches a stable state.
The RuleSet editor has been rebuilt around a DMN-style decision table: every rule is a row, every context key is a column, and you can author conditions and outputs inline without opening a single dialog.