Cumulative update

An update that contains all previously released fixes for the product. Practically: you do not need to install the chain in order — the latest one brings the machine current.

For coordination this matters twice. First, it collapses window count: a host three months behind needs one window, not three. Second, it explains why last install date is a more useful measure than count of open vulnerabilities — it states the point in time up to which the machine is covered.