Company changes (registered / changed / ceased) for a CVR-nummer list or a kommune

The change feed behind the cvr.* webhooks: companies the weekly CVR harvest found registered (cvr.oprettet), changed on a served field (cvr.aendret: navn, status, ophoersdato, virksomhedsform, adresse, kommunekode, kommune, branche) or ceased (cvr.ophoert: status ophørt / tvangsopløst, or an ophørsdato appearing), in sekvens order. Give at least one of cvr_nummer or kommunekode (comma-separated lists allowed; a kommune also matches companies that moved out of it). Page with efter = the previous response’s naeste_efter. The corpus is reloaded weekly, so a change appears up to about a week after CVR registered it; changes are kept for 35 days. An empty page means "no changes" only up to meta.feed.senest_opdateret, and only while meta.feed.forsinket is false.