Changelog
Additions happen inside a version. A remove or a rename is a new version, and both run for 90 days before the old one stops.
v1
Webhooks: a signed address per webhook source, with a signing secret, rotation and a retry contract. A write key no longer pushes to a webhook source.
v1
Access keys carry a scope: read, write or read_write. A read endpoint for a source's samples. Keys made before this are write.
v1
The first version. The push endpoint, the receipt and the error shape.