Is there seriously not a single person in the past three weeks who has seen this and not had the minute to spare to say "yes, this should be documented"?
Should the following paragraph in the docs be modified to point out minimum server version of v17 for incremental backups?
pg_basebackup works with servers of the same or an older major version, down to 9.1. However, WAL streaming mode (-X stream) only works with server version 9.3 and later, and tar format (--format=tar) only works with server version 9.5 and later.