Roadmap

Planned: Mink writes ended time buckets to Iceberg and serves one catalog over that history and Kafka.

History in Iceberg

Planned. Not built.

	Built	Planned
Table	The records Kafka holds	The Iceberg history and the newer offsets in Kafka, with no gap or overlap between them
Data files	Built from Kafka on read, and cached	Ended, assembled time buckets written to the bucket as Parquet. Newer buckets still built from Kafka.
File sizes	Assembled up to assembled_bytes	Written slowly, after assembly, as large files only. No small files and no compaction jobs.
Bucket	Iceberg metadata only	Iceberg metadata, and the history's data files
History	As far back as Kafka's retention	Kept after Kafka's retention deletes the records
Freshness	Every record committed when the table loads	Unchanged
Catalog	Read-only	Read-only. Mink is the only writer.