• added support for upserts and other ON CONFLICT clauses for INSERT
  queries (#174)
• added a custom index-backed scan (#205). This scan is disabled by default as it
  may adversely affect performance. To enable this scan, use:
  SET columnar.enable_columnar_index_scan = true;
• added Postgres 16 support (#200)
  • parquet_s3_fdw and multicorn-based FDWs are not yet supported in PG 16. These
    extensions are included only on PG 13-15 builds.
• update pg_ivm to 1.7.0 (#200)
• update pgsql-http to 1.6.0 (#200)

The corresponding docker images are:

• PG 16: docker pull ghcr.io/hydradatabase/hydra:16-e8107709cc62316da9b2cb8fe0d3cb22ba6e470f
• PG 15: docker pull ghcr.io/hydradatabase/hydra:15-e8107709cc62316da9b2cb8fe0d3cb22ba6e470f
• PG 14: docker pull ghcr.io/hydradatabase/hydra:14-e8107709cc62316da9b2cb8fe0d3cb22ba6e470f
• PG 13: docker pull ghcr.io/hydradatabase/hydra:13-e8107709cc62316da9b2cb8fe0d3cb22ba6e470f