Changelog

All notable changes to TwinCommit. Versions follow semantic versioning.

1.6.0 — 2026-11-14

Added

• Azure Synapse Analytics target (dedicated SQL pools and Fabric Data Warehouse).
• Data lake targets: Azure Data Lake Storage Gen2, Amazon S3 and Google Cloud Storage, writing Delta Lake, Apache Iceberg or Parquet in merge or append mode.
• Catalog registration for Iceberg tables in AWS Glue, Amazon S3 Tables, the BigLake metastore, REST catalogs and the Hive Metastore.

1.5.0 — 2026-11-12

Added

• Sources: MySQL, MariaDB, MongoDB, Apache Cassandra and SAP HANA.
• Targets: Oracle, IBM Db2, MySQL, MariaDB, SAP HANA, MongoDB, Apache Cassandra, Redis, Elasticsearch, Amazon Redshift and Google BigQuery.
• twincommit run -role cassandra-reader for per-node Cassandra CDC readers.
• MongoDB target: nest option to embed child tables as arrays.

Changed

• twincommit check now covers every new source and target.

1.4.0 — 2026-11-03

Added

• MCP server tools check_source and tail_events.
• Databricks target: soft_deletes option and liquid clustering on primary keys.
• Kafka target: protobuf format.

Changed

• Default batch.flush_interval for lakehouse targets is now taken from merge_interval.

Fixed

• Oracle: SCN ordering across RAC threads after an instance restart.

1.3.0 — 2026-09-15

Added

• MCP server (@twincommit/mcp) with eight tools, read-only by default.
• control block with token authentication and allow_writes.
• Snowflake target via Snowpipe Streaming.

Fixed

• SQL Server: reading log backups when the active log has been truncated.

1.2.0 — 2026-07-08

Added

• Apache Hive target (ACID and Iceberg modes).
• Apache Spark Structured Streaming connector.
• Leader election in the Helm chart.

1.1.0 — 2026-05-12

Added

• Oracle and SQL Server sources.
• Databricks and Kafka targets, including a Debezium-compatible format.

Changed

• state_schema default renamed to twincommit.

1.0.0 — 2026-03-02

Added

• First general availability release.
• Db2 LUW and PostgreSQL sources; PostgreSQL and SQL Server targets.
• check, ddl, snapshot, run, status, verify and logdump commands.
• Prometheus /metrics and JSON /status endpoints.
• Exactly-once, commit-ordered apply with in-transaction checkpoints.