Description: Backfill - a SQL Server source can load its history into BigQuery.
Changes
- Backfill - a SQL Server source can load its history into BigQuery (#4475).
- Salesforce source - an SObject is synced on the cursor it has, and a failed read holds that object alone (#4515).
- Salesforce source - a connector takes 100 SObjects, capped on the whitelist it provisions from (#4510).
- Oracle source - the CDC adapter is a connector setting (#4508).
- DP - A MySQL binary column reaches a target as base64, never as a Python repr (#4478).
- DP - a declared primary key is checked against the columns the target writes (#4505).
- Snow target - the durable-offset read leaves the poll thread (#4507).
- BigQuery target - a Debezium date reaches a legacy INTEGER column, and a row that cannot be written stops the worker (#4506).
- DP - MARIADB_SOURCE: connector type, mariadb-to-kafka strategy, flavour pre-flight (#4503).
- [ARCH] The Snowflake target listings take a port instead of building their own adapter (#4517).
- [FRONT] Part 1 of #4518: the pipeline stores read /pipelines/* through the service (#4520).
- DP - A missing primary key says why, and what it costs (#4491).
- [SEC] A pipeline write authorizes every connector it names (#4527).
- [TESTS] Pin what the wizard’s first subscriptions carry (#4529).
- DP - MariaDB’s introspection says it reads the key, like MySQL’s (#4534).
- BigQuery target - a batch is written, or the worker stops holding it (#4519).
- Release cut - data-plane 2026.09.28, chart 0.1.0-alpha.191 (#4525).