slingdata-io/sling-cli v1.5.9

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Sling v1.5.9 (2026-02-23T15:13:21Z)

Change Data Capture (CDC)

• New change-capture replication mode
• Supports initial full/chunked snapshot then incremental CDC
• New merge strategies: change_capture and change_capture_soft (soft delete)
• CDC merge templates for: Postgres, MySQL, Snowflake, BigQuery, SQL Server, DuckDB, Redshift, Databricks, ClickHouse, SQLite, D1, DB2, Exasol, Oracle, StarRocks
• Pre-release for testing, not ready for production yet

Chunking Improvements

• Optional WHERE clause support added to chunk query functions
• Fix bug where start-date is 0000-01-01

CLI Cleanup

• Removed legacy subcommands
• Centralized execution ID into core/env package (env.ExecID)
• Enhanced file logging: exec ID prefix and log cleanup (added SLING_LOG_DIR env vars)

Proxy Support

• New SLING_PROXY environment variable (or proxy_url per-connection property) for proxy configuration

Bug Fixes

• StreamRowsContext column mapping streamlined; sync issue fixed
• Prometheus connector: consistent float conversion via toFloat method
• Time format strings in NewStreamProcessor clarified
• MySQL/MariaDB primary key handling improved in GenerateDDL
• InferColumnTypes preserves explicit types for empty datasets