chore(deps): bump databricks-sql-connector from 4.2.6 to 4.3.0

[dependabot]

Bumps databricks-sql-connector from 4.2.6 to 4.3.0.

Release notes

Sourced from databricks-sql-connector's releases.

v4.3.0

• New: optional Rust kernel backend (use_kernel=True). Adds an alternative connection path backed by the native databricks-sql-kernel client (a Rust core exposed via PyO3), installable with the new databricks-sql-connector[kernel] extra. The kernel talks to Databricks over the SEA (Statement Execution API) HTTP transport — not Thrift — with CloudFetch and inline-Arrow result fetching, so use_kernel=True gives you a modern SEA-native client through the same DB-API surface. Supports PAT, OAuth M2M, and OAuth U2M auth. Requires Python >= 3.10 (the kernel wheel is cp310-abi3); on older interpreters the extra is a no-op and use_kernel=True raises a clear ImportError. The default backend remains Thrift — opt in per connection.
• Kernel backend behavior is aligned with the Thrift backend so application code works the same either way: consistent cursor-state tracking (query_id / get_query_state), metadata (catalogs/schemas/tables/columns with JDBC-style filter semantics and case-insensitive table_types), DML rowcount, server-sourced async execution state, sync cancel(), fail-loud staging/volume operations, and structured error context (SQLSTATE, diagnostic info). Kernel logs surface through Python logging under the databricks.sql.kerneldatabricks/databricks-sql-python#824#825, #830, #838, #839 by @​vikrantpuppala)
• databricks/databricks-sql-python#840@​vikrantpuppala)

v4.3.0rc1

• Add optional Rust kernel backend for use_kernel=True, installable via the new databricks-sql-connector[kernel] extra (requires Python >= 3.10). Routes connections through the native databricks-sql-kernel client, with parity work across cursor-state tracking, metadata, logging (kernel logs surface through Python loggingdatabricks/databricks-sql-python#824#825, #830, #838, #839 by @​vikrantpuppala)
• databricks/databricks-sql-python#840@​vikrantpuppala)

v4.2.7

• databricks/databricks-sql-python#817@​msrathore-db)
• databricks/databricks-sql-python#814@​jprakash-db)
• Add _retry_server_directed_onlydatabricks/databricks-sql-python#756@​sd-db)
• databricks/databricks-sql-python#796@​leoromanovsky)
• databricks/databricks-sql-python#768@​moomindani)
• databricks/databricks-sql-python#781@​samikshya-db)

Changelog

Sourced from databricks-sql-connector's changelog.

4.3.0 (2026-06-12)

• New: optional Rust kernel backend (use_kernel=True). Adds an alternative connection path backed by the native databricks-sql-kernel client (a Rust core exposed via PyO3), installable with the new databricks-sql-connector[kernel] extra. The kernel talks to Databricks over the SEA (Statement Execution API) HTTP transport — not Thrift — with CloudFetch and inline-Arrow result fetching, so use_kernel=True gives you a modern SEA-native client through the same DB-API surface. Supports PAT, OAuth M2M, and OAuth U2M auth. Requires Python >= 3.10 (the kernel wheel is cp310-abi3); on older interpreters the extra is a no-op and use_kernel=True raises a clear ImportError. The default backend remains Thrift — opt in per connection.
• Kernel backend behavior is aligned with the Thrift backend so application code works the same either way: consistent cursor-state tracking (query_id / get_query_state), metadata (catalogs/schemas/tables/columns with JDBC-style filter semantics and case-insensitive table_types), DML rowcount, server-sourced async execution state, sync cancel(), fail-loud staging/volume operations, and structured error context (SQLSTATE, diagnostic info). Kernel logs surface through Python logging under the databricks.sql.kerneldatabricks/databricks-sql-python#824#825, #830, #838, #839 by @​vikrantpuppala)
• databricks/databricks-sql-python#840@​vikrantpuppala)

4.2.7 (2026-06-02)

• databricks/databricks-sql-python#817@​msrathore-db)
• databricks/databricks-sql-python#814@​jprakash-db)
• Add _retry_server_directed_onlydatabricks/databricks-sql-python#756@​sd-db)
• databricks/databricks-sql-python#796@​leoromanovsky)
• databricks/databricks-sql-python#768@​moomindani)
• databricks/databricks-sql-python#781@​samikshya-db)

Commits

• 815b341 Bump to version 4.3.0 (#842)
• 8dd350d Bump to version 4.3.0rc1 (#841)
• 95de6a2 build(kernel): add optional [kernel] extra for use_kernel=True (#839)
• e742771 Revert "Bump thrift to 0.23.0 (#796)" — fixes install failure on DBR LTS (ES-...
• 0dbec57 fix(kernel): server-sourced async state + cursor-state/metadata parity for us...
• 85f8ba3 fix(kernel): stop premature sync statement close (H4); bump KERNEL_REV to bat...
• a3e882e feat(kernel): surface kernel logs through Python logging on use_kernel (#824)
• 015ee47 test(e2e/mst): DESCRIBE QUERY is now allowed in transactions (#836)
• a2fe99f feat(kernel): wire CUJ-gap fixes — staging fail-loud, error context, sync can...
• 614dd91 Bump to version 4.2.7 (#821)
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