• Upgrade Databricks SQL Kernel to 1.1.0; the kernel dependency is now stable and no longer experimental.
• Transparently auto-recover Thrift connections to Reyden / Real-Time warehouses: when a warehouse rejects the default Thrift protocol (SQLSTATE KP001), the session is re-opened on the kernel backend and the warehouse is remembered so later connections skip Thrift. Applies only when no backend was chosen explicitly.
• Reject an mTLS private key without a client certificate, and identify missing or empty client certificate/key files in connection errors.
• Forward _pool_maxsize to supported Databricks SQL Kernel versions.