Databricks Runtime 13.3 LTS is a long-term support release of the Databricks platform, built on Apache Spark 3.4.1. It was released in August 2023 and offers improved stability, performance, and security for big data analytics.

Key features and enhancements:

• Scala Support for Shared Clusters: Enhanced Scala support for improved cluster utilization.
• Allowlist for Init Scripts, JARs, and Maven Coordinates: Increased security and control for Unity Catalog shared clusters.
• Volumes Support for Init Scripts and JARs: Improved flexibility in managing initialization scripts and JAR files.
• Safe Casts Enabled by Default for Delta Lake Operations: Enhanced data integrity and reliability.
• We are introducing Tags with Unity Catalog: Simplified organization and management of data assets.
• Improved Error Handling: More robust error handling for file modifications between query planning and invocation.
• Enhanced Security: Blocked schema overwrite when using dynamic partition overwrites.
• Integration of copyFile API: Streamlined file copying operations.
• ODBC/JDBC Driver Support: Support was added for unnamed (positional) parameter markers.