It includes Python client for Spark Connect, more ANSI SQL compliance, very good improvements in Structured Streaming, new built-in functions, and much more.<p>There is a blog post on Databricks with more details for most notable features: <a href="https://www.databricks.com/blog/2023/04/14/introducing-apache-sparktm-34-databricks-runtime-130.html" rel="nofollow">https://www.databricks.com/blog/2023/04/14/introducing-apach...</a>