v4.2.0
[SPARK-48809][PYTHON][DOCS] Reimplemented `spark version drop down` of the `PySpark doc site` and fix bug
[SPARK-56135][DOCS] Add option to use venv in PySpark docs
[SPARK-58038][DOC] Fix to use Hadoop 3.5 in PySpark installation guide and Spark Connect overview
[SPARK-57452][DOC] Add missing 4.2 behavior changes to migration guides
[SPARK-57072][PYTHON][DOC] Add missing 4.2 methods to PySpark API reference
[SPARK-56351][PYTHON][DOCS] Add dedicated documentation page for Arrow Python UDFs
[SPARK-54323][PYTHON] Change the way to access logs to TVF instead of system view
[SPARK-55540][DOCS] Fix capitalization inconsistency in PySpark Overview "Live Notebook" link
[SPARK-53882][CONNECT][DOCS] Add documentation comparing behavioral differences between Spark Connect and Spark Classic