To enable wide-scale community testing of the upcoming Spark 4.0 release, the Apache Spark community has posted a +Spark 4.0.0 preview2 release. +This preview is not a stable release in terms of either API or functionality, but it is meant to give the community early +access to try the code that will become Spark 4.0. If you would like to test the release, +please download it, and send feedback using either +mailing lists or +JIRA. +The documentation is available at the link.
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