Foundry transforms upgraded to Apache Spark 4.0.1

UpdateSep 22, 2026VerifiedAdded Sep 22, 2026

The Apache Spark version used in Foundry transforms is being upgraded from 3.5.5 to 4.0.1 for all enrollments. No action is required.

Read Palantir's release notes

https://www.palantir.com/docs/foundry/announcements/2026-09/#foundry-transforms-now-run-on-apache-spark-401

Summaries of vendors' own notes. Product names and logos belong to their owners; logos via logo.dev.

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