srowen commented on issue #24418: [SPARK-24601][SPARK-27051][BACKPORT][CORE] Update to Jackson 2.9.8 URL: https://github.com/apache/spark/pull/24418#issuecomment-485269004 I support this, and wanted to more fully explain the logic, as it occurs to me not all of it was visible in the conversation here: - The Jackson security issue has come up a few times on JIRAs - It was actually raised again on the security@ list for the project last week - I can also say this has been raised by a few customers at Databricks, FWIW - Having the older version is also beginning to cause problems with apps that want to include third-party libs that depend on newer Jackson - There's a perf boost Weighing that against the relatively small behavior change I think it's the right thing for 2.4.x. This won't go into 2.4.2 unless there is another RC. If not, it'll be in 2.4.3.
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