Github user jkbradley closed the pull request at:
https://github.com/apache/spark/pull/15205
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GitHub user jkbradley opened a pull request:
https://github.com/apache/spark/pull/15205
[SPARK-16240][ML] ML persistence backward compatibility for LDA - 2.0
backport
## What changes were proposed in this pull request?
Allow Spark 2.x to load instances of LDA,
