Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/4675#discussion_r24935349
--- Diff: docs/mllib-guide.md ---
@@ -90,6 +90,21 @@ version 1.4 or newer.
# Migration Guide
+## From 1.2 to 1.3
+
+In the `spark.mllib` package:
+
+* *(Breaking change)* In
[`ALS`](api/scala/index.html#org.apache.spark.mllib.recommendation.ALS), the
extraneous method `solveLeastSquares` has been removed. The `DeveloperApi`
method `analyzeBlocks` was also removed.
--- End diff --
Shall we try to make the sections as code tabs? It is getting longer and
longer.
For the `breaking change`, we should mention that they are experimental or
developer APIs. `ALS.solverLeastSquares` is perhaps the only outlier.
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