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| 1 | +# .NET for Apache Spark 0.12 Release Notes |
| 2 | + |
| 3 | +### New Features/Improvements and Bug Fixes |
| 4 | + |
| 5 | +* Expose `DataStreamWriter.ForeachBatch` API ([#549](https://github.com/dotnet/spark/pull/549)) |
| 6 | +* Support for [dotnet-interactive](https://github.com/dotnet/interactive) ([#515](https://github.com/dotnet/spark/pull/515)) ([#517](https://github.com/dotnet/spark/pull/517)) ([#554](https://github.com/dotnet/spark/pull/554)) |
| 7 | +* Support for [Hyperspace v0.1.0](https://github.com/microsoft/hyperspace) APIs ([#555](https://github.com/dotnet/spark/pull/555)) |
| 8 | +* Support for Spark 2.4.6 ([#547](https://github.com/dotnet/spark/pull/547)) |
| 9 | +* Bug fixes: |
| 10 | + * Udf bug caused by `BroadcastVariablesRegistry` ([#551](https://github.com/dotnet/spark/pull/551)) |
| 11 | + * Null checks for `TimestampType` and `DateType` ([#530](https://github.com/dotnet/spark/pull/530)) |
| 12 | +* Update `Microsoft.Data.Analysis` to v`0.4.0` ([#528](https://github.com/dotnet/spark/pull/528)) |
| 13 | + |
| 14 | +### Infrastructure / Documentation / Etc. |
| 15 | + |
| 16 | +* Improve build pipeline ([#510](https://github.com/dotnet/spark/pull/510)) ([#511](https://github.com/dotnet/spark/pull/511)) ([#512](https://github.com/dotnet/spark/pull/512)) ([#513](https://github.com/dotnet/spark/pull/513)) ([#524](https://github.com/dotnet/spark/pull/524)) |
| 17 | +* Update AppName for the C# Spark Examples ([#548](https://github.com/dotnet/spark/pull/548)) |
| 18 | +* Update maven links in build documentation ([#558](https://github.com/dotnet/spark/pull/558)) ([#560](https://github.com/dotnet/spark/pull/560)) |
| 19 | + |
| 20 | +### Breaking Changes |
| 21 | + |
| 22 | +* None |
| 23 | + |
| 24 | +### Known Issues |
| 25 | + |
| 26 | +* Broadcast variables do not work with [dotnet-interactive](https://github.com/dotnet/interactive) ([#561](https://github.com/dotnet/spark/pull/561)) |
| 27 | + |
| 28 | +### Compatibility |
| 29 | + |
| 30 | +#### Backward compatibility |
| 31 | + |
| 32 | +The following table describes the oldest version of the worker that the current version is compatible with, along with new features that are incompatible with the worker. |
| 33 | + |
| 34 | +<table> |
| 35 | + <thead> |
| 36 | + <tr> |
| 37 | + <th>Oldest compatible Microsoft.Spark.Worker version</th> |
| 38 | + <th>Incompatible features</th> |
| 39 | + </tr> |
| 40 | + </thead> |
| 41 | + <tbody align="center"> |
| 42 | + <tr> |
| 43 | + <td rowspan=4>v0.9.0</td> |
| 44 | + <td>DataFrame with Grouped Map UDF <a href="https://github.com/dotnet/spark/pull/277">(#277)</a></td> |
| 45 | + </tr> |
| 46 | + <tr> |
| 47 | + <td>DataFrame with Vector UDF <a href="https://github.com/dotnet/spark/pull/277">(#277)</a></td> |
| 48 | + </tr> |
| 49 | + <tr> |
| 50 | + <td>Support for Broadcast Variables <a href="https://github.com/dotnet/spark/pull/414">(#414)</a></td> |
| 51 | + </tr> |
| 52 | + <tr> |
| 53 | + <td>Support for TimestampType <a href="https://github.com/dotnet/spark/pull/428">(#428)</a></td> |
| 54 | + </tr> |
| 55 | + </tbody> |
| 56 | +</table> |
| 57 | + |
| 58 | +#### Forward compatibility |
| 59 | + |
| 60 | +The following table describes the oldest version of .NET for Apache Spark release that the current worker is compatible with. |
| 61 | + |
| 62 | +<table> |
| 63 | + <thead> |
| 64 | + <tr> |
| 65 | + <th>Oldest compatible .NET for Apache Spark release version</th> |
| 66 | + </tr> |
| 67 | + </thead> |
| 68 | + <tbody align="center"> |
| 69 | + <tr> |
| 70 | + <td>v0.9.0</td> |
| 71 | + </tr> |
| 72 | + </tbody> |
| 73 | +</table> |
| 74 | + |
| 75 | +### Supported Spark Versions |
| 76 | + |
| 77 | +The following table outlines the supported Spark versions along with the microsoft-spark JAR to use with: |
| 78 | + |
| 79 | +<table> |
| 80 | + <thead> |
| 81 | + <tr> |
| 82 | + <th>Spark Version</th> |
| 83 | + <th>microsoft-spark JAR</th> |
| 84 | + </tr> |
| 85 | + </thead> |
| 86 | + <tbody align="center"> |
| 87 | + <tr> |
| 88 | + <td>2.3.*</td> |
| 89 | + <td>microsoft-spark-2.3.x-0.12.0.jar</td> |
| 90 | + </tr> |
| 91 | + <tr> |
| 92 | + <td>2.4.0</td> |
| 93 | + <td rowspan=6>microsoft-spark-2.4.x-0.12.0.jar</td> |
| 94 | + </tr> |
| 95 | + <tr> |
| 96 | + <td>2.4.1</td> |
| 97 | + </tr> |
| 98 | + <tr> |
| 99 | + <td>2.4.3</td> |
| 100 | + </tr> |
| 101 | + <tr> |
| 102 | + <td>2.4.4</td> |
| 103 | + </tr> |
| 104 | + <tr> |
| 105 | + <td>2.4.5</td> |
| 106 | + </tr> |
| 107 | + <tr> |
| 108 | + <td>2.4.6</td> |
| 109 | + </tr> |
| 110 | + <tr> |
| 111 | + <td>2.4.2</td> |
| 112 | + <td><a href="https://github.com/dotnet/spark/issues/60">Not supported</a></td> |
| 113 | + </tr> |
| 114 | + </tbody> |
| 115 | +</table> |
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