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| <h1>Apache SystemDS<sup id="trademark">™</sup> 2.1.0 Release Notes</h1> |
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| <h2 id="release-notes-for-systemds-210">Release notes for SystemDS 2.1.0</h2> |
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| <p>SystemDS 2.1 is a minor release. This release contains major improvements |
| to existing features, a large number of fixes, and some experimental |
| features to better support the end-to-end data science lifecycle. |
| In addition to that, this is the last release with Java 8 and Spark 2.x.</p> |
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| <p>The major changes (compared to SystemDS 2.0) include</p> |
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| <ul> |
| <li>Federated Backend: Extended operations and built-ins to support various |
| workflows and algorithms. Extended parameter server for federated training |
| of Neural Networks.</li> |
| <li>A wealth of new and improved built-in functions including support for |
| string operations, time-series analysis, data cleaning, grid search |
| hyperparameter tuning, multi-threaded feature transformations.</li> |
| <li>Better support for Eval and list data structure.</li> |
| <li>Various performance improvements in SystemDS’ local, distributed, and |
| native runtimes.</li> |
| <li>Python API: Source functionality to allow arbitrary DML script, |
| auto-generated Python API for all built-in functions, list support |
| allowing Pytonic access and manipulation of lazily evaluated DML elements, |
| multi return continuation, allowing continued execution past calls to |
| builtin functions.</li> |
| <li>GPU Backend: Various performance improvements and fixes, cuda code |
| refactor, cuda code generation [experimental].</li> |
| <li>Lineage Tracing and Reuse: Initial support for federated and GPU |
| backends, new hybrid lineage deduplication and reuse of compressed lineage |
| DAGs, lineage cache benefits estimator, improved cache eviction logic.</li> |
| <li>Usability: Better Log4j integration, debug flag to reduce error logging, |
| support for remote debugging.</li> |
| <li>Miscellaneous Improvements: Improved documentation, better testing, |
| streamlined release process.</li> |
| </ul> |
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