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Apache Wayang (incubating) 0.7.1
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This is a patch/bugfix release of Apache Wayang (incubating).

This release supports the following frameworks:
- This patch version fixes a problem in the artifact gpg encrypting key.

Previous updates that are included in this release:
- Apache Flink v1.7.1
- Apache Giraph v1.2.0-hadoop2
- GraphChi v0.2.2 (only available with scala 11.x)
- Java Streams (version depends on the java version)
- JDBC-Template
- Postgres v9.4.1208 (Implementation JDBC-Template)
- Apache Spark v3.1.2 (scala 12.x) and v2.4.8 (scala 11.x)
- SQLite3 v3.8.11.2 (implementation JDBC-Template)

NOTE: depending on the scala version the list of the supported platforms available
could be different.


New Features
------------
[WAYANG-34] Terasort
[WAYANG-IDE] Recognition of Scala code in IDE
[WAYANG-8] Inclusion of Python as platform of processing
[WAYANG-211] JVM-platform inside of Python-API
Grep Benchmark
Test classes and operators for Flink
Support for S3 files locations
Initial version of the SQL API and suppport for joins


Incompatible changes
--------------------
Removing [WAYANG-273] - WebUI Draft from release

Miscellaneous changes
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Updates in documentation files:
    - README.md
    - NOTICE
    - DISCLAIMER.md
    - Usage instructions
    - Add EPL and PD license

CI updates:
    - Protoc
    - Skywalking-eyes check
    - Deadlink check
    - CodeQl Check
    - UT check
    - Auto Build And Install
    - Create Issues from the TODO in the code
    - Removed Travis, added Apache Calcite

Update maven-wrapper to 3.1.0, maven to 3.8.4 for performance improvements
Update .dlc.json
Updates for monitoring the runtime metrics of underlying platform (Spark)
[WAYANG-47] Properties Spark 2.11 updated with Spark version


Known Issues
------------
Wayang Doc tests need further improvements.

Bug Fixes
---------
Delete paranamer-2.3 from dependecies (PR#76)
Code scanning alert (PR#80)
Correction in DistinctOperator for Apache Flink (PR#226)
Fix of broken links
Fix on WayangJoinVisitor
Concat strings vulnerability
[WAYANG-assembly] correction in the folder structure (PR#259)
[WAYANG-48] Fix errors when running WordCount


New Contributors
---------

* @chrisdutz made their first contribution in https://github.com/apache/incubator-wayang/pull/1
* @2pk03 made their first contribution in https://github.com/apache/incubator-wayang/pull/8
* @ggevay made their first contribution in https://github.com/apache/incubator-wayang/pull/27
* @CalvinKirs made their first contribution in https://github.com/apache/incubator-wayang/pull/44
* @hboutemy made their first contribution in https://github.com/apache/incubator-wayang/pull/77
* @regaleo605 made their first contribution in https://github.com/apache/incubator-wayang/pull/78
* @zkaoudi made their first contribution in https://github.com/apache/incubator-wayang/pull/230
* @JorgeQuiane made their first contribution in https://github.com/apache/incubator-wayang/pull/231
* @kbeedkar made their first contribution in https://github.com/apache/incubator-wayang/pull/284
* @bgeng777 made their first contribution in https://github.com/apache/incubator-wayang/pull/301
* @damik3 made their first contribution in https://github.com/apache/incubator-wayang/pull/304
* @kmoltke made their first contribution in https://github.com/apache/incubator-wayang/pull/309
* @michellesackmann made their first contribution in https://github.com/apache/incubator-wayang/pull/310
* @AdeelAslamUnimore made their first contribution in https://github.com/apache/incubator-wayang/pull/311
* @ichbinrich made their first contribution in https://github.com/apache/incubator-wayang/pull/315


