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+## 2023-08-23 Version 2.4.0
+
+---
+
+### Features
+* Support Kafka as source. ([#254](https://github.com/opensearch-project/data-prepper/issues/254))
+* Support source coordination. ([#2412](https://github.com/opensearch-project/data-prepper/issues/2412))
+* Support S3 scan capability in S3 source. ([#1970](https://github.com/opensearch-project/data-prepper/issues/1970))
+* Support ElasticSearch 6.8 in OpenSearch sink. ([#3003](https://github.com/opensearch-project/data-prepper/issues/3003))
+* Support custom index template in OpenSearch sink with ElasticSearch 6.8. ([#3060](https://github.com/opensearch-project/data-prepper/issues/3060))
+* Support filtering data in sink using include_keys and exclude_keys. ([#2975](https://github.com/opensearch-project/data-prepper/issues/2975))
+
+### Enhancements
+* Support generic sink codec structure for sinks. ([#2403](https://github.com/opensearch-project/data-prepper/issues/2403))
+* Support expressions in OpenSearch index and document ID. ([#2864](https://github.com/opensearch-project/data-prepper/issues/2864))
+* Support defining bucket ownership. ([#2012](https://github.com/opensearch-project/data-prepper/issues/2012))
+* Add exemplars to metrics generated in aggregate processor. ([#3164](https://github.com/opensearch-project/data-prepper/issues/3164))
+* Add cardinality key support in Anomaly detector processor using identification_keys. ([#3073](https://github.com/opensearch-project/data-prepper/issues/3073))
+* Support allow_duplicate_values in key-value processor. ([#889](https://github.com/opensearch-project/data-prepper/issues/889))
+* Support remove_brackets in key-value processor. ([#892](https://github.com/opensearch-project/data-prepper/issues/892))
+* Support exclude_keys in key-value processor. ([#890](https://github.com/opensearch-project/data-prepper/issues/890))
+* Support default_keys in key-value processor. ([#891](https://github.com/opensearch-project/data-prepper/issues/891))
+* Add GZip compression in S3 sink. ([#3130](https://github.com/opensearch-project/data-prepper/issues/3130))
+* Add Snappy compression in S3 sink. ([#3154](https://github.com/opensearch-project/data-prepper/issues/3154))
+* Update metric for ECF instance from counter to gauge and fix flaky tests caused by RCF variance. ([#3145](https://github.com/opensearch-project/data-prepper/issues/3145))
+* Support s3:// prefix in pipeline where s3 bucket names are used. ([#3143](https://github.com/opensearch-project/data-prepper/issues/3143))
+* Update circuit breaker configuration log message. ([#3175](https://github.com/opensearch-project/data-prepper/pull/3175))
+* Deprecate document_id_field in support of document_id. ([#3074](https://github.com/opensearch-project/data-prepper/pull/3074))
+
+### Bug Fixes
+* Fix race condition in sources using End-to-End Acknowledgments. ([#3038](https://github.com/opensearch-project/data-prepper/issues/3038))
+* Fix DLQ deserialization with create action. ([#3040](https://github.com/opensearch-project/data-prepper/issues/3040))
+* Fix IllegalArgumentException in csv processor when key does not exist. ([#3053](https://github.com/opensearch-project/data-prepper/issues/3053))
+* Handle RequestTimeoutException in push based sources correctly. ([#3063](https://github.com/opensearch-project/data-prepper/issues/3063))
+* Fix S3 sink writing to closed stream. ([#3160](https://github.com/opensearch-project/data-prepper/issues/3160))
+* Fix timestamp used in S3 sink to 24-hour format. ([#3171](https://github.com/opensearch-project/data-prepper/issues/3171))
+* Fix stale buffer data not being written to S3 sink. ([#3187](https://github.com/opensearch-project/data-prepper/pull/3187))
+* Fix IllegalArgumentException in convert entry processor. ([#3135](https://github.com/opensearch-project/data-prepper/issues/3135))
+* Fix ClassCastException in parse_json processor with OTel logs source. ([#3184](https://github.com/opensearch-project/data-prepper/issues/3184))
+* Fix UnexpectedTypeException in S3 select using NotBlank annotation. ([#3208](https://github.com/opensearch-project/data-prepper/pull/3208))
+
+### Maintenance
+* Update existing release workflow to trigger Data Prepper release jenkins job. ([#2122](https://github.com/opensearch-project/data-prepper/issues/2122))
+* Reduce test time which reduces build time. ([#3019](https://github.com/opensearch-project/data-prepper/pull/3019), [#3020](https://github.com/opensearch-project/data-prepper/pull/3020), [#3021](https://github.com/opensearch-project/data-prepper/pull/3021))
+* Updated GitHub actions to use Data Prepper in job titles. ([#3104](https://github.com/opensearch-project/data-prepper/pull/3104))
+* Add Apache commons-lang3 to gradle catalog. ([#3120](https://github.com/opensearch-project/data-prepper/pull/3120))
+* Add integration test coverage for ODFE 0.10.0 OpenSearch sink. ([#3131](https://github.com/opensearch-project/data-prepper/pull/3131))
+* Updated documentation process in developer guide. ([#2772](https://github.com/opensearch-project/data-prepper/pull/2772))
+* Fix flaky conditional routing test. ([#3139](https://github.com/opensearch-project/data-prepper/issues/3139))
+* Fix flaky unit tests. ([#3150](https://github.com/opensearch-project/data-prepper/pull/3150))
+* Add integration test for S3 sink. ([#3179](https://github.com/opensearch-project/data-prepper/pull/3179))
+* Update Data Prepper tar.gz to include JDK 17.0.8+7. ([#3136](https://github.com/opensearch-project/data-prepper/pull/3136))
+* Update S3 sink to speed up unit test time. ([#3203](https://github.com/opensearch-project/data-prepper/pull/3203))
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