[Backport 2.12] Adds the release notes for Data Prepper 2.12.

release/release-notes/data-prepper.release-notes-2.12.0.md

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+## 2025-06-26 Version 2.12.0
+
+---
+
+### Breaking Changes
+
+
+### Features
+
+* OTel telemetry unified source ([#5596](https://github.com/opensearch-project/data-prepper/issues/5596))
+* Add SQS sink to Data Prepper ([#5634](https://github.com/opensearch-project/data-prepper/issues/5634))
+* KDS cross account stream ([#5687](https://github.com/opensearch-project/data-prepper/pull/5687))
+* Add otlp sink (for AWS X-Ray) ([#5663](https://github.com/opensearch-project/data-prepper/issues/5663))
+* Adds the Modulus operator to Data Prepper expressions ([#5685](https://github.com/opensearch-project/data-prepper/issues/5685))
+* Add API tokens as an Authc/z method for OpenSearch Sink ([#5549](https://github.com/opensearch-project/data-prepper/issues/5549))
+* Add support for convering keys to lowercase/uppercase in RenameKeyProcessor ([#5810](https://github.com/opensearch-project/data-prepper/pull/5810))
+* Add multi-line csv support ([#5784](https://github.com/opensearch-project/data-prepper/pull/5784))
+* Add auto conversion option to convert_type processor ([#5782](https://github.com/opensearch-project/data-prepper/pull/5782))
+* Add detect format processor ([#5774](https://github.com/opensearch-project/data-prepper/pull/5774))
+* Add `getEventType()` expression function ([#5686](https://github.com/opensearch-project/data-prepper/pull/5686))
+
+### Enhancements
+
+* Allow plugins to access the default pipeline role ([#4958](https://github.com/opensearch-project/data-prepper/issues/4958))
+* Allow disabling metrics ([#5431](https://github.com/opensearch-project/data-prepper/issues/5431))
+* Support enabling specific experimental plugins ([#5675](https://github.com/opensearch-project/data-prepper/issues/5675))
+* Make opensearch source scroll timeout configurable and increase default value ([#5679](https://github.com/opensearch-project/data-prepper/issues/5679))
+
+
+### Bug Fixes
+
+* [BUG] OpenTelemetry Spans are indexed using the span id causing collisions ([#5370](https://github.com/opensearch-project/data-prepper/issues/5370))
+* [BUG] _default route no longer seems to exist in 2.11.0 ([#5763](https://github.com/opensearch-project/data-prepper/issues/5763))
+* Fix kafka source with glue registry ([#5765](https://github.com/opensearch-project/data-prepper/pull/5765))
+
+### Security
+
+* protobuf-3.19.5-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl: 1 vulnerabilities (highest severity is: 7.5) ([#5802](https://github.com/opensearch-project/data-prepper/issues/5802))
+* urllib3-2.2.2-py3-none-any.whl: 2 vulnerabilities (highest severity is: 5.3) ([#5801](https://github.com/opensearch-project/data-prepper/issues/5801))
+* protobuf-3.20.3-cp39-cp39-manylinux_2_5_x86_64.manylinux1_x86_64.whl: 1 vulnerabilities (highest severity is: 7.5) ([#5800](https://github.com/opensearch-project/data-prepper/issues/5800))
+* urllib3-1.26.19-py2.py3-none-any.whl: 2 vulnerabilities (highest severity is: 5.3) ([#5799](https://github.com/opensearch-project/data-prepper/issues/5799))
+
+
+### Maintenance
+
+* Refactor maven downloading logic to be dynamic ([#5826](https://github.com/opensearch-project/data-prepper/pull/5826))