Release notes for Data Prepper 2.14.0. (opensearch-project#6571)

Signed-off-by: David Venable <dlv@amazon.com>

Author: dlvenable

release/release-notes/data-prepper.release-notes-2.14.0.md

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+## 2026-02-25 Version 2.14.0
+
+---
+
+### Breaking Changes
+
+* Report `sinkRequestLatency` and `sqsSinkRequestLatency` metrics with time units. If you were previously using the scale of these metrics is now different. ([#6513](https://github.com/opensearch-project/data-prepper/pull/6513), [#6510](https://github.com/opensearch-project/data-prepper/pull/6510))
+
+
+### Features
+
+* Add `otel_apm_service_map` for application performance monitoring service map along with deriving remote service and operation ([#6482](https://github.com/opensearch-project/data-prepper/issues/6482), ([#6539](https://github.com/opensearch-project/data-prepper/pull/6539))
+* Streaming Lambda response support in the Data Prepper Lambda processor ([#5973](https://github.com/opensearch-project/data-prepper/issues/5973))
+
+### Enhancements
+
+* Support for ARM architectures ([#640](https://github.com/opensearch-project/data-prepper/issues/640))
+* Enable cross-region writes in the S3 sink. ([#6323](https://github.com/opensearch-project/data-prepper/pull/6323))
+* Support files larger than 2GB in S3/SQS ([#5276](https://github.com/opensearch-project/data-prepper/issues/5276))
+* RDS source now handles MySql decimal data types when precision value is 19 or higher ([#6339](https://github.com/opensearch-project/data-prepper/issues/6339))
+* Make CloudWatchLogs sink retry indefinitely for retryable errors when no DLQ configured ([#6300](https://github.com/opensearch-project/data-prepper/issues/6300))
+* Reduce the Data Prepper tar.gz and Docker image sizes ([#3356](https://github.com/opensearch-project/data-prepper/issues/3356))
+* Improve Logging for OpenSearch Source when there are no matching indices. ([#6341](https://github.com/opensearch-project/data-prepper/issues/6341))
+* Make shutdown timeout configurable to prevent message loss during scale-down ([#6442](https://github.com/opensearch-project/data-prepper/issues/6442))
+* Support compressed files in `file` source ([#5245](https://github.com/opensearch-project/data-prepper/issues/5245))
+
+
+### Bug Fixes
+
+* Flush remaining data to S3 during shutdown ([#6424](https://github.com/opensearch-project/data-prepper/pull/6424))
+* Remove usage of buffer accumulator from Kafka custom consumer ([#6357](https://github.com/opensearch-project/data-prepper/pull/6357))
+
+### Security
+
+* protobuf-4.25.8-cp37-abi3-manylinux2014_x86_64.whl: 1 vulnerabilities (highest severity is: 8.6) ([#6441](https://github.com/opensearch-project/data-prepper/issues/6441))
+* urllib3-2.5.0-py3-none-any.whl: 2 vulnerabilities (highest severity is: 7.5) - autoclosed ([#6344](https://github.com/opensearch-project/data-prepper/issues/6344))
+* werkzeug-3.0.6-py3-none-any.whl: 2 vulnerabilities (highest severity is: 5.3) ([#6326](https://github.com/opensearch-project/data-prepper/issues/6326))
+
+
+### Maintenance
+
+* OpenSearch 3 Verification ([#6485](https://github.com/opensearch-project/data-prepper/issues/6485))
+* Use a different Gradle plugin for Docker ([#5313](https://github.com/opensearch-project/data-prepper/issues/5313))
+