OpenSearch 1.2 support — VPC egress routing, GPU acceleration, and semantic highlighting

AI Impact Summary

Amazon OpenSearch Service has expanded its support to version 1.2, introducing several key enhancements including VPC egress routing, GPU acceleration for vector indexes, and semantic highlighting via CloudFormation templates. This update also includes support for Graviton4 instances and new features like cross-account ingestion pipelines and FIPS 140-2 compliance, alongside improvements to the OpenSearch UI and serverless capabilities. These additions broaden the service's utility for diverse workloads and security requirements.