v3.15.2

aws-samples/bedrock-chatv3.15.2Dec 12, 2025by github-actions[bot]

AI Summary

Feature-rich release adding Claude 4.5 Opus model support and Mermaid diagram rendering, along with major MCP protocol updates and security patches.

Key Highlights

Added Claude 4.5 Opus model support
Added Mermaid diagram rendering support
Fixed Claude 4.1 Opus temperature and top_p conflict error
Updated MCP from 1.12.2 to 1.23.0 with latest spec compliance
Multiple security updates for js-yaml and PrismJS

New Features

Claude 4.5 Opus model support
Mermaid diagram rendering support

Full Release Notes

## Features
- Added Claude 4.5 Opus model support by @suzuki-safie (#984)
- Added Mermaid diagram rendering support by @Yukinobu-Mine (#981)

## Bug Fixes
- Fixed Claude 4.1 Opus "temperature and top_p cannot both be specified" error by @suzuki-safie (#979)

## Enhancements
- Updated MCP (Model Context Protocol) from 1.12.2 to 1.23.0, bringing compliance with latest MCP spec 2025-11-25 including sampling with tools, task support, enhanced authentication, and improved security features by @app/dependabot (#985)
- Updated js-yaml to 3.14.2 in CDK dependencies to address prototype pollution security vulnerability by @app/dependabot (#977)
- Updated PrismJS and react-syntax-highlighter dependencies to latest versions for improved syntax highlighting security and functionality by @app/dependabot (#976)
- Updated js-yaml to 4.1.1 in frontend dependencies to fix prototype pollution security issue by @app/dependabot (#975)