v3.11.0

aws-samples/bedrock-chatv3.11.0Oct 15, 2025by github-actions[bot]

AI Summary

Major refactoring of the chat core functionality to use the Strands SDK with security fixes.

Key Highlights

Refactored chat system to use Strands SDK for improved extensibility and maintainability
Fixed auto tag release security vulnerability using random delimiters
Fixed screen reset bug where generated output briefly disappeared

New Features

Refactored chat system to Strands SDK

Full Release Notes

## IMPORTANT UPDATE

Bedrock Chat has refactored the chat core functionality to [strands](https://github.com/strands-agents/sdk-python) with the aim of improving future extensibility and maintainability. We have conducted comprehensive testing of all features, but if you encounter any issues such as existing functionality not working properly, you can switch back to the previous implementation by applying the following configuration to [websocket.ts](https://github.com/aws-samples/bedrock-chat/blob/v3/cdk/lib/constructs/websocket.ts#L131):

```
USE_STRANDS: "false"
```

## Bug Fixes
- Fixed screen reset bug where generated output briefly disappeared after completion by @mludvig (#946)
- Fixed auto tag release security vulnerability by using random delimiters to prevent injection attacks by @statefb (#947)

## Enhancements
- Refactored chat system to use Strands SDK by @Yukinobu-Mine (#902)
- Updated AI model from Sonnet 3.7 to Sonnet 4 for auto-tag-release functionality by @statefb (#949)