v3.15.6

HyNetworks/hysteriav3.15.6Apr 8, 2026by github-actions[bot]

AI Summary

A maintenance update that standardizes the Node.js environment to version 22 and applies security patches to backend components while resolving UI glitches and build conflicts.

Key Highlights

Unified Node.js version to 22 and removed EOL Node 18/20 support.
Updated cryptography and AWS SDK dependencies for security improvements.
Fixed build failures by regenerating package-lock.json to resolve xstate conflicts.
Fixed extra escaping character appearing in code samples and UI chat visibility bugs.

Full Release Notes

## Enhancements
- Unified Node.js version to 22 across all components and removed EOL Node 18/20 support by @statefb (#1019)
- Updated fast-xml-parser to 5.3.9 and aws-amplify to 6.16.2 in frontend dependencies by @app/dependabot (#1020)
- Updated fast-xml-parser to 5.3.4 and @aws-sdk/client-s3 to 3.987.0 in knowledge-base-custom-transformation lambda by @app/dependabot (#1012)
- Updated fast-xml-parser to 5.3.6 and @aws-sdk/xml-builder to 3.972.5 in knowledge-base-custom-transformation lambda by @app/dependabot (#1015)
- Updated cryptography from 46.0.3 to 46.0.5 in backend for security improvements by @app/dependabot (#1011)
- Updated python-multipart from 0.0.20 to 0.0.22 in backend by @app/dependabot (#1004)

## Bug Fixes
- Fixed build failures by regenerating package-lock.json to resolve xstate v4/v5 dependency conflicts by @statefb (#1052)
- Fixed extra escaping character '\' appearing in code samples by @DLM-unipd (#1009)
- Fixed recent chat remaining visible after deletion by @DLM-unipd (#1008)

## Documentation
- Improved Italian translation accuracy and completeness by @DLM-unipd (#1010)