v2.4.1

New Feature

• Added dark theme support with color code and theme toggle functionality. #676 by @nagineko

v2.4.0

⚠️ IMPORTANT ⚠️
Please be aware that the URL will change with this version due to update of the CloudFront Distribution. While you may still be able to access the site through your browser's cache if already deployed, it is recommended to notify users of the new URL.

Bug Fixes

• Fix merge of existing knowledge base configuration when modifying bot #687 by @statefb
• Ignore file not exists error when deleting files in KB #663 by @konokenj

Enhancements

• Refactor CloudFront Distribution to replace deprecated CloudFrontWebDistribution #685 by @statefb
• Use npx for cdk command and remove bootstrap arguments #667 by @konokenj
• Enable cross-region inference for backend API #686 by @statefb

v2.3.4

Enhancements

• Updated Indonesian language translations #671 by @rizasaputra

Bug Fixes

• Added dead letter queue to API stack to limit retries and prevent unwanted mass usage of foundation model #660 by @suzuki-safie
• Fixed active_models validation causing 422 errors in bot sharing functionality #684 by @statefb, @elliotsegle

v2.3.3

Bug Fixes

• Fixed Bedrock knowledge base validation logic. #655 by @statefb

v2.3.2

New Features

• Support for Vietnamese language. #650 by @statefb
• Ability to use existing Knowledge Base or another chatbot knowledge base. #638 by @fsatsuki

Bug Fixes

• Fixed error when clicking on reference links by removing leading slash from S3 object key. #647 by @Yukinobu-Mine
• Fixed Nova model functionality by optimizing system prompts and parameters. #645 by @Yukinobu-Mine
• Fixed ValidationException due to empty guard content when Contextual Grounding threshold is above 0. #644 by @Yukinobu-Mine

v2.3.1

New Features

• Added Thai, Indonesian, and Malay language support to i18n. #628 by @statefb
• Added ability to control and limit LLM model selection through configuration for custom chatbots. #607 by @fsatsuki, @statefb

Enhancements

• Added detailed error message display on UI when stream response fails. #634 by @statefb

v2.3.0

New Features

• Support for Amazon Nova, a new high-performance multimodal LLM model offered by Amazon that can handle text, images, and videos across multiple languages. #623 by @fsatsuki

Bug Fixes

• Removed .text and .pptx from supported file formats in Knowledge base. #619 by @maemasam000

v2.2.1

Bug Fixes

• Fixed Lambda SnapStart compatibility issue in certain regions by making it optional through enableLambdaSnapStart configuration in cdk.json #618 by @Yukinobu-Mine

v2.2.0

New Features

• Support for 'Retrieved Context Citation' in agent chat. #589 by @Yukinobu-Mine
• Support for non-text content (image, pdf, etc) in agent chat. #589 by @Yukinobu-Mine
• Support for multi-turn tool use in agent chat. #589 by @Yukinobu-Mine
• Ability to display search results from the Knowledge Base even when agents are not enabled. #589 by @Yukinobu-Mine

Bug Fixes

• Fixed an issue where bot creation with web crawling failed when specifying sites with deep nested URLs. #614 by @fsatsuki

Enhancements

• Reduced the CloudWatch log retention period from indefinite to 3 months to optimize costs. #612 by @fsatsuki, @statefb
• Enabled Lambda SnapStart, improving cold start time from 4 seconds to under 2 seconds on average. #611 by @tmokmss

v2.1.3

New Features

• Add Web Crawler for Knowledge Bases. #600 by @fsatsuki
• Added Advanced Parsing features with support for Claude 3 Sonnet v1 and Haiku v1 models. #594 by @fsatsuki

Bug Fixes

• Fixed an issue where custom bot buttons could not be pressed on mobile devices. #593 by @fsatsuki
• Fixed public API access to work correctly without knowledge base. #601 by @iwasawamnb

Enhancements

• Updated Spanish language translations throughout the app for better accuracy and consistency. #595 by @diegoasp10
• Updated demo video and GIF to showcase v2 features and enabled models. #591 by @msalheb