AI-Starter 3.1.2
Last updated: July 21, 2026
AI-Starter 3.1.2 has been released. This update brings external service integration (MCP), support for Amazon Bedrock managed knowledge bases, support for the latest models, and a number of other improvements.
New Features
External Service Integration (MCP)
A new External Services screen in the admin console lets you register MCP servers (Streamable HTTP) that assistants can use, as well as OAuth authentication providers used for user-level integration. Linking an MCP server to an assistant lets it call tools provided by external services from chat, with support for allow/deny lists to restrict which tools are exposed. For details, see External Service Integration (MCP).
When an MCP server is linked to an OAuth authentication provider, users can connect their own account from a new External Service Integration page in personal settings (authorization code flow with PKCE). The same page also shows connection status and lets users disconnect. For details, see Account.
Amazon Bedrock Managed Knowledge Base Support
Bedrock Claude assistants can now use Amazon Bedrock's managed knowledge base as a built-in tool.
With a managed knowledge base, you can implement RAG using only a Bedrock knowledge base, without separately provisioning a search engine such as OpenSearch Serverless. It also supports multimodal search, including figures and tables in addition to text.
For details, see the following documentation.
https://docs.aws.amazon.com/bedrock/latest/userguide/kb-managed-create.html
New Model Support
The following latest models are now available. For a full list of supported models, see Models.
| Provider | Models |
|---|---|
| Amazon Bedrock | Claude Sonnet 5, Claude Opus 4.8, Claude Opus 4.8 Thinking |
| Amazon Bedrock (OpenAI models served via Bedrock) | Bedrock GPT-5.6 Sol, Bedrock GPT-5.6 Terra, Bedrock GPT-5.6 Terra Thinking, Bedrock GPT-5.6 Luna |
| OpenAI | GPT-5.6 Sol, GPT-5.6 Terra, GPT-5.6 Terra Thinking, GPT-5.6 Luna |
| Google Gemini | Gemini 3.5 Flash, Gemini 3.5 Flash Thinking, Gemini 3.1 Flash Lite (GA), Nano Banana 2, Nano Banana 2 Lite |
OpenAI models served through Bedrock (such as Bedrock GPT-5.6 Sol) handle data differently than other Bedrock models. Please review the notice in the assistant's description before enabling them.
Features Requiring an Infrastructure Update
Some features in this release are not available through the application update alone. To enable the following, a separate infrastructure update is required.
- External service integration (MCP)
- OpenAI models served via Bedrock (Bedrock GPT-5.6 Sol, Bedrock GPT-5.6 Terra, Bedrock GPT-5.6 Terra Thinking, Bedrock GPT-5.6 Luna)
For CloudFormation stack update procedures, see Update. Your account representative may provide templates or guidance for the update.
Improvements
Expanded Attachment Format Support for OpenAI Assistants
Directly-connected OpenAI assistants now support additional attachment formats, including docx, xlsx, json, xml, and txt.
Prompt Template Management Improvements
Improved the create/edit/delete experience on the prompt template management page in personal settings.
Sidebar State Persistence
The sidebar and history section now remember their open/collapsed state in local storage, so the display persists as you navigate between pages.
Changes & Deprecations
Model Replacements
The following models have been removed from the default assistants. Existing assistant configurations will continue to work for now, but they may stop working in a future update. We recommend migrating to the successor models when possible. For the current list of supported models, see Models.
| Deprecated Model | Migration Target |
|---|---|
| Claude Opus 4.7 | Claude Opus 4.8 |
| GPT-5.5 (OpenAI direct), GPT-5.5 with Code Interpreter, GPT-5.5 Thinking | GPT-5.6 Sol / Terra / Terra Thinking / Luna |
| Bedrock GPT-5.5 (Ohio), Bedrock GPT-5.5 Thinking (Ohio) | Bedrock GPT-5.6 Sol / Terra / Terra Thinking / Luna |
| GPT Instant (OpenAI direct) | GPT-5.6 Luna / GPT-5.6 Terra |
| Nova Micro, Nova Pro, Nova Premier | Nova 2 Lite / Nova 2 Lite with Web Search |
| Gemini 3 Flash Preview | Gemini 3.5 Flash / Gemini 3.5 Flash Thinking |
| Gemini 3.1 Pro Preview, Gemini 3.1 Pro Preview Thinking | Gemini 3.5 Flash / Gemini 3.1 Flash Lite |
| Gemini Flash Latest, Gemini Flash-Lite Latest (preview alias models) | Gemini 3.5 Flash / Gemini 3.1 Flash Lite |
| Gemini 2.5 Flash Image (formerly Nano Banana) | Nano Banana 2 / Nano Banana 2 Lite |
Removed the Legacy Bedrock Knowledge Base Integration (RetrieveAndGenerate)
The legacy method for connecting directly to a Bedrock knowledge base (the RetrieveAndGenerate API), which was marked for deprecation in 3.1.1, has been removed in this version. Assistants configured with this method (platform metadata type BedrockKnowledgeBase) will stop working after the update. Please migrate to the Bedrock Knowledge Base Retrieval grounding option, or to the new Bedrock managed knowledge base integration added in this release.
Cleaned Up Default Use-Case Assistants
Based on the latest updates, the following default use-case assistants have been removed from the default assistant list.
- Japanese translator (→日本語) / English translator (→英語)
- Daily report supporter (日報作成支援)
- Editor（文章校正）/ Typo checker (誤字脱字修正)
- Image Generation - Nova Canvas
- Bedrock Knowledge Base Retrieval / Bedrock Knowledge Base Retrieval and Generate
Closing
Thank you for reading. AI-Starter continues to evolve based on your feedback. If you have any questions or suggestions, please don't hesitate to let us know. Stay tuned for future updates!