# 3.15.1 Release Notes Squirro 3.15.1 was released on January 26, 2026. Learn more about the [Squirro Release Process](../squirro-release-process.md#getting-squirro-process). > **Note for administrators** > > This release introduces important changes that may require adjustments to your existing setup. [Learn more](#breaking) ## What’s New - **Technical preview** - OpenSearch, available as an alternative to Elasticsearch. That initial release is intended solely for testing and evaluation, and must not be used in production environments. - **Technical preview** - OpenAI Code Interpreter, for secure code execution in a sandboxed environment. That initial release is intended solely for testing and evaluation, and must not be used in production environments. ## Improvements ### AI - Skip the file upload tool when no files are attached to the conversation. - Refined retriever tool description to improve the precision and relevance of agent searches. - Include document metadata in event stream snippets for streaming chat responses. - New default large language model set to GPT-5.2 for enhanced performance, accuracy, and responsiveness. - Serialize `RequestTimeout` as Tuple as expected by the genai service API. - `langchain-classic` package for backward compatibility with legacy chains. - Error handling for invalid file objects with clear error messages. - Warning triggered when tools are defined but ignored in passthrough mode. - `agent_id` added to prompt schema. - `waitForImage` added to the `DynamicImage` component for automatic retry when an image fails to load. - Support for provider-specific extra arguments allowing advanced Bedrock configurations. - AWS credential configuration supporting multiple authentication methods (explicit credentials, AWS profiles, session tokens, and AWS credential chain). - Dual-mode chat history storage with database backend support. - Intelligent container caching with file deduplication and LRU eviction. - Lifecycle management added for artifacts (delete by project/conversation scope). - Database-backed conversation storage for GenAI service chat history. - `safety_identifier` introduced for OpenAI API calls to enable user-level tracking and abuse prevention. - Automatically generate concise titles (5-7 words) for new conversations, based on the first user question. - Conversation import/export endpoints for data migration. - Standalone migration script tools/devops/genai_migrate_redis_to_db.py. - AWS Bedrock support with two provider types, bedrock_converse using Converse API and bedrock_chat using InvokeModel API. - Audit logging for conversation operations using `structlog`. - Storage bucket configuration for GenAI artifacts with automatic setup. - Artifact persistence with multiple storage backends. - Artifact reference list in responses with download links and file sizes. - `preserve_filename` configuration flag for opt-in filename preservation in file uploads. - `/projects//arbitrary_prompt` endpoint added to GenAI proxy plugin for direct LLM prompt execution. - Async-first architecture with proper error handling and retry logic. - Converter module for translating between Redis and DB formats. - Added field validator to automatically truncate conversation titles to 512 characters. ### Search - Parse newly added editable chips and split them when needed. - Switch to `search_after` pagination in `ActivityInsightsSource`. - Extend query syntax with a multi-value (any of) match. - Support for Point-in-Time and `search_after`. - Enable NLP parsing and smart search for the search widget. - Add `pagination_mode` to the SquirroClient scan. ### Platform - Explicitly set a `none` string for a more visible project setting UI for the `reasoning_effort` parameter. - Layer visibility builder in the dashboard editor migrated to React. - Keep the split view open state while navigating between items in Item Detail. - New projects now include the Semantic Search pipeline workflow by default. The `Default Dashboard` has been replaced by the `Explore Dashboard`, which correctly displays project items and provides an updated interface. - Adjust the “Server Admin” terminology to “Workspace Admin” in Project Settings for instances with the Workspaces feature activated. - Auto-refresh functionality for the data sources page. Administrators can deactivate it via the `frontend.userapp.show-sources-auto-refresh` server configuration key. - Add a warning when the `preserve_filename` flag is set for the newsletter bucket. - XSS sanitization for the email editor. ## Bug Fixes - Dashboard query is highlighted in the item cards of the items widget. - User cannot select a facet with a numerical value from the item card. - Fix long loading in “from chunks” mode. - Ensure proper closing of scan context. - Editing the name of the collection, favorite, or search-results agent types does not update the agents dropdown. - `llm_timeout` not being parsed properly from project settings. - Reference search, document search and similar items query include dashboard query. - Missing tool calls in conversation history for agentic workflows with multiple iterations. - Paragraph citation in Chat not highlighted in the old reference format. - Timeline widget not showing header. - Date and time not displayed in the client timezone. - Fixed the `arbitrary_prompt` endpoint by adding LLM configuration from project settings. - Fixed quotes handling in the unanalyzed field search. - Pass the `itemsCollectionsCollection` property to the `ItemDetail` component in the Chat widget, for the collections context. - Lost text fragments in Dynamic UI components leading to incorrect highlighting of referenced text. - When semantic search results contain a small amount of items, the frontend fetches the first 2 pages and shows loading indefinitely. - Inline citations inside dynamic UI not opened in the item detail. - Dashboard time selection not included in the chat context. - Passthrough mode condition incorrectly handles the `CHAT_WITH_LLM` agent type. - Query not clearing when changing dashboard programmatically via external navigation, preventing a clean dashboard state transition. ## Miscellaneous - Upgraded LangChain libraries for improved performance and security. ## Known Issues - In specific scenarios, cross-lingual information retrieval for semantic search may deliver lower-than-expected quality (SQ-28171). ## Breaking Changes - Email templates that make external requests to populate the template using the `h.requests_get` utility are no longer supported. - `extended_plugin_options` was removed from the `DataSource` class. - LangChain v1 removes support for classic chains like LLMChain and Chain base classes. Custom code using these deprecated classes must update imports from `langchain.*` to `langchain_classic.*`. See the [langchain-classic migration guide](https://docs.langchain.com/oss/python/releases/langchain-v1#langchain-classic). ## Installation and Upgrade For new installations, find step-by-step instructions on the [Install and Manage Squirro with Ansible](../../install/ansible/index.md#ansible) page (recommended) and [Installing Squirro on Linux](../../install/linux.md#install-linux) pages. To upgrade an existing installation, see the [Upgrading Squirro](../../install/upgrade.md#install-upgrade) page.