# 3.11.5 Release Notes Squirro 3.11.5 was released on November 25, 2024. Learn more about the [Squirro Release Process](../../squirro-release-process.md#getting-squirro-process). ## What’s New - Overlap option to the Text Chunking pipeline step, allowing context preservation when paragraph splits occur. - GET /ingester/backlog/stats endpoint for frontend service web API. - Rescore parameters for the semantic search plugin to add a rescore query triggered after retrieval. ## Improvements - Semantic search increased performance with approximate KNN support for pre- or post-filtering profile:{ semantic knn_filter_stage:post }. - Sorting paragraph index by _parent_item_id_ for more efficient semantic search (exact_knn) on parent-item scope (chat-with-item). - Source match detection path for the search only triggered when queries are tagged as a question or statement. - More detailed error messages for the JSON dataloader. - Various enhancements for the paragraph-expansion-retriever squirro/tools/paragraph_expansion_retriever, including support for the chat with selection re-using the query-context as returned from query-processing (via global-searchbar). - The project create dialog and selector migrated to React. - Rerunning from index support for including entities in the rerun data set by default and controlled by the project-level setting datasource.rerun.index.include-entities. - Dashboard navigation tabs migrated to React. - Added Llama and Gemini to the context length guessing function. - Rerunning from index now supports the batch priority for the rerun data, by default with normal priority. - List option tooltip for the Filter widgets only appears when content overflows. ## Bug Fixes - Squirro Retriever fails to correctly handle the rewritten query coming from query-processing triggered via Global Search. - Assistant settings not being saved correctly. - _ActionWidget_ buttons show escaped labels. - Context length incorrectly parsed for the Llama and Gemini models. ## Miscellaneous - Maximum number of retries for an item in a pipeline workflow reduced from 10 to 3. - Default Elasticsearch highlighter type switched to unified from plain to ensure support of knn-query and post-filtering with Elastic 8.16. - Elasticsearch upgraded to version 8.16.0. ## Known issue LLMs hosted by Google AI may sometimes bypass the tool calling step, causing agent workflows issues (SQ-25865). ## 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.