v0.26.4
## Summary Released on July 7, 2026. ### New features - NLP/Tokenization: Adds a language-aware Snowball stemmer supporting 16 languages, integrates the dataset `language` parameter across the tokenization pipeline, and adds Dutch to the frontend. [#14140](https://github.com/infiniflow/ragflow/pull/14140) ### Bug fixes - The system crashed with a `ValueError` when parsing LM-Studio model names containing an '@' symbol. [#16467](https://github.com/infiniflow/ragflow/pull/16467) - The MCP server crashed because the list_chats function expected a list from the `/chats` API but received a paginated dictionary instead. [#16639](https://github.com/infiniflow/ragflow/pull/16639) - The Docling parser silently dropped mathematical formulas from documents instead of extracting them. [#16645](https://github.com/infiniflow/ragflow/pull/16645) - The system failed to persist inline edits made to metadata values to the backend. [#16655](https://github.com/infiniflow/ragflow/pull/16655) - The system removed existing links when bulk-linking files to datasets. [#16587](https://github.com/infiniflow/ragflow/pull/16587) - The filter failed to use Chinese. [#16673](https://github.com/infiniflow/ragflow/pull/16673) - The system failed to enforce that tag weights must be greater than zero. [#16657](https://github.com/infiniflow/ragflow/pull/16657) - The layout of the agent prompt dropdown menu rendered incorrectly. [#16653](https://github.com/infiniflow/ragflow/pull/16653) - The Laws chunker incorrectly classified dotted-number cross-references as headings. [#16626](https://github.com/infiniflow/ragflow/pull/16626) - The system failed to prevent users from saving duplicate MCP server names during the editing process. [#16588](https://github.com/infiniflow/ragflow/pull/16588) - The system allowed users to export an empty MCP server selection. [#16589](https://github.com/infiniflow/ragflow/pull/16589) ## What's Changed * Go: unify three services into one binary by @JinHai-CN in https://github.com/infiniflow/ragflow/pull/16462 * Feat: Add knowledge compilation workflows by @KevinHuSh in https://github.com/infiniflow/ragflow/pull/16515 * Go: file syncer service framework by @JinHai-CN in https://github.com/infiniflow/ragflow/pull/16579 * fix(agent/tools): port AkShare to ToolBase so it works as an Agent tool by @immuhammadfurqan in https://github.com/infiniflow/ragflow/pull/16417 * fix: prevent duplicate 'skills' and '.knowledgebase' folders caused by race conditions by @euvre in https://github.com/infiniflow/ragflow/pull/16568 * Fix harness DAG slow-branch test cased by nil initialization of pregel engine by @yingfeng in https://github.com/infiniflow/ragflow/pull/16591 * Refactor: reformat all code for lefthook using ruff and gofmt by @wangq8 in https://github.com/infiniflow/ragflow/pull/16585 * fix: preserve existing links when bulk linking files to knowledge bases by @euvre in https://github.com/infiniflow/ragflow/pull/16587 * fix: agent chat completions can not use by