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wire 2026-05-09
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Open WebUI fixes MCP cleanup cancel-scope crash and expands language support

By RepoJournal · Filed · About Open WebUI

Classic298 VincentDev007 looselyhuman aleixdorca ShirasawaSama
5 people shipped this
Classic298 @Classic298 1 cited VincentDev007 @VincentDev007 1 cited looselyhuman @looselyhuman 1 cited aleixdorca @aleixdorca 1 cited ShirasawaSama @ShirasawaSama 1 cited

A fix removes asyncio.wait_for/shield from MCP cleanup in the chat handler, preventing a BaseException crash on anyio cancel-scope violations.

The MCP cleanup fix in the chat handler addresses a crash caused by asyncio.wait_for() and asyncio.shield(). [1] These functions create new tasks that violate anyio cancel-scope ownership rules, and exiting the MCPClient exit_stack from a different task triggers 'Attempted to exit a cancel scope that isn't the current task's current cancel scope' as a BaseException. Removing them resolves the crash; no migration is needed, but testing chat with MCP is recommended.

Open WebUI expands i18n coverage with a new Tagalog (Filipino) translation [2] and updates to Catalan [3] and Chinese [4]. These are additive; existing locale files are unchanged. The Chinese improvements and Catalan update refine wording for accuracy.

The SECURITY.md file was updated, likely reflecting revised disclosure or support policies. [5] No security incident is disclosed in the change; review the updated file to know any process changes.

Topics: Local LLMs AI / ML Full archive →

Quick answers

What shipped in Open WebUI on May 9, 2026?
A fix removes asyncio.wait_for/shield from MCP cleanup in the chat handler, preventing a BaseException crash on anyio cancel-scope violations. In total, 87 commits and 18 pull requests landed.
Who contributed to Open WebUI on May 9, 2026?
5 developers shipped this update, including Classic298, VincentDev007, looselyhuman, aleixdorca, and ShirasawaSama.
What were the notable Open WebUI updates?
fix(mcp): remove asyncio.wait_for/shield from MCP cleanup in chat handler (#24105), i18n: Add Tagalog (Filipino) translation, and i18n: Update Catalan translation.json.
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$ log @open-webui --recent

Open WebUI Desktop fixes blank Linux webviews, decouples local server 11 shipped Desktop patches Python bootstrap, GPU rendering, and model discovery 12 shipped Open WebUI desktop fixes external link handling 9 shipped

$ log --all # elsewhere on the wire

Meta React Native adds Stable API guards to renderer attributed string FastAPI & Pydantic Pydantic fixes Mypy plugin crash, tightens datetime constraints

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