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Open WebUI @open-webui
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wire 2026-07-24
stories 147
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$ the-wire · showcase

Open WebUI slashes per-request and per-model overhead

By RepoJournal · Filed · About Open WebUI

Classic298 silentoplayz
2 people shipped this
Classic298 @Classic298 4 cited silentoplayz @silentoplayz 1 cited

Open WebUI cut redundant work across ASGI middleware, ORM session calls, and model listing paths, with the largest win coming from caching static security headers entirely.

Open WebUI eliminated per-response recomputation in ASGI middleware [1]. SecurityHeadersMiddleware now computes its header list once at construction instead of on every response, and skips wrapping send entirely when no security env vars are set. RedirectMiddleware no longer decodes and parse_qs's every GET query string, only those it acts on. The combined effect removes 14 os.environ.get lookups plus regex validation per response, in addition to the query parsing overhead on all GET requests.

A second performance thread targets the model layer [2]. Both session factories run with expire_on_commit=False, so fifty session.refresh calls after commit were issuing re-SELECTs of chat JSON blobs and user settings that the session already held, purely to overwrite identical data. Those calls are dropped across nearly every write path. Related work in model list assembly [3] removes per-model costs from get_all_models: active action and filter id sets now come from a column-only query instead of loading full function rows with plugin source, and tools deferral was fixed so tools listings actually omit the content column instead of loading full Python source [4]. Five caller sites pass defer_content=True expecting this optimization, and the new query selects every column except content.

A separate chore removes the unused ArchivedChatsModal component [5], which is a small cleanup with no user-facing effect.

$ ls open-webui/reviews/ # the step-back reads

the week in review Open WebUI 0.11.2 ships as nine security advisories land the month in review Open WebUI 0.11.1 adds tool approval, 0.11.2 fixes
Topics: Local LLMs AI / ML Full archive →

Quick answers

What shipped in Open WebUI on July 24, 2026?
Open WebUI cut redundant work across ASGI middleware, ORM session calls, and model listing paths, with the largest win coming from caching static security headers entirely. In total, 100 commits and 47 pull requests landed.
Who contributed to Open WebUI on July 24, 2026?
2 developers shipped this update, including Classic298 and silentoplayz.
What were the notable Open WebUI updates?
perf: stop recomputing static work in per-response ASGI middlewares (#27229), perf: drop redundant session.refresh calls after commit across the model layer (#27381), and perf: cut repeated per-model work out of model list assembly.
♥

$ log @open-webui --recent

Open WebUI ships five security fixes for auth and request handling 8 shipped Four breaking security advisories expose data and enable account takeover in Open WebUI 17 shipped Open WebUI 0.11.2 ships with tool parsing fix 90 shipped Fixes Redis Cluster stop, German catalog drift 8 shipped

$ log --all # elsewhere on the wire

@golang Fast-path receive buffer cleared on stream reset Meta React Native adds Stable API guards to renderer attributed string

$ ls showcases/

Rails Django Laravel Node.js Go Vercel Vue.js Kubernetes HashiCorp Arch Linux Linux Anthropic

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