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wire 2026-08-20
stories 34
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Open WebUI cuts chat saves to one transaction

By RepoJournal · Filed · About Open WebUI

Classic298
1 person shipped this
Classic298 @Classic298 5 cited

Saving a chat now writes all its messages in a single transaction, ending per-message session churn on every save.

Saving a chat in Open WebUI used to rewrite each message row with its own session and commit, so a two hundred message chat cost two hundred sessions and two hundred commits on every save. The messages now go through a single select and a single commit. This is a pure performance change; behavior and API are unchanged. [1]

Two more hot paths got the same treatment. Assembling builtin tools no longer re-reads the whole chat blob to check whether a chat is a note, since the caller had already loaded that row with the same predicate [2]. Model-attached file access checks now run the query in reverse, asking the database for models carrying the file id instead of scanning every accessible model's knowledge list in Python; a folder of twenty files no longer rebuilds the accessible-model set twenty times [3].

One fix changes behavior: a chat attached via the "+" menu or dropped from the sidebar references an existing chat by id and carries no url, so it was dropped from <attached_files> and the model never learned it existed. With the RAG file-context path disabled, that was entirely invisible; the reference is now surfaced in <attached_files>. The same commit also removes three unused KnowledgeTable accessors, one of which could only raise since it wrote a data column dropped by an earlier migration. [4][5]

$ 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 August 20, 2026?
Saving a chat now writes all its messages in a single transaction, ending per-message session churn on every save. In total, 19 commits and 15 pull requests landed.
Who contributed to Open WebUI on August 20, 2026?
1 developer shipped this update, including Classic298.
What were the notable Open WebUI updates?
perf: write a chat's messages in one transaction instead of one per message (#28806), perf: reuse the already loaded chat when assembling builtin tools (#28809), and perf: resolve model-attached file access with a targeted query (#28802).
♥

$ 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

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