I have searched for all existing open AND closed issues and discussions for similar requests. I have found none that is comparable to my request.
Verify Feature Scope
I have read through and understood the scope definition for feature requests in the Issues section. I believe my feature request meets the definition and belongs in the Issues section instead of the Discussions.
Problem Description
Hi team,
I’m using Open WebUI with the Knowledge / Document feature. I have a use case where users attach different knowledge sources during the same conversation.
Problem
When a user attaches a new document or knowledge source in an existing chat, the previously attached knowledge still remains in the context. I want the new knowledge to replace the previous one, not merge with it.
Currently:
Knowledge attached earlier continues to influence responses
There is no clear way to fully remove previous knowledge from the same chat
Even after attaching a new document, responses sometimes include information from older knowledge
Questions
Is there a supported way to clear or replace knowledge within the same chat?
If not, is this feature planned?
What is the recommended workflow for switching knowledge dynamically?
Use Case
I’m building a chatbot where users upload different documents (one at a time). Each new upload should be treated independently without requiring a new chat.
Desired Solution you'd like
Expected behavior
One of the following options would solve the issue:
Ability to remove previously attached knowledge from the current chat session
An option like “Replace existing knowledge” when attaching new documents
A way to reset RAG context without starting a new chat
API or configuration to clear conversation-level document context
Alternatives Considered
No response
Additional Context
No response
Originally created by @intelligenceabhii on GitHub (Feb 23, 2026).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/21762
### Check Existing Issues
- [x] I have searched for all existing **open AND closed** issues and discussions for similar requests. I have found none that is comparable to my request.
### Verify Feature Scope
- [x] I have read through and understood the scope definition for feature requests in the Issues section. I believe my feature request meets the definition and belongs in the Issues section instead of the Discussions.
### Problem Description
Hi team,
I’m using Open WebUI with the Knowledge / Document feature. I have a use case where users attach different knowledge sources during the same conversation.
Problem
When a user attaches a new document or knowledge source in an existing chat, the previously attached knowledge still remains in the context. I want the new knowledge to replace the previous one, not merge with it.
Currently:
Knowledge attached earlier continues to influence responses
There is no clear way to fully remove previous knowledge from the same chat
Even after attaching a new document, responses sometimes include information from older knowledge
Questions
Is there a supported way to clear or replace knowledge within the same chat?
If not, is this feature planned?
What is the recommended workflow for switching knowledge dynamically?
Use Case
I’m building a chatbot where users upload different documents (one at a time). Each new upload should be treated independently without requiring a new chat.
### Desired Solution you'd like
Expected behavior
One of the following options would solve the issue:
Ability to remove previously attached knowledge from the current chat session
An option like “Replace existing knowledge” when attaching new documents
A way to reset RAG context without starting a new chat
API or configuration to clear conversation-level document context
### Alternatives Considered
_No response_
### Additional Context
_No response_
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Originally created by @intelligenceabhii on GitHub (Feb 23, 2026).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/21762
Check Existing Issues
Verify Feature Scope
Problem Description
Hi team,
I’m using Open WebUI with the Knowledge / Document feature. I have a use case where users attach different knowledge sources during the same conversation.
Problem
When a user attaches a new document or knowledge source in an existing chat, the previously attached knowledge still remains in the context. I want the new knowledge to replace the previous one, not merge with it.
Currently:
Knowledge attached earlier continues to influence responses
There is no clear way to fully remove previous knowledge from the same chat
Even after attaching a new document, responses sometimes include information from older knowledge
Questions
Is there a supported way to clear or replace knowledge within the same chat?
If not, is this feature planned?
What is the recommended workflow for switching knowledge dynamically?
Use Case
I’m building a chatbot where users upload different documents (one at a time). Each new upload should be treated independently without requiring a new chat.
Desired Solution you'd like
Expected behavior
One of the following options would solve the issue:
Ability to remove previously attached knowledge from the current chat session
An option like “Replace existing knowledge” when attaching new documents
A way to reset RAG context without starting a new chat
API or configuration to clear conversation-level document context
Alternatives Considered
No response
Additional Context
No response