> For the complete documentation index, see [llms.txt](https://docs.appmixer.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.appmixer.com/changelog/version-6/6/6.4/6.4.2.md). # 6.4.2 ## New Features * **Flow Image on Automation Hub Tiles** — Automation Hub tiles now render a flow image when available, replacing the default connector icon strip. Tiles without a flow image continue to display the icon strip as before. * **Sync Categories to Integration Templates on Save** — Categories assigned in an integration draft are now propagated directly to the linked integration template when clicking Save Changes, without requiring a full Publish Changes. ## Bug Fixes * Fixed log search queries using the `@timestamp` field which only exists in Elasticsearch+Logstash setups but not in OpenSearch+Vector setups. All log search queries, sort parameters, and aggregations now use `gridTimestamp` — the application-level timestamp present in both infrastructures. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.appmixer.com/changelog/version-6/6/6.4/6.4.2.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.