IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.
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Elastic Docs ›Kibana Guide [8.18] ›Release notes

Kibana 8.18.2

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A newer version is available. Check out the latest documentation.

Kibana 8.18.2

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The 8.18.2 release includes the following known issues and fixes.

Known issues

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PDF and PNG reports time out and fail with an invalid header error if server.protocol is set to http2

Details
If you’ve changed the server.protocol value to http2, PDF and PNG reports will fail when you export them from the dashboard, visualization, or Canvas workpad that you’re generating a report for.

Workaround
To temporarily resolve the issue, set server.protocol to http1.

Resolved
This issue is resolved in 8.17.9, 8.18.4, 8.19.0 and later.

Errors in rule executions occur when maintenance windows have filters.

Details
Errors occur when rules run during an active maintenance window that has filters and a matching rule category.

Workaround
Remove any filters added to the active maintenance window.

Resolved
This issue is resolved in 8.18.3.

Observability AI assistant gets stuck in a loop when attempting to call the execute_connector function.

Details
The Observability AI assistant gets stuck in a loop when calling the execute_connector function. Instead of completing queries, it times out with the error message Failed to parse function call arguments when converting messages for inference: SyntaxError: Unexpected non-whitespace character after JSON at position 72 and Error: Tool call arguments for execute_connector (...) were invalid.

Observability AI Assistant - Elastic Managed LLM may be automatically selected as default connector

Details
The Elastic Managed LLM may be automatically selected as your default connector because of existing connector selection logic. This can occur if you had not previously specified a connector for any of the following reasons:

  • You only had one connector available and it was always automatically picked for your conversations.
  • You had multiple connectors available but didn’t make a specific selection and used the automatically picked connector for your conversations.
  • You previously selected a connector but cleared your browser’s local storage or switched browsers or devices.

And:

  • All of your existing connector names come after the “Elastic Managed LLM connector" when sorted alphabetically.

For more information, check #2088

Upgrading Kibana from 8.x to 8.18.2 fails due to a configuration conflict in the kibana.yml file.

This issue is resolved in version 8.18.3 (#222263).

Details
Upgrading Kibana from version 8.x to 8.18.2 fails due to a configuration conflict if xpack.alerting.cancelAlertsOnRuleTimeout is set to false in the kibana.yml file. Kibana fails to boot and shows a fatal error message in the Kibana logs that’s similar to the following:

FATAL Error: Rule type "transform_health" cannot have both cancelAlertsOnRuleTimeout set to false and autoRecoverAlerts set to true.

This failure occurs when the xpack.alerting.cancelAlertsOnRuleTimeout setting is set to false, which is incompatible with the default configuration of an internal setting (autoRecoverAlerts) in 8.18.2.

Workaround
To temporarily resolve the issue and allow the upgrade to proceed, follow these steps:

  1. Remove the xpack.alerting.cancelAlertsOnRuleTimeout: false setting from the kibana.yml file.
  2. Restart Kibana to apply the changes.

Fixes

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Dashboards and Visualizations
  • Fixes success message and auto-scroll behavior after adding a panel to a dashboard from the library (#220122).
  • Allows ES|QL queries to suggest a chart even when there is no data returned from a query. (#218085).
Elastic Observability Solution
  • Updates SLO created in a previous version to handle createdBy and updatedBy fields in an ingest pipeline (#221158).
  • Fixes errors in error_marker.tsx to support Mobile Services (#220424).
Elastic Security solution
For the Elastic Security 8.18.2 release information, refer to Elastic Security Solution Release Notes.
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