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We've identified a bug in Fleet Server 9.5.3 (also present in 9.4.6) that can cause Elastic Agents to crash-loop and go offline when Fleet pushes a configuration update, including enrollment, a policy change, or a routine revision bump. This only affects policies that use Fleet's remote Elasticsearch output feature. Recommendation: If you use Fleet's remote Elasticsearch output, do not upgrade to 9.5.3 or 9.4.6 until a fixed version is available. If you're already on an affected version and experiencing agent check-in failures, contact Support for remediation steps. A fix has been merged and will ship in the next 9.5.x and 9.4.x releases. Known Issue documentation: fleet-server#7791, elastic-agent#16542.

We have patched Fleet Server versions 9.5.3 and 9.4.6 with corrected releases deployed as of September 10, 2026 at 21:20 UTC. - Upgrading to the current 9.4.6 or 9.5.3 releases will not be affected by this bug as the updated release contains the fix. - If you upgraded to 9.4.6 or 9.5.3 before 21:20 UTC on 10 September 2026, perform the following mitigation: 1. Force restart the Integration Server component of you affected deployment 2. Run cleanup procedures on affected Elastic Agents (see https://support.elastic.co/knowledge/bee1c75c) — required if agents failed to check in or remained offline after the Integration Server restart

We have patched Fleet Server versions 9.5.3 and 9.4.6 with corrected releases deployed as of September 10, 2026 at 21:20 UTC. - Upgrading to the current 9.4.6 or 9.5.3 releases will not be affected by this bug as the updated release contains the fix. - If you upgraded to 9.4.6 or 9.5.3 before 21:20 UTC on 10 September 2026, perform the following mitigation: 1. Force restart the Integration Server component of you affected deployment 2. Run cleanup procedures on affected Elastic Agents (see https://support.elastic.co/knowledge/bee1c75c) — required if agents failed to check in or remained offline after the Integration Server restart IMPORTANT: The patched Fleet Server is not available outside Elastic Cloud Enterprise (ECE) Stack Packs and Elastic Cloud Hosted (ECH).

We are aware of a bug affecting customers on Elasticsearch versions 9.5.0, 9.5.1 and 9.5.2 where bulk index operations processed on the primary shard can result in divergence on the replicas resulting in high disk usage and long-running recoveries. The team is working on a fix. More information can be found on https://www.elastic.co/docs/release-notes/elasticsearch/known-issues#elasticsearch-9.5.2-known-issues The next update will be in the next 2 hours or sooner if needed.

We have identified the root cause and the team is working on a fix scheduled to be released in Elasticsearch version 9.5.3 What you can do: - If you have not yet upgraded to 9.5.*, you are not affected as upgrades to 9.5 have been disabled until 9.5.3 is released - If you are already running 9.5 and experience the symptoms of this issue, please contact Elastic Support. More information can be found on https://www.elastic.co/docs/release-notes/elasticsearch/known-issues#elasticsearch-9.5.2-known-issues

The fix has been identified and backported to the Elasticsearch 9.5 patch branch. The teams are performing the needed validations before scheduling and rolling out the 9.5.3 release.

Elasticsearch 9.5.3 has been released and all Elastic Cloud and On-Premises customers currently running 9.5.0, 9.5.1 or 9.5.2 are advised to update to this new version as soon as possible.

Elasticsearch 9.5.3 has been released and all customers currently running 9.5.0, 9.5.1 or 9.5.2 are advised to update to this new version as soon as possible. Impacted customers are advised to follow the workaround steps from https://github.com/elastic/elasticsearch/issues/158212 after the upgrade.

We are aware of connectivity and power issues affecting AWS Bahrain (me-south-1) due to localized power issues. We are awaiting further updates from AWS and will update here once we have more information.

This incident remains ongoing. We continue to monitor the situation in AWS Bahrain (me-south-1) and are actively supporting all impacted customers through our support channels. As this incident has no ETA for mitigation, our status updates for this incident will be on a weekly basis, or sooner if there is a significant change in status. For any further assistance, please feel free to reach out to Elastic support by either opening a case in our Support portal (https://support.elastic.co) or by emailing [email protected].

This incident remains ongoing. We continue to monitor the situation in AWS Bahrain (me-south-1) and are actively supporting all impacted customers through our support channels. As this incident has no ETA for mitigation, our status updates for this incident will be on a weekly basis, or sooner if there is a significant change in status. For any further assistance, please feel free to reach out to Elastic support by either opening a case in our Support portal (https://support.elastic.co) or by emailing [email protected].

There are no new updates. This incident remains ongoing. We continue to monitor the situation in AWS Bahrain (me-south-1) and are actively supporting all impacted customers through our support channels. As this incident has no ETA for mitigation, our status updates for this incident will be on a weekly basis, or sooner if there is a significant change in status. For any further assistance, please feel free to reach out to Elastic support by either opening a case in our Support portal (https://support.elastic.co) or by emailing [email protected].

We have identified a further potential disruption to our services hosted in the AWS Bahrain (me-south-1) region. We are working to determine the scope of this impact, and have engaged with AWS as the providers in this investigation. Further updates will be posted within the hour, or when we have further information.

This incident remains ongoing. We continue to monitor the situation in AWS Bahrain (me-south-1) and are actively supporting all impacted customers through our support channels. As this incident has no ETA for mitigation, our status updates for this incident will be on a weekly basis, or sooner if there is a significant change in status. For any further assistance, please feel free to reach out to Elastic support by either opening a case in our Support portal (https://support.elastic.co) or by emailing [email protected].

As this incident remains ongoing with no recovery timeline provided by AWS, we have removed AWS Bahrain (me-south-1) from the available region selection on cloud.elastic.co. The region is currently unavailable for the creation of new deployments. Existing deployments in me-south-1 remain inaccessible due to the ongoing AWS connectivity disruption. Customers in this region should continue to work through Elastic support channels. For assistance, please open a case in our Support portal (https://support.elastic.co) or email [email protected].

Update — This incident remains ongoing. AWS Bahrain (me-south-1) has been removed from the available region selection on cloud.elastic.co and is unavailable for new deployments. Existing deployments in me-south-1 remain inaccessible due to the ongoing AWS infrastructure disruption. AWS has not provided a recovery timeline for the region. Customers should continue to assume the region is unavailable for the foreseeable future. We continue to support impacted customers individually through our support channels. If you have not yet done so, please open a case so we can assist with your recovery options. For assistance, please open a case in our Support portal (https://support.elastic.co) or email mailto:[email protected]. Apr 20, 2026 — 00:00 UTC

Update — Incident ongoing. AWS Bahrain (me-south-1) has been removed from new deployment selection on cloud.elastic.co. Existing deployments remain inaccessible due to the AWS infrastructure disruption, with no recovery timeline provided by AWS. Assume the region is unavailable for the foreseeable future. For assistance, please open a case in our Support portal (https://support.elastic.co) or email [email protected].

Update — Incident ongoing. AWS Bahrain (me-south-1) has been removed from new deployment selection on cloud.elastic.co. Existing deployments remain inaccessible due to the AWS infrastructure disruption, with no recovery timeline provided by AWS. Assume the region is unavailable for the foreseeable future. For assistance, please open a case in our Support portal (https://support.elastic.co) or email [email protected].

Update — This incident is still ongoing. AWS Bahrain (me-south-1) has been removed from new deployment selection on cloud.elastic.co. Existing deployments remain inaccessible due to the AWS infrastructure disruption, with no recovery timeline provided by AWS. Assume the region is unavailable for the foreseeable future. For assistance, please open a case in our Support portal (https://support.elastic.co) or email mailto:[email protected].

Update — This incident is still ongoing. AWS Bahrain (me-south-1) has been removed from new deployment selection on cloud.elastic.co. Existing deployments remain inaccessible due to the AWS infrastructure disruption, with no recovery timeline provided by AWS. Assume the region is unavailable for the foreseeable future. For assistance, please open a case in our Support portal (https://support.elastic.co) or email mailto:mailto:[email protected].

Update — Incident ongoing. AWS Bahrain (me-south-1) has been removed from new deployment selection on cloud.elastic.co. Existing deployments remain inaccessible due to the AWS infrastructure disruption, with no recovery timeline provided by AWS. Assume the region is unavailable for the foreseeable future. For assistance, please open a case in our Support portal (https://support.elastic.co) or email [email protected].

Update — Incident ongoing. AWS Bahrain (me-south-1) has been removed from new deployment selection on cloud.elastic.co. Existing deployments remain inaccessible due to the AWS infrastructure disruption, with no recovery timeline provided by AWS. Assume the region is unavailable for the foreseeable future. For assistance, please open a case in our Support portal (https://support.elastic.co) or email [email protected].