Upgrade wazuh cluster -> 4.13.0

[ArmandMeppa]

Description

We need to upgrade the Wazuh cluster to version 4.13.0 to leverage the latest features, performance improvements, and security patches. The upgrade will be executed in two phases:

1. Dev Cluster Upgrade – to validate the upgrade process and ensure compatibility.
2. Production Cluster Upgrade – to be performed only after successful validation in the dev environment.

Definition of Ready

• Wazuh 4.13.0 release notes and upgrade documentation reviewed.
• Backup and restore procedures for both dev and prod clusters are tested.
• Maintenance windows for both environments are scheduled and approved.
• Stakeholders are informed of the upgrade plan and potential downtime.
• Rollback plans are documented and tested for both environments.

Acceptance Criteria

Dev Cluster

• All Wazuh components (manager, indexer, dashboard) are upgraded to 4.13.0.
• Dev cluster is stable and functional post-upgrade.
• Existing configurations and rules are preserved and validated.
• Agents are reporting correctly.
• Upgrade steps are documented and validated.

Production Cluster

• Upgrade is performed only after dev validation is complete.
• All components upgraded to 4.13.0 with no critical issues.
• Monitoring confirms system health and agent connectivity.
• Functionality (alerts, dashboards, rules) is verified.
• Stakeholders are notified of successful upgrade.

Definition of Done

• Dev and prod clusters are both running Wazuh 4.13.0.
• System stability confirmed for 48 hours post-upgrade in both environments.
• Upgrade documentation is finalized and stored in the internal knowledge base.
• All related issues and PRs are linked and closed.
• Stakeholders are informed of completion.