• 2026.06.30 News From Expert Insight to Team Strength: The Vision Behind Mackerel's Log Feature
• 2026.06.29 Release Detailed information for each route is now available from the APM's HTTP Server tab, plus 3 other updates
• 2026.06.11 Release OK notifications are now sent when alerts are closed due to host retirement, and more
• 2026.05.27 Release Amazon Connect Now Supports Tag-based Filtering in AWS Integration, and more
• 2026.05.07 Release Added Amazon Aurora metadata to RDS host details in the AWS Integration, and more
• 2026.04.22 Release External URL Monitoring Now Supports IPv6 and more
• 2026.04.17 Release Improved searchability for high-cardinality metrics in Metric Explorer, and more
• 2026.04.16 News Important: IPv6 Support for Mackerel Web Console and API Endpoints, and Associated Action Required for "IP restriction" Settings
• 2026.03.30 News Notice of Support Desk Closure during the Golden Week
• 2026.03.27 News Notice: Due to the implementation of IPv6 support for external monitoring, alerts may be sent again