Messaging API server outage resolved
A server outage in the Messaging API caused some requests to fail, and the service has now fully recovered.
Mackerel terms of service and privacy policy will change
The terms of service and privacy policy will change with new provisions for third-party consent and additional data use purposes.
The Mackerel for KCPS terms of use and Mackerel privacy policy will change
On October 1, 2026, the terms of use for Mackerel for KCPS and the privacy policy will change regarding personal data handling.
Report on PHP Conference 2026 and release of demo code on GitHub
You can now read the PHP Conference 2026 event report and access the booth demo application source code on GitHub.
Resolved server outage across LINE Platform services
A server outage that caused errors and delays across multiple LINE Platform services has been fully resolved.
Revised LINE In-App Purchase Terms of Use for LINE MINI App providers
LY Corporation revised the LINE In-App Purchase Terms of Use for LINE MINI App providers to clarify party responsibilities and authority.
Results announced for Zennfes Spring 2026
You can now view the results of the Zennfes Spring 2026 article writing event.
Zenn Publication Pro reached 100 publications
Zenn Publication Pro reached 100 publications, and a new home screen for viewing followers and comments is planned for future release.
Three ways to send Rails logs to Mackerel with trace correlation
You can now send Rails logs to Mackerel with trace correlation by outputting single-line JSON to an OpenTelemetry collector.
Revision to LINE In-App Purchase Terms of Use for LINE MINI App providers
The LINE In-App Purchase Terms of Use for LINE MINI App providers is scheduled to be revised on July 27, 2026.
Mackerel support desk closure during the Bon holiday period
The Mackerel support desk will be closed from August 10 to August 14, 2026.
You can now check the roundup of microCMS updates
You can now view a summary article of microCMS updates published in the first half of 2026.
Digital ordinance promulgation in Nara Prefecture using GMO Sign electronic seal
Nara Prefecture can now digitize ordinance promulgations using the GMO Sign electronic official seal.
Sponsorship of PHP Conference 2026 and booth exhibition
At PHP Conference 2026, you can visit the booth to see demonstrations of the upcoming Mackerel log feature and join hands-on activities.
You can now view the results of the 2026 Q2 Zenn Publication Awards
You can now view the awards ranking for publications that posted at least nine articles between April and June 2026.
Ibaraki Prefecture starts digital ordinance promulgation with GMO Sign
Ibaraki Prefecture has implemented GMO Sign to manage ordinance promulgation digitally.
Miyakonojo City adopts GMO Sign Electronic Seal for disposition notices
Miyakonojo City can now use GMO Sign Electronic Seal to issue administrative disposition notices online.
You can now read an explanation of observability and how it differs from monitoring
You can now read a guide explaining observability concepts, how it differs from monitoring, and adoption tips.
You can now read the event report for JJUG CCC 2026 Spring
You can now review the booth activities and related materials from JJUG CCC 2026 Spring.
Guide on distributed tracing using Mackerel APM and OpenTelemetry
A guide explains how to trace front-end and back-end performance and identify bottlenecks using Mackerel APM and OpenTelemetry.
