
Hello, this is Mackerel team CRE
id:yohfee. I'm pleased to share the details of this update.
- Added Aurora role and read replica information to RDS host details in the AWS Integration
- Improved metric retrieval for Step Functions in the AWS Integration
- You can now set SAML session expiration for organization groups in the Web Console
- Added Oracle Linux 10 support for mackerel-agent
- Ended Kubernetes 1.32 support for mackerel-container-agent
- [Notice] Upcoming end of Amazon Linux 2 support for mackerel-agent
Added Aurora role and read replica information to RDS host details in the AWS Integration
In RDS host details in the AWS Integration, it is now easier to understand Aurora roles such as writer/reader and primary/replica from the host details page.

Improved metric retrieval for Step Functions in the AWS Integration
In Step Functions monitoring in the AWS Integration, environments with many state machines could hit rate limits while fetching tags, which sometimes caused metric retrieval to fail.
With this change, when IAM has the tag:GetResources permission, tag retrieval is now more efficient, preventing metric retrieval failures caused by rate limit excess.
You can now set SAML session expiration for organization groups in the Web Console
You can now configure SAML session expiration for organization groups from the Web Console.
In the previous release, we enabled setting login session expiration for SAML authentication using values included in the IdP authentication response.
With this update, even when you use an IdP such as Entra ID that cannot configure the relevant item, you can now manage session expiration in the same way via Web Console settings.

Added Oracle Linux 10 support for mackerel-agent
Oracle Linux 10 is now supported by mackerel-agent.
Ended Kubernetes 1.32 support for mackerel-container-agent
Following the end of standard support for Kubernetes 1.32 in Amazon EKS, we have ended Kubernetes 1.32 support for mackerel-container-agent.
Please note that this does not mean mackerel-container-agent currently in use will stop working immediately.
[Notice] Upcoming end of Amazon Linux 2 support for mackerel-agent
As announced by AWS, support for Amazon Linux 2 will end on June 30, 2026.
In line with this, we plan to end Amazon Linux 2 support for mackerel-agent.
We will announce the support end date again. If you are using Amazon Linux 2, please consider migrating to a successor OS such as Amazon Linux 2023.