OneAgent release notes version 1.315

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Rollout start: Jun 3, 2025

With this release, the following are the oldest supported OneAgent versions.

Support levelOldest supported version
Standard Support1.297
Enterprise Success and Support1.291

For details, see How long are versions supported following rollout?.

Breaking changes

Application Observability

Suspend tracing for LPARs with inactive SMF U86 exit

As part of our requirements, SMF U86 exit must be active.

  • If it's not, OneAgent for z/OS will deactivate tracing for affected LPARs after 12 hours.
  • Once the exit is active, tracing will be reactivated again.

To verify that the SMF U86 exit is active, run the following command:

D SMF,O

Look in the command output for (EXITS(IEFU86)).

  • If you find this, the SMF U86 exit is active.

  • If you don't find this, you need to add it to your SMFPRMxx parmlib member.

    SUBSYS(STC,EXITS(IEFU86)

    Then enable it.

    D PROG,EXIT,EN=SYS.IEFU86,DIAG

For more information, see Install the zDC subsystem.

Application Observability | Distributed Traces

Subagent-specific configurations

This release closes some gaps between the subagent-specific settings in the web UI and OneAgent for z/OS. This makes it possible to make settings specific to subagents as far as they apply to the zAgent.

Your default zRemote-wide settings should not be impacted because of this change, but please be aware of the possibility that changes to subagent settings you might have made in the past become active with this update.

Technology support

Technology support version schema

Definition of the technology support version schema with examples:

  • Major version 5 is supported

    • Major version 5 is supported, including all of its minor versions like 5.1 and 5.2
    • Other major versions are not supported like 6 and 7

  • Minor version 5.1 is supported

    • Minor version 5.1 is supported, including all of its patch versions like 5.1.1 and 5.1.2
    • Other minor versions are not supported like 5.2 and 5.3

  • Patch version 5.1.1 is supported

    • Patch version 5.1.1 is supported
    • Other patch versions are not supported like 5.1.2 and 5.1.3

  • Version range 5.1 – 5.3 is supported

    • Minor versions 5.1, 5.2, and 5.3 are supported, including all of their patch versions like 5.1.1, 5.2.1, and 5.3.1
    • Other minor versions are not supported like 5.0 and 5.4

  • The minimum required version is 5+

    • All major, minor, and patch versions starting from version 5 are supported, like 5, 5.1, 5.1.1, and 6

For more information, see New technology support.

End of support

For more information, see End-of-support announcements.

New features and enhancements

Databases | DB2 monitoring on z/OS

Phase 1 of DB2 monitoring on z/OS

In Phase 1 of DB2 monitoring on z/OS, the following key metrics are now collected:

  • CPU metrics

    • CPU time for DB2 subsystem
    • CPU time for DB2 MSTR
    • CPU time for DBM1 address space

  • Connection metrics

    • Total number of active connections
    • Number of outbound connections from DB2 to remote site
    • Number of inbound connections to DB2 from remote site
    • Number of failed connections

  • zIIP time

  • Number of EDM pool requests

  • Number of cache hits

Application Observability | Distributed Traces

Alpine Linux (musl libc) on ARM64 for containers (Apache and PHP modules)

Dynatrace now supports monitoring of Alpine Linux (musl libc) on ARM64 for containers (Apache and PHP modules).

Infrastructure Observability | Hosts

Hostname parameter based on definition from the Semantic Dictionary

The hostname parameter and host.name resource attribute now represent the same value based on the definition from the Semantic Dictionary.

Logs

Optimized handling of log sources with many files

We have optimized the handling of log sources that have a very high number of files.

Infrastructure Observability | AWS

Automatic SNS tracing of the AWS SDK for sending and receiving messages

We now support automatic SNS tracing of the AWS SDK for monitoring publishing messages from Node.js applications (AWS SDK for JavaScript version 2+).

Infrastructure Observability | AWS

AWS SDK support for Node.js

We now support automatic tracing of the AWS SDK in Node.js applications.

Infrastructure Observability | AWS

Automatic Amazon DynamoDB (Java and Node.js)

We now support automatic DynamoDB tracing of the AWS SDK calls for Node.js and Java applications.

Infrastructure Observability | AWS

Automatic Amazon EventBridge (Java and Node.js)

We now support automatic EventBridge tracing of the AWS SDK calls for Node.js and Java applications.

Resolved issues

    OneAgent for Android

      OneAgent for iOS

        OneAgent for JavaScript