Release Notes

Related pages:

This page covers release information for the Splunk AppDynamics SaaS 25.4 release. For product updates, including release dates, support advisories, and end-of-life notices, see Product Announcements and Alerts Home.

When there is an update to an artifact, you can find the new version numbers in the following tables. Version numbers are also displayed on the Downloads Portal.

SaaS Controller Enhancements

Starting with version 25.4.0, Splunk AppDynamics SaaS documentation is available on the new Splunk help portal. Visit the new portal.

Agent Management Enhancements

There is no Agent Management release.

SaaS Controller Resolved Issues

Starting with version 25.4.0, Splunk AppDynamics SaaS documentation is available on the new Splunk help portal. Visit the new portal.

Agent Enhancements

The following table lists the Agent enhancements included in the 25.4 release.

No results found.

Agent

Summary

Release Version

Release Date

Analytics Agent

This release upgrades the following third-party libraries:

Component	Previous Version	Upgraded Version
`commons-collections`	3.2.1	3.2.2
`dom4j`	2.1.1	2.1.3
`guava`	16.0.1	33.3.0-android
`jruby`	1.6.7	1.7.3
`logback`	1.4.14	1.5.16
`log4j-over-slf4j`	1.2.17	1.7.36

25.4.0

April 29, 2025

Android Agent

There is no 25.4.0 release.

-

Apache Web Server Agent

This release:

Fixes bugs. See Agent Resolved Issues.
Supports Java Runtime Environment 11.78.
Upgrades the Java proxy to version 25.3.0.36893.
Upgrades the following third-party libraries:
Component Previous Version Upgraded Version
expat 2.6.3 2.7.1
apr (org.apache.apr) 1.7.2 1.7.5

25.4.0

April 14, 2025

Splunk AppDynamics AWS Lambda Extension for Serverless APM

There is no 25.4.0 release.

-

C/C++ SDK

This release introduces a new HTTP client to improve communication between the SDK and Controller. It does not require any changes to host applications.

25.4.0

May 8, 2025

Cluster Agent There is no 25.4.0 release. - -

Cordova Plugin

This release supports the Cordova plugin 12.0.

-

April 28, 2025

Database Agent

This release includes the following enhancements when you are using the Controller version 25.4.0 or higher:

HashiCorp Vault support to provide database credentials and secrets while using Database Monitoring. Also, you can add and update the HashiCorp Vault attributes using the Database Visibility API.
The Always On monitoring support for Microsoft SQL Server. You can monitor the availability groups in your Microsoft SQL Server clusters to troubleshoot incidents in your production environment.
Storage utilization monitoring and tracking for the Microsoft SQL Server databases. Drill down from the Databases and the Filegroups tabs to the individual data files on the Data Files tab to identify any unexpected storage spikes.
While monitoring Amazon RDS, the Access Key and Secret Access Key fields are now optional. You do not need to specify these details if the Database Agent is deployed on an Amazon EC2 instance using the same Amazon Account as RDS and can access CloudWatch.

Upgraded the following third-party components:

Component	Previous Version	Upgraded Version
`netty`	4.1.115.Final	4.1.118.Final
`mysqlConnectorJava`	9.0.0	9.2.0
`json-smart`	2.4.10	2.5.2

25.4.0

May 2, 2025

Flutter Agent

There is no 25.4.0 release.

-

Go SDK

There is no 25.4.0 release.

-

IBM Integration Bus Agent

There is no 25.4.0 release.

-

iOS Agent

There is no 25.4.0 release.

-

Java Agent

Supports SapMachine JDK 11, 17, and 21. See Java Supported Environments.
Introduces a new prometheus-metric-report-interval node property to define the Prometheus metric reporting interval.
Provides agent in RPM package. See Download and Install the Java Agent Distribution.
Includes bug fixes. See Agent Resolved Issues.

25.4.0

May 8, 2025

Java Serverless Tracer

There is no 25.4.0 release.

-

JavaScript Agent

There is no 25.4.0 release.

-

Machine Agent

Bundles the agent with the following JREs:
- Java 17 (17.0.14) for Windows, Linux
- Java 11 (11.0.26) for Solaris
Fixes bugs. See Agent Resolved Issues.

Upgrades the following third-party libraries:

Component	Previous Version	Upgraded Version
`busybox`	1.36.1	1.37.0
`commons-collections`	3.2.2	4.5.0-M3
`Logback`	1.4.14	1.5.9
`Netty`	4.1.117.Final	4.1.118.Final
`singularity-common`	1.0.5	1.0.8
`Wiremock-standalone`	2.18.0	2.27.2

The HP-UX JRE is not bundled because JRE 11 is unavailable for HP-UX, so you must use your own JAVA 11 (JRE/JDK).
If you are using Machine Agent on AIX, switch to the HP-UX agent image. The standalone image MachineAgent.zip uses Java 17. It is incompatible with AIX because AIX supports Java environments only up to Java 11.

25.4.0

April 30, 2025

MAUI Agent

There is no 25.4.0 release.

-

Network Agent

There is no 25.4.0 release.

-

Node.js Agent There is no 25.4.0 release. - -

Node.js Serverless Tracer There is no 25.4.0 release. - -

.Net Agent

Includes code enhancements and bug fixes.
Reports following data to Controller:
- appdynamicsWorkloadKind
- appdynamicsPodUID
- appdynamicsWorkloadKindUID

25.4.0

May 9, 2025

PHP Agent

This release:

Upgrades the following third-party libraries:
Component Previous Version Upgraded Version
protobuf 3.21.12
3.25.6
JRE 11.72
11.78
Fixes bugs. See Agent Resolved Issues.

25.4.0

May 14, 2025

Python Agent

You can now create custom cost metric expression to monitor OpenAI APIs. This expression helps you calculate cost per million tokens for both Input and Completion tokens. See Create Custom Cost Metric Expression.

25.4.0

April 30, 2025

Supports Python 3.13 version. See Python Supported Version.

Supports updating the protobuf implementation.

SAP

There is no 25.4.0 release.

-

Smart Agent

With this release, you can:

install Machine Agent using the smartagentctlbinary. See Install Machine Agent Using smartagentctl.
install Smart Agent and Machine Agent on remote host. You can also automate the installation on multiple remote Linux hosts by using hosts.yaml file. See Install Smart Agent and Install Machine Agent in Remote Host.
upgrade Java Agent or Machine Agent by retaining the modified files in the Smart Agent directory. See Upgrade Agents.
manage the Machine Agent processes because Smart Agent now monitors the processes and restarts the processes. See Run Machine Agent as a Process on Remote Host.
install Smart Agent without using the --enable-auto-attach install parameter because it is no longer required to set the APPD_SMART_AGENT environment variable. This variable is required to associate agents in Controller. See Install Smart Agent.

25.4.0

April 9, 2025

Hosted Synthetic Agent

This release includes code optimization.

25.4.0

May 7, 2025

Private Synthetic Agent

This release supports Chrome browser version 132. See Configure Synthetic Jobs.

25.4.0

April 23, 2025

Xamarin Agent

There is no 25.4.0 release.

-

Agent Resolved Issues

No results found.

Key	Product	Summary	Severity Level	Affected Version(s)	Release Version	Release Date
DBMON-11015	Database Agent	Upgraded the Java Agent base image to `jre17`.	High	-	25.4.0	May 2, 2025
DBMON-11006	Database Agent	Database Agent does not collect data for Microsoft SQL Server database.	High	25.1.0	25.4.0	May 2, 2025
DBMON-11003	Database Agent	Database Agent displays an error while processing the `InnoDB` metrics in MySQL database.	Medium	25.1.0	25.4.0	May 2, 2025
DBMON-10878	Database Agent	Database Agent does not connect to the Microsoft SQL Server database if the collector is configured using the Windows authentication.	Medium	25.1.0	25.4.0	May 2, 2025
DBMON-10805	Database Agent	Database Agent creates multiple processes on the database server.	Medium	24.11.0	25.4.0	May 2, 2025
DOTNET-7464	.Net Agent	The agent stops working when instrumenting a .NET 6+ application with preload enabled and IIS automatic configuration turned off.	Medium	25.2.0	25.4.0	May 9, 2025
DOTNET-7493	.Net Agent	Sometimes, the MIDC Data Collectors fail to gather data from asynchronous methods. This happens due to a race condition in task instrumentation, where multiple tasks or threads access and change shared data at the same time without proper synchronization.	Medium	All versions	25.4.0	May 9, 2025
DOTNET-7494	.Net Agent	The agent Docker image cannot be deployed in OpenShift and Kubernetes environments.	Medium	25.2.0	25.4.0	May 9, 2025
JAVA-13874	Java Agent	The Controller randomly drops some events. This happens because the agent sends excessive number of events to the Controller.	Medium	24.8.0	25.4.0	May 8, 2025
JAVA-13935	Java Agent	In distributed asynchronous transactions, the agent may mistakenly classify all transaction segments as entry points for analytics. This can lead to the selection of an incorrect segment for capturing a snapshot.	Medium	25.1.0	25.4.0	May 8, 2025
JAVA-13922	Java Agent	The Java Agent auto-instrumentation fails because the agent extracts container ID even when `containerAppCorrelationMethod` is set to `none`.	High	25.1.0	25.4.0	May 8, 2025
PHP-2666	PHP Agent	The PHP agent reports segmentation faults when the Method Invocation Data Collector (MIDC) is enabled. This impacts agent performance and leads to the loss of analytics data.	Medium	24.4.0 or newer	25.4.0	May 14, 2025
PHP-2680	PHP Agent	In the `install.sh` script, a proxy flag automatically launches the proxy that overrides other proxy settings.	Medium	24.11.0	25.4.0	May 14, 2025
WEBSRV-1252	Apache Web Server Agent	The agent proxy does not start using the command line option.	-	24.11.0	25.4.0	April 14, 2025
WEBSRV-1257	Apache Web Server Agent	The PHP Agent does not report to Controller when Apache Agent is instrumented with PHP Agent using the `mod_php` module.	-	23.x, 24.x	25.4.0	April 14, 2025
SERVER-9907	Machine Agent	When the agent starts as a service on Linux, it records an error in the startup logs. This happens because the log4j2 settings are not properly configured.	Medium	24.9.0	25.4.0	April 30, 2025
SERVER-9903	Machine Agent	JVM crash guard does not work on Windows.	Medium	24.12.0	25.4.0	April 30, 2025
SERVER-9884	Machine Agent	Some JRE files that are bundled with agent include incorrect permissions.	Medium	24.10.0	25.4.0	April 30, 2025
SERVER-9874	Machine Agent	Grok pattern for log analytics displays an error message in the Controller UI. This issue occurs when using the Analytics Agent image bundled with Machine Agent.	Medium	25.1.0	25.4.0	April 30, 2025
SERVER-9825	Machine Agent	The agent shows memory and CPU usage data that do not match the actual server data.	Medium	24.10.0	25.4.0	April 30, 2025
SERVER-9824	Machine Agent	The HP-UX agent produces an incorrect collector script, where the JSON output is missing the closing (`}`) character. This causes problems when debugging the script output.	Low	24.10.0	25.4.0	April 30, 2025
SERVER-9725	Machine Agent	The agent does not report all `/dev` volumes.	Medium	24.8.0	25.4.0	April 30, 2025
SERVER-9710	Machine Agent	The agent fails to terminate the collector script after a timeout, leading to a metrics gap.	High	25.1.0	25.4.0	April 30, 2025

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Agent Known Issues

Agent	Summary
Java Agent	When OpenTelemetry is enabled in Java Agent, it fails to export the OpenTelemetry span data and generates the `No otel/splunk-otel-javaagent.jar found` error message. This issue occurs in Java Agent versions 25.3.0 and 25.4.0. Workaround: To resolve this issue, add the following system property to your JVM configuration: `-Dagent.deployment.mode=hybrid` CODE

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