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Release Notes
Splunk AppDynamics On-Premises Enhancements
When there is an update to an artifact, you can find the new version on the Downloads Portal.
| Product / Component | Summary | Release Version | Release Date | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alert and Respond | You can now create health rules on synthetic jobs to detect any user experience issues for browser applications and API monitoring. In the Create Health Rule wizard, select User Experience: Browser Apps or User Experience: API Monitoring and configure a critical or warning condition on the synthetic job metrics. You receive alerts when the metrics exceed the specified threshold value. See Health Rule Entities. | 25.4.0 | June 04, 2025 | ||||||||||||||||||||
To create, update, delete, import, and override the alerting templates, you now require the If you are an account owner or administrator, the permission is enabled by default in your user profile. To enable the permission in other user profiles, contact your account owner or administrator. See Alerting Templates. | |||||||||||||||||||||||
| Business Transactions | The release introduces the Override Lockdown option in the Rule Editor. This feature allows business transactions from specific rules to bypass the general lockdown, keeping them in the monitored list instead of moving to the overflow tab. It solves the problem of mixing transactions from critical and non-critical rules in the overflow bucket, especially aiding users with a large number of applications in capturing essential transactions as Business Transactions. The Override Lockdown feature is available only for Java applications. This feature:
From this release, the Overflow tab displays when the:
See Custom Match Rules. | 25.4.0 | June 04, 2025 | ||||||||||||||||||||
| EUM Server | You can now set up Session Replay for your mobile applications. Session Replay enables you to observe user activity and interactions on your mobile application. See Session Replay (Beta). 
Disclaimer This documentation mentions a product that is currently only available as an early preview ("Beta"). Splunk AppDynamics reserves the right to change the Beta and its documentation including the content herein, at any time, for any reason, and without notice or compensation to you before making it generally available as well as never making it generally available. This documentation is not a guarantee of future product features and should not be relied upon in making any purchasing decisions. Actual product results may vary from forward-looking statements due to factors including but not limited to: changes in Splunk AppDynamics and third-party technologies, factors related to the economy and target markets, acquisitions of other companies, the hiring and termination of personnel, and other factors. Please refer to the full terms at https://www.splunk.com/en_us/legal/appdynamics-limited-license-agreement.html for details. | 25.4.0 | May 08, 2025 | ||||||||||||||||||||
Upgraded MySQL version:
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This release includes bug fixes. | |||||||||||||||||||||||
| Synthetic Server | This release includes code optimization.
| 25.4.0 | May 22, 2025 | ||||||||||||||||||||
| Controller | This release introduces the UI based entity tagging using the new Admin > Tag Management page in the Controller UI. You can also access it from the left navigation pane. It is a user-friendly alternative to the Custom Tag APIs functionality. You can:
See Tag Management. | 25.4.0 | June 04, 2025 | ||||||||||||||||||||
The following libraries are upgraded:
| 25.4.0 | June 04, 2025 | |||||||||||||||||||||
| Enterprise Console | Upgraded MySQL version:
| 25.4.0 | June 04, 2025 | ||||||||||||||||||||
| Custom Dashboard | You can now select the following time ranges on the dashboards and related reports:
| 25.4.0 | June 04, 2025 | ||||||||||||||||||||
| The Dashboards & Reports > Dashboards page now displays the last viewed date and time. | 25.4.0 | June 04, 2025 | |||||||||||||||||||||
| Database Monitoring | This release supports:
| 25.4.0 | June 04, 2025 | ||||||||||||||||||||
| This release supports Always On monitoring for Microsoft SQL Server. You can monitor the availability groups in your Microsoft SQL Server clusters to troubleshoot incidents in your production environment. See Always On Cluster Window. | 25.4.0 | June 04, 2025 | |||||||||||||||||||||
| You can now monitor and track storage utilization of your Microsoft SQL Server databases. Drill down from the Databases and Filegroups tabs to the individual data files on the Data Files tab to identify any unexpected storage spikes. See Database Files Window. | 25.4.0 | June 04, 2025 | |||||||||||||||||||||
| Metric Browser | This release introduces the search functionality on the Metric Browser - Server Visibility page to search for any specific metric group within the first four levels of the metric tree. You require minimum three strings to initiate a search. When you specify the string in the search field and click Search, you can view the total number of matches found with the navigation arrows to move to previous or next match in the sequence. See Server Visibility Metric Browser. | 25.4.0 | June 04, 2025 | ||||||||||||||||||||
| Licensing | The Controller UI displays a grouped notification for the registered agents when there is no vCPU information. The notification is displayed every 15 minutes based on the agent host IDs | 25.4.0 | June 04, 2025 |
Splunk AppDynamics On-Premises Resolved Issues
| Issue key | Product | Summary | Severity | Affects Version/s | Fix Version/s |
|---|---|---|---|---|---|
| EUMPLAT-6978 | End User Monitoring | The EUM server fails to start after upgrading and provisioning the EUM licenses. | High | 25.1.0 | 25.4.0 |
ANLYTCS_ES-17151 | Events Service | Errors appear in the Events Service logs after the Events Service is upgraded. | Medium | 24.10.0 | 25.4.0 |
Splunk AppDynamics On-Premises Virtual Appliance Enhancements
There is no Splunk AppDynamics On-Premises Virtual Appliance 25.4.0 release.
Agent Enhancements
The following table lists the Agent enhancements included in the 25.4.0 release.
No results found.
Agent | Summary | Release Version | Release Date | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Analytics Agent | This release upgrades the following third-party libraries:
| 25.4.0 | April 29, 2025 | |||||||||||||||||||||
| Android Agent | There is no 25.4.0 release. | - | - | |||||||||||||||||||||
Apache Web Server Agent | This release:
| 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 | There is no 25.4.0 release. | - | - | |||||||||||||||||||||
Database Agent | This release includes the following enhancements when you are using the Controller version 25.4.0 or higher:
Upgraded the following third-party components:
| 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 |
| 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 |
| 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 |
| 25.4.0 | May 9, 2025 | |||||||||||||||||||||
PHP Agent | This release:
| 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:
| 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 | 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 |
COSMOSX-2305 | Smart Agent | Cannot upgrade Machine Agent on Windows using Smart Agent. | High | 25.2.0 | 25.4.0 | April 9, 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 ( | 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 |
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 Workaround: To resolve this issue, add the following system property to your JVM configuration:
CODE
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Agent Management Enhancements
There are no UI updates. However, there are updates to Smart Agent. See Smart Agent enhancements.
Cisco Secure Application Enhancements
There are no Cisco Secure Application enhancements.
There is no 25.4.0 release.
ThousandEyes Integration Enhancements
There is no 25.4.0 release.