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AppDynamics Team (Retired)

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In May, we released the 21.5.0 Controller and Enterprise Console as well as key product enhancements and agent updates. We also resolved a series of issues associated with the previous release.

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What highlights should I know about?

These release highlights include the newest features and capabilities this month, at a glance. In the grid below, we’ve flagged who within your organization may be most interested or impacted for each enhancement. 


User and Performance Analyst
Admin and Implementer
Fullstack Observability
ThousandEyes Integration

Database Visibility

SAP monitoring improvements

Agent Updates

AppDynamics AWS Lambda Extension for Serverless APM

Machine Agent

Xamarin Agent

New Private Synthetic Agent

Node.js Agent

.NET Agent for Linux

System Administration Updates
Updated user creations and password policies  


Full-Stack Observability

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Agent Updates

  • With the newest AppDynamics AWS Lambda Extension for Serverless APM, you can now choose ARN 10 which corresponds with the below versions (Released May 10, 2021):
    • Node (npm) 21.5.286
    • Python (PyPI) 20.11.411


  • The latest version of the Machine Agent we have upgraded the following third-party libraries (Released May 19, 2021):
    • Ant 1.10.10
    • Dropwizard 2.0.21
    • Fabric8-Kubernetes 4.13.3
    • Jackson 2.12.3
    • Jetty
    • OSHI 5.7.2
    • Version 21.5.0-3130 - May 19, 2021 


  • The new Xamarin Agent supports recently exposed APIs giving you better the ability to (Released May 18, 2021)
    • Configure a semi-automatic HTTP tracker using the HttpMessageHandler
    • Transform URLs for network requests
    • Configure, disable, block, and unblock screenshots

  • We are excited to announce that our new Private Synthetic Agent that runs on K8 Clusters is available now. This new agent is built to reduce overhead and scale with ease, ensuring you have the proper coverage to synthetically monitor your web applications. (Released May 25, 2021)

  • We have made significant upgrades to our .NET Agent for Linux including the ability to filter sensitive data, custom endpoint detection, general improvements to instrumentation and configurations, and much more.  Learn more, and upgrade, to the new .NET agent for Linux today.  (Released May 28, 2021)

  • The latest Node.js Agent now includes support for gRPC. (Released May 28, 2021)

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System Admin Updates

  • We released an enhancement that improves how administrators create users, as well as updates to our password policies. These changes are meant to improve security while laying the groundwork for new capabilities that will be rolled out in the near future. Check out the Changes to User Creation and Password Policy FAQ for details.  (Staged release started February 22, 2021)


To view all technical documentation associated with this month’s releases, please visit Product Announcements, Alerts, and Hot Fixes in our documentation portal.

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Heads up - What else you should know 

  • Check out the usability updates on our Zendesk form, used to open Support Engineering tickets. Geared toward your ease of use, the form flows in a more usable and intuitive sequence. See AppDynamics Support is simplifying ticket filing requirements for details. (May 3, 2021)
  • We invite you to our Share a tip space, where the AppD community can exchange peer-to-peer advice. Find those small adjustments that make a big difference, and add your own insights too.

  • Have a great product idea? Contribute to the AppDynamics Community Idea Exchange. You will be able to submit your ideas, as well as vote on or discuss ideas from other community members.

    To participate, sign in to the community and look for the Idea Exchange button in the top navigation. See Idea Exchange Guidelines for more details. We hope to see you there, adding your stamp to our next steps.

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Share your feedback! Participate in a Beta today

We’re currently running the following Beta program and looking for your feedback:

  • Submit feedback on the Dash Studio through the in-product feedback button, or in Community here.

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Resolved Issues

The following key issues were resolved this month. To see a complete listing of this month's resolved issues, see Resolved and Known Issues heading on the Release Notes page.


  • DBMonEventBus post event caused threadpool saturation (21.5) (DBMON-8037)

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Get Started

PLEASE NOTE: customers are advised to check backward compatibility
in the
Agent and Controller Compatibility documentation


Download Essential Components
(Agents, Enterprise Console, Controller (on-prem), 
Events Service, EUM Components)

Download Additional Components (SDKs, Plugins, etc.)

How do I get started upgrading my AppDynamics components for any release?

Product Announcements, Alerts, and Hot Fixes


License Entitlements and Restrictions

Can’t find what you’re looking for? Need more assistance?
Ask a question in the Latest Release forum.

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Version history
Last update:
‎06-23-2021 11:58 AM
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