Release Notes: May 2025
2025-05-05
End of Support for Ubuntu 20.04 LTS (“Focal”)
Ubuntu 20.04 LTS (“Focal”) has now entered the End of Support phase. ThousandEyes will no longer provide Support Services, nor guarantee software updates (including bug fixes) for customers still running Enterprise Agents on Ubuntu 20.04 LTS. This affects:
Package-based installations.
Image-based installations:
The ThousandEyes Virtual Appliance (TEVA) for VirtualBox, VMware ESXi, and Hyper-V.
The ThousandEyes Physical Appliance (TEPA) for Intel/ASUS NUC and Raspberry Pi 4.
Container images for Cisco Application Hosting Framework (CAF) for all Cisco Devices
Docker for Linux container images.
Please take action soon to ensure that your environment is running the latest available installation type images, as agents not upgraded prior to the End of Life date on June 30th, 2025, will stop submitting results to the ThousandEyes platform.
Updated images and packages for all affected install types are available. For detailed upgrade instructions and additional information, refer to the relevant links below.
For Linux package installations, see Upgrading Linux Packages.
For TEVA and TEPA installations, you can use the automated upgrade capabilities built into the TEVA UI locally or within the ThousandEyes web application. You can also manually replace the image and use a virtual agent cluster to preserve the test configuration, using the instructions here: Replacing an Enterprise Agent Using the Agent Clustering Method.
For CAF upgrade instructions, see: Upgrading Cisco Devices.
For Linux Docker instructions, see: Upgrading Docker Agents.
2025-05-06
Endpoint Agent Client Version 2.3.1
The following enhancements have been made to the Endpoint Agent client:
All Platforms
Fixed an issue introduced in Endpoint Agent 1.240.1 that prevented it from starting unless a compatible version of the Microsoft Visual C++ Redistributable (x86) was installed.
During registration, the agent will now attempt external metadata-based registration for all regions in quick succession.
The agent now uses an upgraded version of libcurl (a patched version based on 8.12.1) to run the HTTP tests.
Previously, the agent sometimes failed to recognize the Cisco AnyConnect VPN, causing inaccurate tests. This issue is now fixed, and the agent reliably identifies the VPN, and there is a slight delay in retrieving the VPN details.
The agent now supports external metadata based registration for customers with umbrella configurations in a regional set up.
The installer files for the Endpoint Agent (MSI and PKG) will no longer contain spaces. Installer names will now use hyphens instead. For example,
Endpoint-Agent-x64-1.2.3.msiYou will receive clarification on why the test mode couldn't run, and we will categorize the 'not supported' error flag into specific reasons, such as issues with the active VPN, operating system, or missing installation (e.g., NPCAP).
Fixed an issue where scheduled tests with short intervals did not randomize their phase, which caused them to be performed in bursts.
Windows
Windows 10 version 1809 and earlier did not support TLS 1.3, which caused the agent to fail. This issue is now fixed, and the agent works properly.
Windows 11 supports TLS v1.3, along with TLS v1.2, for communication between the Endpoint Agent and ThousandEyes.
The Endpoint Agent will now be signed with a new trusted certificate as the old one is expiring. This has no impact on new installations or updates.
macOS
WebSocket connections to the ThousandEyes system have been enhanced to align with the system's proxy configuration, improving overall connectivity and performance.
2025-05-12
Announcing Cisco ThousandEyes Traffic Insights
Traffic Insights introduces new assurance capabilities for monitoring and troubleshooting owned network environments with enhanced visibility. These include:
Flow data collected to the ThousandEyes platform automatically correlated with synthetic test data to quickly triage and expedite root cause determination.
Powerful user interface with filtering by interface, application, and location amongst others.
Stacked charts to easily visualize flow records by application and identify "top talkers".
Customizable alerts and dashboards to promptly address traffic spikes.
Integrated in ThousandEyes Enterprise Agents running on Cisco networking devices (CAF) and ThousandEyes Virtual Appliances (TEVA).
Traffic Insights is available for a 60-day free trial to new or existing Cisco ThousandEyes customers. You can activate your free trial directly within the ThousandEyes portal by navigating to the Traffic Insights on the left-hand menu. For more details on Traffic Insights, please refer to the Traffic Insights documentation.
ThousandEyes Terraform Provider Version 3
ThousandEyes Terraform provider v3, based on ThousandEyes API v7, has now been released.
ThousandEyes API v6 will reach end-of-support on May 27, 2025. We strongly recommend migrating to API v7 to ensure continued support and access to the latest features.
With ThousandEyes Terraform Provider v3, additional resources can be managed:
API Tests
Users, Roles, and Account Groups
Tags and Tag Assignments
Fixes for Alert Rules
Relevant resources:
2025-05-14
Announcing Enhanced Test Creation and Agent Selection
We're thrilled to announce significant updates that improve how you create and configure tests within ThousandEyes. Our refreshed test creation workflow is simpler, more intuitive, and expertly crafted to help both new and experienced users deploy precise, impactful monitoring faster than ever before.
Redesigned Test Creation Workflow:
Clearer Use-Case Guidance: Our updated UI features clearly labeled, popular use-case-based cards to help new users immediately understand and choose the right tests to monitor their networks, applications, and services effectively.
Flexible Navigation: Advanced users retain quick access—one click—to our comprehensive list of available test types, ensuring speedy test deployment without friction.
We’re moving away from the older “Layer + Test Type” split into a single streamlined form per test type.
First up, the Agent-to-Server test, our most popular test, receives this refreshed experience. Forms for HTTP Server, Agent-to-Agent, and additional tests will soon follow, aligning seamlessly with our evolving UX.
You'll now be able to start from popular test cards, templates, or browse all test types — so you can move from idea to deployed test faster.
Cloud Agent Default Groups:
Expertly Curated Cloud Groups: We're introducing default Cloud Agent groups—such as Amazon Web Services Cloud Regions—meticulously selected by ThousandEyes experts based on real-world customer usage patterns and best practices. These preconfigured groups ensure you select the ideal set of agents, optimized by provider and geography, to monitor your environments accurately and effectively.
Rapid, Precise Selection: Enjoy faster deployment with intuitive groups specifically crafted for immediate value, significantly reducing the complexity and guesswork traditionally associated with agent selection.
Complete Flexibility: Rest assured—advanced users retain full control and flexibility through the existing Classic Selector for individual Enterprise Agent selection or fine-tuning beyond our recommended groups.
This is a gradual rollout that will be happening over the next month. Contact your account manager for more information.
Bulk Actions Are Here
We’re excited to share that bulk actions are now available across your test settings! You can now quickly enable, disable, and delete multiple tests at once—saving time and streamlining test management at scale. This is a gradual rollout over the coming weeks. If you don’t see it yet, hang tight! Have ideas for additional bulk actions that would make your workflow smoother? Reach out to your account manager or support—we’re actively planning what comes next.
2025-05-22
New Podman Version for BrowserBot
The new Podman version v4.9.4 is now available for upgrade for Enterprise Agents using BrowserBot. This upgrade will be seamless for our users, but it is available if you wish to update to the latest compatible version of Podman. For information on the latest Podman compatibility with BrowserBot, see Podman Version Compatibility for Linux Distributions.
API Test Improvements
We've improved the capabilities of the API test type:
The ability to use in-line credentials within the API test type builder for custom authentication options.
The ability to use functions in the API test type builder for APIs that require time-based parameters.
Better syntax highlighting for crafting the request body content for JSON, XML, and plaintext.
Client certificate support, similar to all other test types.
The option to bypass SSL verification for each API step.
For more information, see API Tests.
2025-05-23
End of Life for ThousandEyes Azure Cloud Template Deployments
ThousandEyes is ending support for deploying Enterprise Agents using the Microsoft Azure Cloud Template on June 30th, 2025. This will align with the previously announced End of Life phase for all Enterprise Agents running on Ubuntu 20.04 LTS (which includes Microsoft Azure Cloud Template deployed agents).
Please take action soon to ensure that your environment is running the latest available installation image, as agents not upgraded prior to the End of Life date on June 30th, 2025, will stop submitting results to the ThousandEyes platform.
To upgrade Enterprise Agents that were deployed with Microsoft Azure, refer to the Upgrading Linux Packages documentation. For additional questions, please contact ThousandEyes Customer support.
2025-05-28
Distributed Tracing with Splunk Observability APM Integration
This feature allows Network/Edge, Infrastructure/SRE and Application teams quickly determine whether latency or errors originate from a network or application issue. It provides in-context access to detailed trace data across the Cisco portfolio, enabling faster root cause analysis and improved digital resilience.
Integration capabilities:
Distributed Tracing: Enable OpenTelemetry and B3 trace headers in HTTP server and API tests using advanced test settings. ThousandEyes automatically sends unique trace headers to identify synthetic test data.
Integrations 2.0 support for Splunk Observability APM: Pull trace data from Splunk Observability Cloud APM into ThousandEyes to collect full end-to-end data for your supported synthetic tests.
Augment CEA views with backend service map from your APM: Enhance CEA views with a preview of the APM service map, based on ThousandEyes active synthetic probes. These views highlight latency or errors, and provide direct links to the related traces in Splunk Observability Cloud APM for further details.
Splunk Observability Cloud APM deep links for ThousandEyes Synthetics: In-context deep links back to ThousandEyes are included in Splunk traces, along with indexed attributes that make it easier to search for ThousandEyes synthetic test data using distributed tracing.
For more information, see Distributed Tracing with Splunk Observability APM.
2025-05-29
General Availability of Large Language Model Event Summaries and Recurring Events
Large language model (LLM)-based event summaries, and the ability to automatically recognize and group recurring events, are now available to all ThousandEyes customers.
For more information, see Event Summarization and Recurring Events.
2025-05-30
DNS Layer Views on DNS Server Tests Have Been Updated
DNS Layer Views on DNS Server tests have been updated to add both flexibility and granularity:
Multi-test DNS Support - See multiple DNS queries to different DNS servers (resolver, various name servers) from various agent vantage points all together in the same DNS layer view to quickly identify what's working and what's not in your distributed DNS architecture.
View DNS responses and error details - See what your DNS responses are to understand for each DNS query from an agent to a DNS Server or the exact error from the DNS Server.
Group by Server, Agent, Record - to see aggregate metrics available previously available through views now standardized and visualized (for min, max, average) across each grouping option.
Search, Sort and Filter through DNS Responses - ability to search through DNS responses and filter for specific locations, name servers. Sort the DNS responses by responses or error details.
Last updated