Release Notes: February 2023


End of Installation Support for Ubuntu 18.04 LTS (“Bionic”)

Installation support for Ubuntu 18.04 LTS ("Bionic") has now ended. Updated images for the ThousandEyes Virtual Appliance (TEVA), Intel NUC, Raspberry Pi 4, and Docker for Linux have been released based on Ubuntu 20.04 LTS ("Focal"). We have also updated the custom appliance generation to utilize the newest images. From January 31st, 2023 onwards, you will see failures if you attempt to deploy new agents on Ubuntu 18.04 LTS. Please ensure you are using the latest images available for new agent deployments.

As noted in our Ubuntu Linux Support Lifecycle documentation, Ubuntu 18.04 LTS ("Bionic") will enter the End of Support period on April 30th, 2023 and End of Life on June 30th, 2023. As updated images are now available, customers who are interested in using the agent cluster method to upgrade agents can do so by following the documentation available here: Replacing an Enterprise Agent Using the Agent Clustering Method.

We expect to ship a pathway for customers to perform automated in-place upgrades from Ubuntu 18.04 LTS-based appliances to Ubuntu 20.04 LTS by the end of February 2023.


Endpoint Agent Client 1.150.1

TCP Tests Renamed and On By Default

We have renamed "TCP Network Tests" to "Extended Network Tests" to better reflect both the current feature and future functionality.

In addition, as previously announced, the default Windows Installer (MSI package) will now include the Extended Network Tests (TCP Tests) by default. This option can be manually deselected during installations or removed with a switch. For more information on Endpoint Agent command line options, see Endpoint Agent Installation Reference.

ASN Endpoint Agent Information Available via the Endpoint API

The Endpoint API has been extended to include ASN information. Similar to the VPN data, users will now be able to get ASN information in the Agent Details and the Endpoint Test Data API endpoints.

This extension provides users with more information to, for example, identify the ISP a set of agents are connected to via the API. For more information, see the developer documentation related to Endpoint Agents and Endpoint Test Data.

Webapp Query Update

The alert ID format was updated from a numeric value to a 128-bit UUID for both new and existing alerts.

This change affects how alerts are identified in the UI, particularly in the alert list and alert history pages. Additionally, the new UUID value will be displayed in the "id" field of APIs and can be used to search for alerts in place of the current "alertId" field.

The numeric ID value will remain visible in dashboards. This value can be used to search for alerts, and the results will contain alerts associated with the new UUID.

Browser session alerts do not currently support the UUID format, and will continue to display the numeric ID.

New Cloud Agents

New Cloud Agents have been added to the following locations:

  • Kuala Lumpur, Malaysia (Telekom Malaysia)

  • Kuala Lumpur, Malaysia (Telekom Malaysia) (IPv6)

  • Saskatoon, Canada (Saskatel)

  • Saskatoon, Canada (Saskatel) (IPv6)

  • Washington, DC, USA

  • Washington, DC, USA (IPv6)

For a full list of Cloud Agents, see ThousandEyes Cloud Agent Locations.

Minor Enhancements

  • The ability to create new AppDynamics integrations and edit the existing AppDynamics integrations will no longer be available in the Alert Rules page. To create and edit the AppDynamics integration, use the Alerts > Integrations page.

Removed Features

Agent Level SSL Setting for Browser Tests

With the addition of the test level setting for SSL verification introduced in October, 2022, the agent level SSL verification setting has been removed.

If your organization needs to disable SSL verification, use the Verify SSL Certificate Setting in Advanced Options on the test level.

2023-02-02 Bug Fixes

  • An issue that was preventing some embedded dashboard widgets from properly loading has been resolved.

  • An issue was found where an incorrectly colored directional arrow for improving or worsening performance was displayed for some metrics in the test table widget. For example, when Response Time was increasing, an upward green arrow was displayed instead of an upward red arrow. This was caused by a bug in the UI, and has been resolved.


Update to Alert ID Format

After February 27th, 2023, the alert ID format will be updated from a numeric value to a 128-bit alphanumeric UUID for both new and existing alerts. This change affects how alerts are identified in the UI, particularly for the Active Alerts and Alert History pages.

This change impacts your incoming webhooks, which will display the alert ID in the new UUID format. No modifications are necessary for the ThousandEyes webhook setup. However, if you have been storing the alert ID string and cannot accommodate a 128-bit value, or if your webhook receiver does not support the new format, it is highly recommended to verify compatibility with the new format and take any necessary actions in the tool that you use to accept webhooks from ThousandEyes.

Browser session alerts do not currently support the UUID format, and will continue to display the numeric ID.

Additionally, the UUID value has been added to the API as the new id field. This can be used to search for alerts.

The existing alertID field will be deprecated in the future. Currently, both fields can be used, and so there is no immediate impact to tools that use the API to pull alert information.


New Endpoint Local Network Metrics

The following Endpoint Agent local network metrics are now available in dashboards:

  • Signal Quality

  • Throughput

  • Retransmission Rate

  • Roaming Events

  • Channel Swapping Events

Device Limit for Topology View

We have implemented a 250-device limit for the Topology view in Devices > Views to ensure the view is rendered before the browser becomes unresponsive. For more information on devices, see Using the Device Layer View.

rDNS Lookups for Public IP Addresses

Local rDNS lookups can now be configured for Enterprise Agents. This will support customer environments where publicly routable IP addresses are assigned to internal systems and split-horizon DNS is used. This ensures that the names shown in the path visualization will match your internal view of DNS. For more information, see Configuring rDNS Lookups for Enterprise Agents.

NTP Changes for ThousandEyes Virtual Appliances

We have changed the default NTP server used by the ThousandEyes Virtual Appliance from for the system and for the agent to using for both the system and agent. By changing this default server, we ensure that both the system and agent are using the same time source, and that IPv6 dual-stack is supported by default.

Changing the configured NTP server in the web UI replaces the default for both the system and the agent.

New Cloud Agents

New Cloud Agents have been added to the following locations:

  • Jakarta, Indonesia (PT Telkom)

  • Jakarta, Indonesia (PT Telkom) (IPv6)

  • Manchester, England (Sky)

  • Manchester, England (Sky) (IPv6)

  • Mexico City, Mexico (IPv6)

  • Toronto, Canada (Beanfield)

  • Toronto, Canada (Beanfield) (IPv6)

  • Washington, D.C., USA (Comcast)

  • Washington, D.C., USA (Comcast) (IPv6)

For a full list of Cloud Agents, see ThousandEyes Cloud Agent Locations.

Minor Enhancements

2023-02-15 Bug Fixes

  • An issue in the Endpoint Agent Labels dashboard where the Currently Matching Agents column was not correctly displaying the actual number of agents associated with each label has been resolved. All labels were correctly associated with agents, but agents that used the Not In operator were not correctly displayed in the Agent Labels table.

  • An issue where several instances of scheduled Endpoint tests were not correctly aggregated, resulting in multiple instances with the same name being created on the Agent Views page, has been resolved.

  • An issue that prevented some default dashboards from loading correctly has been resolved.


Updating Alert ID to a 128-Bit Alphanumeric UUID

Previously, we announced that the alertID field in the API would be deprecated and a new id field would be introduced. However, we have decided to keep the alertID field to better accommodate customers transitioning their infrastructure.

On May 1st, 2023, we will be updating the data type of the alertID field in the v6 and v7 API response payload of active alerts and alert details from an integer to a string. This modification is necessary to accommodate the new 128-bit alphanumeric alert UUID. The update will not affect the functionality of the alertID field, but it will change the format of the response, which may impact how customers receive our alert API data.

To prepare for this change, we advise you to review any API scripts that you run to pull alert data. You should update your code to modify the data type of the alertID field from integer to string before May 1st, 2023.

The API-related content has been removed from the previous changelog entry to avoid confusion.

New Alert List UI

Starting on March 1st, 2023, and continuing until May 1st, 2023, we will begin to introduce a new UI for the Alert List page in phases. The updated UI is designed to make information more easily accessible and organized, with features such as resizable columns and a paginated side panel to display location alerts. The new UI will also allow users to search using both the old numeric and the new UUID alert ID formats. These changes will improve the user experience and make it easier to navigate through alerts.

This rollout will be automatic, and requires no action from customers.


Ubuntu 20.04 Upgrade Instructions Update

As previously reported, Ubuntu 18.04 LTS ("Bionic") will enter the End of Support period on April 30th, 2023, and End of Life on June 30th, 2023. Instructions for the upgrade process for single agents, bulk agents, and agents using proxies will be published alongside the in-place upgrade release on March 6th, 2023 PST.

These instructions are for ThousandEyes physical and virtual appliances. For information on upgrading other types of Enterprise Agents, see Upgrading Operating Systems for Enterprise Agents.

For additional questions, please reach out to Customer Success or Support.

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