ETS for the Web 2026.1 release notes

Release date: February 10, 2026

Here's what's new in ETS for the Web 2026.1. You can find the applicable system requirements here.

To view release notes, system requirements, and product guide PDFs for supported versions of ETS for the Web, see ETS for the Web previous versions. To view release notes for multiple versions and multiple SolarWinds Platform products on a single page, see the release notes aggregator.

ETS for the Web runs on the SolarWinds Platform (self-hosted). ETS for the Web release notes include the updates from the SolarWinds Platform (self-hosted).

Attention ETS for the Web customers

SolarWinds Observability Self-Hosted 2026.1 includes changes to improve communication between services on polling engines. Because of these changes, you must open TCP port 17734 on the main polling engine to allow inbound traffic from any servers that host additional polling engines, additional web servers, or high availability servers.

If port 17734 is not open on the main polling engine, other servers in your SolarWinds Observability Self-Hosted deployment could become unavailable. See the Known issues below for more information.

New features and improvements in ETS for the Web

There were no features or improvements added for ETS for the Web in this release.

New features and improvements in SolarWinds Platform

New All Active Alerts page

All Active Alerts page has been updated to the new framework. You can customize columns or edit the query used to build the table with custom entries.

Custom banners

Users can define customized in-product banners shown at the top of each page in the web console. These banners can be used for the following purposes:

Notification of scheduled upgrades
Classification of government data
Identification of deployments when multiple instances are deployed for a single customer
Notification of a known issue or outage

Maps

This release introduces several enhancements to map editing and management, making it easier to customize and work with Intelligent Maps.

Users can bulk edit multiple connections at once.
Users can import Network Atlas maps with linked backgrounds into Intelligent Maps.
Users must confirm that they want to remove a custom topology item before it is removed.
Users can see an icon and color indicator for text that contains hyperlinks.
Users can see hotkeys for actions in the More menu.
Users can hide autogenerated topology connections on maps.

Updated Maintenance Windows

Maintenance Windows have been improved:

Groups can now be assigned to maintenance windows.
End after X occurrences
Admins can make reasons mandatory for both scheduled and ad-hoc maintenance windows.

Feature Adoption

The Feature Adoption section in My Deployment, which helps you enable and expand the use of key product features, now includes suggestions for:

Gaining deeper insights into virtualization
Monitoring virtual servers
Monitoring storage arrays
Identifying unknown traffic
Monitoring configurations
Monitoring DNS and DHCP servers
Monitoring call quality
Monitoring configuration policies

Integrations

ServiceNow integration now supports OAuth based authentication.

SolarWinds Platform now integrates with SolarWinds Incident Response (earlier known as Squadcast). In this version, the integration is unidirectional - alerts from SolarWinds Platform are forwarded to SolarWinds Incident Response. Any acknowledgments on the incident response side are not reflected in SolarWinds Platform. Users can do additional correlation and suppress alerts using their Incident Response instance.

PerfStack metrics format change

PerfStack metrics now have a short, user-friendly unit format to simplify reading and understanding PerfStack charts. This helps with translating large numbers into more readable language, such as using kb, Mb, Gb instead of bytes.

Node status indicates polling issues

Node status now exposes any problem with failing WMI, WinRM, or SNMP polling when ICMP connection is working, including credential issues.

Updated MAC Organizationally Unique Identifier (OUI) data

The MAC OUI data has been updated to provide more accurate vendor details when analyzing MAC addresses in the SolarWinds Platform.

Support for online upgrades to the previous version

Online upgrades now include the option to upgrade to the previous version. For example, if you're on 2025.4.1 or earlier and 2026.1 becomes available, the Updates page lists 2025.4.3 and 2026.1 as upgrade options.

If the previous version is not displayed, click Update for the latest version, cancel the upgrade session, and then reload the Updates page.

Fixed CVEs

At SolarWinds, we prioritize the swift resolution of CVEs to ensure the security and integrity of our software. In this release, we have successfully addressed the following CVEs.

Third-party CVEs

CVE-ID	Vulnerability title	Description	Severity
CVE-2025-9232	OpenSSL HTTP client API functions DoS Vulnerability	An application using the OpenSSL HTTP client API functions may trigger an out-of-bounds read if the 'no_proxy' environment variable is set and the host portion of the authority component of the HTTP URL is an IPv6 address. Impact summary: An out-of-bounds read can trigger a crash which leads to Denial of Service for an application.	5.9 Medium
CVE-2025-9230	OpenSSL CMS messages DoS Vulnerability	An application trying to decrypt CMS messages encrypted using password based encryption can trigger an out-of-bounds read and write. Impact summary: This out-of-bounds read may trigger a crash which leads to Denial of Service for an application.	7.5 High

Fixed customer issues

Case number	Description	Platform product
02058597	*The Npcap library has been upgraded to version 1.85, which fixes a known issue with Windows Server 2016. This fix is also included in the 2025.4.3 release.	Platform
02048859, 02058434	*When you access the Manage Nodes page from an additional web server, select multiple nodes, and then select Unmanage Now or Mute Alerts Now, the action is applied to all selected nodes (not just some of them).	Platform
02028685	*During an upgrade, a large number of items under the `C:\ProgramData\SolarWinds` and `C:\Program Files (x86)\SolarWinds\Agent` directories no longer results in agents failing to be updated.	Platform
02053878	*A custom property with an underscore in the name no longer causes the All Groups widget to display errors in modern dashboards.	Platform
N/A	*An issue that prevented all alert severities to be shown in the alerts widget on the new modern dashboard Home Summary has been fixed.	Platform
02021822, 02030129, 02035052, 02036906, 02038463	Modern Dashboard KPI widgets automatically refresh data on the configured refresh interval.	Platform
02030578, 01961511, 01965096	Customers with restricted access privileges no longer experience access denied errors due to `Microsoft.Data.SqlClient.SNI.dll` being loaded under the impersonated account instead of the system account.	Platform
02011517	Hiding a custom edge in Intelligent Maps no longer hides both connections between nodes and interfaces.	Platform
02021309	*The error message displayed when a high available pool member is no longer available has been updated to be clearer.	Platform
00903841, 00584773, 00174609, 00328285, 00601814, 02011869	When managing entities, changes in the Edit Properties dialog no longer cause the Polling Method property to be lost.	Platform
01816357, 01801645	SolarWinds Administration service auto-update no longer fails.	Platform
01990774, 01995554, 02030109, 02035573	*The Configuration Wizard reliably detects SQL Server Availability Groups.	Platform
02009240, 02020678	Creating new HA pools in systems other than EN-US works as expected.	Platform
01975077, 01909120	Applying limitations in big environments no longer decreases the SolarWinds Platform Web Console performance.	Platform
01760628	An issue has been fixed that caused the HTTP proxy settings to fail when Use Default OS Settings was configured as the source.	Platform
01978146	Hidden links are no longer displayed in the Intelligent Maps entity explorer.	Platform
N/A	Cloud dashboards are displaying the correct count of active alerts.	Platform
01979400, 01974410	An issue that caused CPU WMI polling to stop working for Windows 2008 R2 and earlier was fixed.	Platform
01968672	Updated polling logic ensures malformed `PollingController.db` files are always auto-recreated, improving reliability and reducing the risk of polling failures.	Platform
01893113, 01960987, 01980264, 01988371, 01992965	Additional checks in Active Diagnostics were added to capture when the SolarWinds Platform Web Console SSL certificate is incorrectly configured.	Platform
01958055, 02007668	The issue with website crashes caused by problematic custom queries and optimizing database performance was fixed.	Platform
01986456	The included Microsoft .NET 8.0 runtimes were upgraded to the latest versions.	Platform
01981129, 01958577, 01995892	An issue where the `Reboot pending` status is not cleared from agents, causing confusion and polling issues, was fixed.	Platform
01986010	An issue was fixed that caused audit events to be generated only for changes to the `IP_Address` property of nodes via API, while other properties like `IPAddress` and `IP` did not trigger audit logs.	Platform
01748999, 02010493	The issue related to JobEngine jobs with future execution times caused by system time jumps, primarily in VMware environments, was fixed.	Platform
01890199	The issue where users with insufficient permissions did not receive an error message when attempting to proceed in the Configuration Wizard was fixed.	Platform
01011052	*Accounts can now be converted between individual and Windows when the account user names are the same.	Platform
01961749	Database stability issues, including recurring query timeouts, blocking, and orphaned volumes, were fixed.	Platform
01797614, 01912259	The issue related to editing group accounts across multiple browser tabs was fixed.	Platform
01764299, 01823713, 01918573, 01939263, 02018768, 02059217, 02027158, 02042611	*After a SolarWinds Observability Self-Hosted license is applied in a deployment that uses ICMP monitoring, messages no longer incorrectly report that the license limit has been reached. This fix ensures free ICMP-only nodes and paid nodes are counted correctly after license conversion, eliminating false license saturation errors.	Platform
00763611, 00765163, 01641392, 01741880, 01753713, 01899471, 01939288, 01945078, 01994080, 02014878	An option was added to use an alternative calculation of memory volumes on Linux nodes that excludes buffered and cached memory from used space for SNMP-polled Linux nodes.	Platform
01616820, 01617205, 01796280, 01886117, 01959304	Node details such as machine type, vendor, and description are no longer missing or shown as Unknown after changing the polling method from ICMP to Agent on Linux nodes.	Platform
01573310, 01654703, 01569218, 01687332	The issue where the installer cannot verify the manifest's signature when the user's TEMP path contains a `$` symbol was fixed.	Platform
01939802	An issue was fixed that caused higher-tier evaluations to not start successfully after removing or hiding previous evaluation licenses, despite the user interface indicating success.	Platform
01191493, 01294081, 00282808, 01991303	The issue with duplicate volumes being created when a device with multiple volumes sharing the same serial number is rediscovered and scheduled discovery is run was fixed.	Platform
01191634, 01799728, 01994080	The issue with incorrect memory values displayed in the Average CPU Load & Memory Statistics widget was fixed.	Platform
N/A	An issue was fixed that caused sensitive information to be displayed in logs.	Platform
N/A	The issue related to device name changes in automation scripts was fixed.	ETS-Web

*This fix was added after the RC release.

Installation or upgrade

For information about installing Engineer's Toolset, see the ETS Installation Guide. After installation, use the ETS Getting Started Guide to get started fast.

Use the SolarWinds Orion Installer to upgrade ETS for the Web and your entire Orion deployment (all Orion Platform products and any scalability engines).

If you are upgrading from ETS for the Web 2019.2 or later, you can upgrade your entire Orion deployment from the My Orion Deployment page in the Orion Web Console. Downloading the Orion Installer is no longer necessary.

For new SolarWinds Platform deployments, download the installation file from the product page on https://www.solarwinds.com or from the Customer Portal. For more information, see Get the installer.

To activate your product in an existing SolarWinds Platform deployment, use the License Manager.

For upgrades, go to Settings > My Deployment to initiate the upgrade. The SolarWinds Installer upgrades your entire deployment (all SolarWinds Platform products and any scalability engines).

For more information, see the SolarWinds Platform Product Installation and Upgrade Guide.

For supported upgrade paths, see Upgrade an existing deployment.

Known issues

Last updated: December 30, 2025

Additional web console and additional polling engines are unavailable, and the Orion Module Engine service repeatedly stops

If port 17734 is not open on your main polling engine to allow inbound traffic from other servers in your SolarWinds Observability Self-Hosted deployment, you could experience issues such as:

Scalability engines such as additional polling engines and additional web servers are unavailable.
The Orion Service Module stops frequently and must be manually restarted.
The Business Layer Log on a scalability engine includes messages such as:

gRPC error calling Feature Service on port 17734: Error starting gRPC call.

Resolution or workaround: Open TCP port 17734 on the main polling engine to allow inbound traffic from servers that host SolarWinds Observability Self-Hosted scalability engines. This includes additional polling engines, additional web servers, and high availability servers.

For more information, see Additional Website and Additional Polling Engines are Down After Upgrade to 2026.1 due to gRPC Error Calling Feature Service on Port 17734.

Upgrades fail when the Configuration Wizard attempts to create or update a configuration file

In some environments, the Configuration Wizard fails when attempting to create or update the sw.web.compression.config file.

Resolution or workaround: This issue will be fixed in a future release. Until then, complete these steps:

Open the following file in a text editor:

C:\ProgramData\SolarWinds\sw.web.compression.config

Update the contents of this file to the following:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <configSections>
        <section name="sw.web.compression" type="SolarWinds.Orion.Core.Common.Configuration.WebCompressionSection, SolarWinds.Orion.Configuration" />
    </configSections>
    <sw.web.compression>
        <settings>
            <add name="" level="4" enable="True" install="True" />
            <add name="static" level="9" />
            <add name="dynamic" />
            <add name="dynamic.IIS6" enable="False" />
        </settings>
    </sw.web.compression>
</configuration>

Save the file and rerun the configuration wizard.

URL-based filters in modern dashboards stopped working

Modern dashboards no longer recognize URL-based filters unless a global filter is explicitly configured on the dashboard.

Resolution or workaround: Use global filters. See Global filters on modern dashboards.

THWACK integration is broken

A new THWACK platform was introduced in 2025. This new platform does not support the API that SolarWinds Platform is using.

Resolution or workaround: Not available. See Shared Templates on Thwack is unable to reach thwack.com in SolarWinds Platform.

End of life

Version	EoL announcement	EoE effective date	EoL effective date
2024.1	February 2, 2026: End-of-Life (EoL) announcement – Customers on ETS for the Web version 2024.1 or earlier should begin transitioning to the latest version of ETS for the Web.	March 12, 2026: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for ETS for the Web version 2024.1 or earlier will no longer actively be supported by SolarWinds.	March 12, 2027: End-of-Life (EoL) – SolarWinds will no longer provide technical support for ETS for the Web version 2024.1.
2023.4	October 21, 2025: End-of-Life (EoL) announcement – Customers on ETS for the Web version 2023.4 or earlier should begin transitioning to the latest version of ETS for the Web.	November 20, 2025: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for ETS for the Web version 2023.4 or earlier will no longer actively be supported by SolarWinds.	November 20, 2026: End-of-Life (EoL) – SolarWinds will no longer provide technical support for ETS for the Web version 2023.4.
2023.3	October 21, 2025: End-of-Life (EoL) announcement – Customers on ETS for the Web version 2023.3 or earlier should begin transitioning to the latest version of ETS for the Web.	November 20, 2025: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for ETS for the Web version 2023.3 or earlier will no longer actively be supported by SolarWinds.	November 20, 2026: End-of-Life (EoL) – SolarWinds will no longer provide technical support for ETS for the Web version 2023.3.
2023.2	June 10, 2025: End-of-Life (EoL) announcement – Customers on ETS for the Web version 2023.2 or earlier should begin transitioning to the latest version of ETS for the Web.	July 10, 2025: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for ETS for the Web version 2023.2 or earlier will no longer actively be supported by SolarWinds.	July 10, 2026: End-of-Life (EoL) – SolarWinds will no longer provide technical support for ETS for the Web version 2023.2.
2023.1	February 11, 2025: End-of-Life (EoL) announcement – Customers on ETS for the Web version 2023.1 or earlier should begin transitioning to the latest version of ETS for the Web.	March 13, 2025: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for ETS for the Web version 2023.1 or earlier will no longer actively be supported by SolarWinds.	March 13, 2026: End-of-Life (EoL) – SolarWinds will no longer provide technical support for ETS for the Web version 2023.1.

See the End of Life Policy for information about SolarWinds product life cycle phases. To see EoL dates for earlier ETS for the Web versions, see ETS for the Web release history.

End of support

This version of ETS for the Web no longer supports the following platforms and features.

Widgets that display a THWACK feed

Widgets that display the most recent content from a THWACK page are no longer supported and are being removed from the Web Console. This includes widgets such as:

Recent NPM Posts
Latest Universal Device Pollers
Recent NetFlow Posts
Latest Application Templates
Recent NCM posts
Recent VNQM posts
Recent IPAM posts
Recent 10 Patch Manager Posts

To exchange information and share content with other SolarWinds users, visit thwack.solarwinds.com.

Deprecation notice

The following platforms and features are still supported in the current release. However, they will be unsupported in a future release. Plan on upgrading deprecated platforms, and avoid using deprecated features.

SolarWinds Platform Agent support for Windows Server 2008 R2, Windows 7

Windows Server 2008 R2 and Windows 7 reached End of Life and are no longer supported by SolarWinds Platform Agents. To continue monitoring them, consider switching the polling method to remote monitoring with WMI.

SQL Server 2016

SQL Server 2016 is deprecated as of 2025.2. It is still available and supported in the current release, but will be removed in a future release. Consider using SQL Server 2022 or later.

Network Atlas

Network Atlas is deprecated as of Orion Platform 2020.2. It is still available and supported in the current release, but will be removed in a future release. Deprecation is an indication that you should avoid expanded use of this feature and formulate a plan to discontinue using the feature. SolarWinds recommends that you start using Intelligent Maps in the SolarWinds Platform Web Console to display maps of physical and logical relationships between entities monitored by the SolarWinds Platform products you have installed.

Starting with 2024.2, you can import Network Atlas maps to Intelligent Maps. See Import maps.

Legal notices

This document may not be reproduced by any means nor modified, decompiled, disassembled, published or distributed, in whole or in part, or translated to any electronic medium or other means without the prior written consent of SolarWinds. All right, title, and interest in and to the software, services, and documentation are and shall remain the exclusive property of SolarWinds, its affiliates, and/or its respective licensors.

SOLARWINDS DISCLAIMS ALL WARRANTIES, CONDITIONS, OR OTHER TERMS, EXPRESS OR IMPLIED, STATUTORY OR OTHERWISE, ON THE DOCUMENTATION, INCLUDING WITHOUT LIMITATION NONINFRINGEMENT, ACCURACY, COMPLETENESS, OR USEFULNESS OF ANY INFORMATION CONTAINED HEREIN. IN NO EVENT SHALL SOLARWINDS, ITS SUPPLIERS, NOR ITS LICENSORS BE LIABLE FOR ANY DAMAGES, WHETHER ARISING IN TORT, CONTRACT OR ANY OTHER LEGAL THEORY, EVEN IF SOLARWINDS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

The SolarWinds, SolarWinds & Design, Orion, and THWACK trademarks are the exclusive property of SolarWinds Worldwide, LLC or its affiliates, are registered with the U.S. Patent and Trademark Office, and may be registered or pending registration in other countries. All other SolarWinds trademarks, service marks, and logos may be common law marks or are registered or pending registration. All other trademarks mentioned herein are used for identification purposes only and are trademarks of (and may be registered trademarks) of their respective companies.

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