Serv-U 15.5.2 release notes
Release date: July 8, 2025
Here's what's new in Serv-U File Server 15.5.2.
Learn more
- See the Serv-U release notes aggregator to view release notes for multiple versions of Serv-U on a single page.
- See Serv-U 15.5.2 system requirements to learn about prerequisites for running and installing Serv-U 15.5.2.
- See the Serv-U 15.5.2 Administrator Guide to learn how to work with Serv-U.
Attention Serv-U 15.5.2 customers
If you are upgrading to Serv-U 15.5.2 from a previous version of Serv-U, see the Known issues section below before upgrading. If you are performing a fresh installation, you can ignore this issue.
New features and improvements in Serv-U
Last updated:
Legacy web clients have been removed
Java-based Serv-U web client modules FTP Voyager JV and Web Client Pro have been removed from Serv-U as of version 15.5.2. They have been replaced by the Serv-U Client.
Security Password Strength Policy was updated
The Security Password Strength Policy for file share passwords was updated to enhance protection and align with industry best policies.
General improvements
- Functionality fixes
- Security improvements
Fixes
Last updated:
| Case number | Description |
|---|---|
| 01903463 | Serv-U now returns correctly formatted (escape character) custom paths. |
| 01861328 | Serv-U's email message IDs are accurately associated with emails, and email synchronization is working as expected. |
| 01680080 | Serv-U users are blocked from using an empty domain name, and the web console works as expected. |
|
01604854 01608147 01620091 01785712 01897440 |
The Serv-U start-up log now displays OS version numbers exactly as shown by Windows tools such as winver. However, OS product names may be generalized. |
| N/A | The font size issue in the domain setup wizard of embedded browsers has been adjusted so that the text now fits within the bounds of the panel. |
| N/A | Serv-U login activity is no longer excluded from logs when MFA is enabled rather than HTTPS. |
| N/A | Files uploaded to Serv-U via SSH-FTP now display expected file size rather than being reset to 0 bytes. |
Installation or upgrade
Last updated:
For new installations, you can download the installation file from the Serv-U product page on https://www.solarwinds.com or from the Customer Portal. For more information, see Install the SolarWinds Serv-U.
For more information about upgrades, see Upgrade Serv-U.
Known issues
Last updated: July 24, 2025
Users may encounter a '404 not found' error upon logging into Serv-U after upgrading to version 15.5.2
After upgrading to Serv-U 15.5.2 and attempting to log in, users may encounter a '404 not found error' as a result of the Default Web Client at the domain/user level having been set to the deprecated (legacy) web client.
Resolution or workaround: See this support article for workaround instructions to access the Serv-U 15.5.2 client home page.
End of life
Last updated:
| Version | EoL Announcements | EoE Effective Dates | EoL Effective Dates |
|---|---|---|---|
| 15.4.0 | April 17, 2024: End-of-Life (EoL) announcement – Customers on Serv-U 15.4.0 should begin transitioning to the latest version of Serv-U. | July 17, 2024: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for Serv-U 15.4.0 will no longer be actively supported by SolarWinds. | July 17, 2025: End-of-Life (EoL) – SolarWinds will no longer provide technical support for Serv-U 15.4.0. |
| 15.4.1 | October 16, 2024: End-of-Life (EoL) announcement – Customers on Serv-U 15.4.1 should begin transitioning to the latest version of Serv-U. | December 16, 2024: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for Serv-U 15.4.1 will no longer be actively supported by SolarWinds. | December 16, 2025: End-of-Life (EoL) – SolarWinds will no longer provide technical support for Serv-U 15.4.1. |
| 15.4.2 | April 15, 2025: End-of-Life (EoL) announcement – Customers on Serv-U 15.4.2 and earlier should begin transitioning to the latest version Serv-U. | July 15, 2025: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for Serv-U 15.4.2 and earlier will no longer be supported by SolarWinds. | July 15, 2026: End-of-Life – SolarWinds will no longer provide technical support for Serv-U 15.4.2 and earlier. |
| 15.5 | July 8, 2025: End-of-Life (EoL) announcement – Customers on Serv-U 15.5 should begin transitioning to the latest version of Serv-U. | October 8, 2025: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for Serv-U 15.5 will no longer be actively supported by SolarWinds. | October 8, 2026: End-of-Life (EoL) – SolarWinds will no longer provide technical support for Serv-U 15.5. |
See the End of Life Policy for information about SolarWinds product life cycle phases. To see EoL dates for earlier Serv-U versions, see Serv-U release history.
End of support
Last updated:
This version of Serv-U no longer supports the following platforms and features.
| Type | Details |
|---|---|
| Web Client modules | Java-based Serv-U web client modules FTP Voyager JV and Web Client Pro have been discontinued. They have been replaced by the Serv-U Client. |
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