What's new in QLM v20 and upgrade procedure

QLM v20 was released on April 12, 2026.

Quick License Manager (QLM) v20 is a foundational release focused on modernizing the core architecture of the product to ensure long‑term stability, performance, and future innovation.

While QLM v20 does not introduce a large set of new end‑user features, it represents a major technological leap. All QLM server components have been fully migrated from .NET Framework 4.x to .NET 10. This was a significant engineering effort that positions QLM on a modern, fully supported platform and enables us to evolve the product using the latest Microsoft technologies for years to come.

In addition, the QLM Portal has been completely rewritten using modern frameworks (Blazor and DevExpress). This rewrite delivers improved usability, a cleaner user experience, and better overall performance, while laying the groundwork for future enhancements.

As with every major release, backward compatibility is fully maintained. Existing customers can upgrade with confidence, and QLM v20 server components can be installed side‑by‑side with QLM v1x server components, allowing for a smooth and controlled transition. However, all new server features added following this release will only be available when using the new URLs. Clients connecting to the old URLs will not have access to new features.

QLM v20 is an investment in the future of the platform—focused on modernization today so we can deliver faster innovation tomorrow.

Important Changes in v20

License Server

The QLM License Server and all related server components have been upgraded from .NET Framework 4.6 to .NET 10. This is a significant architectural change that affects the License Server URLs used for communication.
New QLM License Server URL
- The main URL to the QLM License server has changed from:
  - http://localhost/Qlm/QlmLicenseServer/qlmservice.asmx
  to
  - http://localhost/Qlm/QlmLicenseServerNetCore/api/v1/QlmApi
Instructions for redirecting the old License Server URL to the new URL are provided below and should be implemented to ensure backward compatibility. If you host your own License Server, review the upgrade instructions carefully before upgrading.
All integrations must be updated to use the new License Server URL.
The QLM Portal has been completely rewritten using DevExpress/Blazor and .NET 10, delivering improved performance, maintainability, and user experience.
The QLM Agent Windows Service now uses .NET 10. After installing QLM v20, you will need to reconfigure the credentials of the user account running the QLM Agent Windows Service.
PayPal integration If you are using PayPal, you must update the IPN URL to point to the new License Server endpoint (details provided below).
E‑commerce integrations All e‑commerce integrations must be updated to use the new License Server URL.
Database security requirement (hosted License Server only) Before upgrading, the QLM database login must have the db_securityadmin role. You can grant this role using the following command (replace qlm_user as needed):

    SQLEXEC sp_addrolemember N'db_securityadmin', N'qlm_user'

Azure integration The procedure to integrate QLM with Azure has changed. Please refer to the latest documentation before upgrading. If you are upgrading a v19 installation, we recommend that you install the v20 App Services in parallel with the existing v19 App Services. If you do not perform a parallel installation, you will need to either update all existing clients to connect to the new URL or set up a redirect from the v19 License Server to the v20 License Server.
Authentication framework QLM authentication now uses the Microsoft Identity framework, replacing ASP.NET Membership.
Disaster Recovery Site
- Effective immediately, when hosting your License Server with Soraco, the DR site will only host the License Server component. The QLM Self Help, QLM Portal and QLM Customer Portal will not be available on the DR site.
- The qlmredirect.xml must be updated with new entries for the QLM v20 License Server. See detailed instructions below.

Client Side

Most client side QLM components now use .NET 10.
The QLM License Wizard XML settings file must be updated to reflect the new URL.

.NET Support

The QlmLicenseLib.dll is now available for .NET4, .NET6, NET7, .NET8, .NET9, and .NET 10.
The QlmControls.dll is now available for .NET4, .NET6-Windows, .NET7-Windows, .NET8-Windows, .NET9-Windows, and .NET10-Windows.

New Requirements

The QLM Management Console now requires .NET 10 (requires Windows 10 or higher).
The QLM Management Console and the QLM Portal now reference DevExpress 25.2.5.
New License Server requirements:
- You must install the .NET 10 Hosting Bundle 10.0.5 or greater
- You must install Microsoft OLE DB Driver for SQL Server v19
- You must install Visual C++ Redistributables for x86 and x64 (for Visual Studio 2017)

Documentation

The QLM Documentation has moved to: https://docs.soraco.co

Upgrade Procedure

To upgrade to QLM v20, you must first install the QLM Management Console on your client system by running qlmsetup20.exe. To determine if you are eligible for a v20 upgrade, you may contact us or click the About tab.

If we are hosting your QLM License Server, contact us to upgrade the License Server. If you are hosting your own License Server, you can upgrade the License Server as described in the next sections.

License Server Changes

The QLM v20 License Server can be installed side-by-side with the QLM v19 or earlier License Server.

Automated Upgrade

If you originally installed QLM using QlmLicenseServerSetup.exe, running the latest version of QlmLicenseServerSetup.exe will automatically install QLM v20 License Server side‑by‑side with your existing QLM v1x installation.

This allows you to upgrade safely without disrupting your current environment.

New URLs After Installation

After the QLM v20 License Server is installed, the following URLs will be available (replace localhost with your server name or domain):

QLM License Server

http://localhost/Qlm/QlmLicenseServerNetCore/api/v1/QlmApi

QLM Self Help

http://localhost/Qlm/QlmCustomerSiteNetCore

QLM Portal

http://localhost/Qlm/QlmPortalNetCore/QlmPortal

QLM Customer Portal:

http://localhost/QlmCustomerPortalNetCore/qlm-portal-app

Backup Before Upgrading (Strongly Recommended)

Before running the upgrade, always back up both your QLM site and database:

Site backup Make a copy of all existing QLM License Server folders.
Database backup Perform a standard SQL Server backup of the QLM database.

These backups allow you to restore your environment quickly if necessary.

Required Post‑Installation Step: Database Schema Upgrade

Once the QLM v20 server components are installed, you must upgrade the database schema:

Launch the QLM Management Console
Go to the Manage Keys tab
Click Sites and select your site
Click Upgrade DB Schema

Manual Upgrade

QLM License Server Upgrade

Launch the QLM Management Console
Go to the Manage Keys tab, click Sites, select your site, then click Copy and set the name of the v20 License Server
In the Primary Site field, set the URL to (replace localhost with the name of your server/domain): http://localhost/Qlm/QlmLicenseServerNetCore/api/v1/QlmApi
Go to the Deployment tab and set the information associated with your License Server (see screenshot below)
Click "Update Config Files"
Copy all the files located in %Public%\Public Documents\Quick License Manager\DeployToServer\ to your server, under the c:\inetpub\wwwroot\Qlm
On your server, in IIS, create the Application Pools below. When creating the Application Pool, select the option: No Managed Code.
1. QlmLicenseServerNetCore (only required if you do no want to redirect from your QLM v1x License Server to the QLM v20 License Server)
2. QlmCustomerSiteNetCore
3. QlmPortalNetCore
4. QlmCustomerPortalNetCore
In IIS, expand the Default Web Site node and locate the QLM virtual directory
Right mouse click QlmLicenseServerNetCore and select Convert to Application. When prompted to Add the Application, you have 2 options:
1. If you want to redirect your QLM v1x customers to QLM v20, set the same Application Pool as the one currently used for QLM v1x.
2. If you do not want to redirect, set the Application Pool to QlmLicenseServerNetCore.
Right mouse click QlmCustomerSiteNetCore and select Convert to Application. When prompted to Add the Application, set the Application Pool to QlmCustomerSiteNetCore
Right mouse click QlmPortalNetCore and select Convert to Application. When prompted to Add the Application, set the Application Pool to QlmPortalNetCore
Right mouse click QlmCustomerPortalNetCore and select Convert to Application. When prompted to Add the Application, set the Application Pool to QlmCustomerPortalNetCore
Right mouse click QlmCustomerPortalNetCore /qlm-portal-api and select Convert to Application. When prompted to Add the Application, set the Application Pool to QlmCustomerPortalNetCore
Right mouse click QlmCustomerPortalNetCore /qlm-portal-app and select Convert to Application. When prompted to Add the Application, set the Application Pool to QlmCustomerPortalNetCore
Once the License Server is updated, start the QLM Management Console, go to Sites and click on Upgrade Database Schema.

Redirection from old URL to new URL

If you are upgrading from QLM v19 or earlier to QLM v20, you can configure the old license server to redirect to the v20 License Server by adding some entries to the QlmLicenseServer\web.config file.

In order to perform the redirect, you must first install the URL Rewrite module which is available here.

You must then update the legacy QlmLicenseServer\web.config as follows (note that the system.webserver section exists already so you should just add the relevant URL Rewrite section):

<system.webServer>
	<!-- Rewrite Rules to redirect to .net core -->
	<rewrite>
		<rules>
			<rule name="Rewrite ASMX to Core API" stopProcessing="true">
				<match url="^qlmservice\.asmx(.*)$" ignoreCase="true" />
				<action type="Rewrite" url="/Qlm/QlmLicenseServerNetCore/api/WebService{R:1}" appendQueryString="true" />
			</rule>
		</rules>
	</rewrite>
</system.webServer>

Important: when redirecting from an old License server to a v20 license server, the old license server and the v20 license server must use the same Application Pool.

PayPal Integration

The URL to the QLM PayPal integration has changed from:

http://localhost/Qlm/QlmLicenseServer/qlmpaypalipn.aspx

To:

http://localhost/Qlm/QlmLicenseServerNetCore/api/PayPalIpn/notify

Disaster Recovery Redirection

The qlmredirect.xml that is used by the QLM Disaster Recovery framework needs to be updated to add new entries for the QLM v20 License Server as per the example below:

<QlmRedirection>
<activeUrl>https://qlm4.net/qlmdemo/qlmlicenseserver/qlmservice.asmx</activeUrl>
<drUrl>https://qlmdr4.net/qlmdemo/qlmlicenseserver/qlmservice.asmx</drUrl>
<activeNetCoreUrl>https://qlm4.net/qlmdemo/QlmLicenseServerNetCore/api/v1/QlmApi</activeNetCoreUrl>
<drNetCoreUrl>https://qlmdr4.net/qlmdemo/QlmLicenseServerNetCore/api/v1/QlmApi</drNetCoreUrl>
</QlmRedirection>

Source Code

To upgrade your source code to QLM v20:

If you are using the QLM License Wizard, you must regenerate the XML Settings file and use the new URL when configuring the wizard.
You must update your project to reference to QLM v20 binaries.

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