# ThinLinc 4.20.0 beta

**URL:** <https://community.thinlinc.com/t/thinlinc-4-20-0-beta/1811>\
**Category:** Blog\
**Tags:** release, beta, thinlinc\
**Created:** [28 November 2025 17:38 UTC](https://community.thinlinc.com/t/thinlinc-4-20-0-beta/1811 "2025-11-28T17:38:05Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![samuel](https://dub1.discourse-cdn.com/flex005/user_avatar/community.thinlinc.com/samuel/32/335_2.png) [@samuel](https://community.thinlinc.com/u/samuel)\
**Post date:** [28 November 2025 17:38 UTC](https://community.thinlinc.com/t/thinlinc-4-20-0-beta/1811/1 "2025-11-28T17:38:05Z")

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# ThinLinc 4.20.0 beta available for testing

The next release of ThinLinc is almost ready. Before the official launch of version 4.20.0, we’re making a beta build available for public testing. This beta includes over 100 fixes and improvements. Some of the most prominent changes are:

- ThinLinc’s web-based services, Web Access and web administration, have  
both been overhauled to make sure they work well behind reverse HTTP  
proxies, even in complex cluster configurations. This includes making  
sure that the correct client IP address is used in logs and when  
authenticating.

- The ThinLinc client now remembers previously used servers and will  
offer suggestions in the server name field, making it easier to switch  
between multiple ThinLinc installations.

- ThinLinc Web Access can now be customized with a custom logo, page  
title, and background image, to give end users a familiar experience  
when accessing the system. The settings can also be conveniently  
configured and previewed through the ThinLinc web administration  
interface.

- 32-bit applications are no longer fully supported in a ThinLinc  
session. Base functionality will be available on a “best effort”  
basis, but full functionality requires upgrading to 64-bit  
applications.

- The ThinLinc client no longer supports 32-bit Windows. A 64-bit  
Windows installation is now required. The ThinLinc server remains  
backwards compatible with older clients, for those users who cannot  
upgrade in the near future.

You can find the download links and full release notes here: [ThinLinc Beta Release | ThinLinc by Cendio](https://www.cendio.com/thinlinc/download/beta)

As always, please keep in mind that this is a pre-release version and not recommended for critical production environments.

Let us know what you think in the comments below. If you run into any hiccups or unexpected behavior, please report it!