Dell ThinOS 10.x 2502, 2505, 2508, and 2511 Release Notes

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Enhanced features

This table lists updated application packages that are in this release, along with their package names and a summary of enhancements.

Table 1. Updated package details for ThinOS 10.x 2511 upgrade release 1New package details for ThinOS 10.x 2511 upgrade release 1
Package Package name Enhanced features
Google_Chrome Google_Chrome_143.0.7499.169.301_T10.pkg Updated to version 143.0.7499.169.301 and includes a fix for the DSA-2026-056 vulnerability.
Amazon_WorkSpaces_Client Amazon_WorkSpaces_Client_2025.1.5526.236_T10.pkg Updated to version 2025.1.5526.236.
CI_Apps_Enabler CI_Apps_Enabler_29.1.3.125_T10.pkg Updated to version 29.1.3.125.
Citrix_Workspace_App Citrix_Workspace_App_25.08.10.111.163_T10.pkg Updated to version 25.08.10.111.163.

This table lists the ThinOS 10.x 2511 upgrade release build and the supported upgrade and conversion packages available with this release.

Table 2. Release build and package information for ThinOS 10.x 2511 upgrade release 1Updated ThinOS versions for ThinOS 10.x 2511 firmware upgrade
Release build details Supported package versions
ThinOS 10 release build version ThinOS10_2511_0380.iso
ThinOS 10 to ThinOS 10 upgrade package Root_upgrade_2511_10.0380_T10.pkg
ThinOS 9 to ThinOS 10 upgrade package Root_2511.10_0380_signed.pkg
Dell Hybrid Client (DHC) to ThinOS 10 conversion package DellHybridClient_Ubuntu_To_ThinOS10_conversion_2511_10.0380.tar.gz

The following updates have been in the current release to improve functionality and user experience:

Keyboard shortcut management

ThinOS 10.x supports disabling specific keyboard shortcuts using WMS or APT. This feature allows administrators to control end-user keyboard behavior for improved security and standardized input. Only standard alphanumeric keys are supported.

Supported Keys:

  • A–Z (alphabet keys)
  • 0–9 (numeric keys)
  • Shift + A–Z
  • Shift + 0–9
NOTE:Keyboard shortcuts that use Shift with special characters (for example, Shift + @, Shift + #) are not supported.

Go to WMS or APT > Advanced > Peripheral Management > Keyboard > Keyboard Settings, and configure the required shortcuts under Disable shortcuts.

BIOS Common Configuration

Starting with the ThinOS 10.x 2511 upgrade release, BIOS Common Configuration is introduced and can be managed through WMS or APT.

Go to WMS or APT > Advanced > BIOS Common Configuration.

NOTE:All the following options are available only if the platform BIOS supports the respective parameters.
Chassis Intrusion

Detects and reports chassis intrusion events to the system display during system boot.

Options:

  • Disable
  • Enable
  • Silent Enable (Default)
HTTPS Boot

Enables or disables HTTPs boot capability on the platform.

The default state is Enable.

UEFI Boot path security

Determines whether the system prompts for the BIOS Admin password when booting from a UEFI boot path (for example, from the F12 Boot Menu).

Options:

  • Never
  • Always
  • Always Expect Internal HDD
  • Always Expect Internal HDD PXE

The default state is Always Expect Internal HDD.

Function Lock

Controls the Function (Fn) key behavior on supported systems.

Options:

  • Disable
  • Enable (Default)

Function Lock is supported only on laptop platforms.

Function Lock Mode

Defines the default behavior of the function keys.

Options:

  • Enable Secondary (Default)
  • Disable Secondary

Proxy PAC URL share path

Starting with the ThinOS 10.x 2511 upgrade release, the Proxy PAC URL share path is supported through the WMS or APT configuration UI, enabling administrators to configure proxy settings centrally.

Go to WMS or APT > Advanced > Network Configuration > Proxy Settings > Enable Proxy > Enter Proxy Application List > Enable Proxy PAC URL and enter the URL.

PIV-enabled FIDO2 with NFC

Starting with the ThinOS 10.x 2511 upgrade release, it supports PIV-enabled smart cards with FIDO2 and NFC for authentication in the Chrome browser using WebLogin, enabling secure and modern passwordless authentication.

Go to WMS or APT > Advanced > Peripheral Management > FIDO2 Security Key > Enable NFC HID Bridge.

Upgrade from Windows 10 IoT to ThinOS 9.x and ThinOS 10.x

ThinOS supports a multistage upgrade path from Windows 10 IoT to ThinOS 9.x, and later to ThinOS 10.x. This upgrade path also applies to ThinOS 9.x Merlin–imaged devices, enabling a direct upgrade to ThinOS 10.x.

The firmware package WinIOT_ThinOS9_to_ThinOS10_Upgrade.pkg supports upgrading to ThinOS 10.x from:

  • Devices that are converted from Windows 10 IoT to ThinOS 9.x.
  • Devices imaged with ThinOS 9.x Merlin

For more information, see the latest ThinOS 10.x Migration Guide at Support | Dell.

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