Release date: 19 March 2026
Release notes Master Packager 26.1.9574
New features
Master Wrapper
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Add ability to upgrade PSADT 4.x packages to latest supported version in Master Wrapper.
MPDEV-2386 -
Add validation for Information URL.
MPDEV-2783 -
Add support for multiple detection types.
MPDEV-2805 -
Add confirmation dialog if installer is loaded multiple times.
MPDEV-2822

-
Display warning if PSADT script contains syntax errors before saving.
MPDEV-2850

-
Remove PSADT v3 default template.
MPDEV-2883- We have removed the PSADT v3 template from Master Wrapper because it is out of support. It’s time to upgrade to PSADT v4. Master Wrapper still allows you to open and edit existing PSADT v3 packages.
Master Packager Toolbox
-
Use AppList icons instead of Logo icons for MSIX packages in the Installed Apps page.
MPDEV-2780 -
Navigate user back to the root page when clicking on already active navigation menu item.
MPDEV-2784 -
Add support for multiple detection types.
MPDEV-2838 -
Use MSI product code detection when uploading an MSI to Intune.
MPDEV-2848
Master Packager
-
Remove Hide Predefined Folders context menu item.
MPDEV-2779 -
Refactor ExecutePowerShell custom action to c++.
MPDEV-2852
Master Packager Suite
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Require user to authenticate again when changing Azure Trusted Signing account name or profile name.
MPDEV-2265 -
Update apps to .NET 10 and update third party dependencies to latest.
MPDEV-2812 -
Maintain versions of predefined custom actions separately from the Master Package Suite.
MPDEV-2820 -
Add MSI property PACKAGE_TELEMETRY_ENABLED to allow package telemetry to be disabled during installation.
MPDEV-2874- We send anonymous package telemetry (such as name, version, and manufacturer metadata) to understand how we can improve our tools and help you package applications faster. You can disable this telemetry at any time via an MSI property.
Bugs fixed
Master Wrapper
-
Disabling “Welcome window” should not clear “Processes to be closed”.
MPDEV-2816 -
Signing is triggered anyways when user cancels save action in the file explorer.
MPDEV-2844 -
No/Cancel option on dialogs prompted when saving a project is sometimes incorrectly processed.
MPDEV-2851 -
Recently opened projects are displayed incorrectly when more than five projects have been opened and one of them has been deleted.
MPDEV-2872
Known issues
- If your license is no longer activated after the update, please check for the latest version in your Master Packager portal profile, or contact us at info@masterpackager.com and we will send you an updated license.




