Simplicity Installer - Silicon Labs Tools (SLT) Version 1.1.0 (Jan 22, 2026) Release Notes#

Welcome to the General Availability (GA) Simplicity Installer - Silicon Labs Tool (SLT), used to install and manage the full Simplicity development environment, including Simplicity SDKs and tools.

Release Summary#

Key Features#

Added in 1.1.0#

  • Added support for package-based delivery of Simplicity SDK 2025.12 for Simplicity Studio 6.1 and SLC 6.0.15, as part of the migration from a monolithic to a modular SDK architecture.

  • Added Installer version information on main page.

  • Enhanced the uninstall command with the --all option, more descriptive help, and improved behavior when no IDs are specified.

  • Improved package installation performance by enabling parallel downloads of Conan packages.

Bug Fixes#

Fixed in 1.1.0#

  • None

Chip Enablement#

  • This release supports Series 2 and Series 3 devices.

Removed/Deprecated Features#

  • None

Known Issues and Limitation#

UID

Issue or Limitation Description

Workaround (if any)

Restricted Access Support: Early Access and Controlled Access installations are not supported in this release.

Contact Sales for Restricted Access content (Alpha or NDA restricted)

Studio Shortcut (*): Studio launch shortcut is only available on the desktop.

None

Installation path (*): The installation path for the Package Manager is not selectable by the user.

None

Additional Bug Fixes#

Fixed in Studio 1.1.0#

UID

Issue Description

1564633

Fixed installer failures during full Studio 6 installs when MinGW detection caused errors in the UI installer.

1513272

PSRIRT - H1 reported #3334163 The Simplicity Studio development platform has a command execution vulnerability.