USB Version 1.5.0 (June 16, 2025) - Release Notes#
Simplicity SDK Version 2025.6.0
Silicon Labs’ efficient USB device stack offers versatile, easy-to-use USB connectivity ideal for IoT projects, including communication between network co-processors and hosts.
Click here for earlier releases.
Release Summary#
Key Features | API Changes | Bug Fixes | Chip Enablement
Key Features#
Underlying platform changes only.
API Changes#
None.
Bug Fixes#
None.
Chip Enablement#
None.
Key Features#
New Features | Enhancements | Removed Features | Deprecated Features
New Features#
None.
Enhancements#
Underlying platform changes only.
Removed Features#
None.
Deprecated Features#
None.
API Changes#
New APIs | Modified APIs | Removed APIs | Deprecated APIs
New APIs#
None.
Modified APIs#
None.
Removed APIs#
None.
Deprecated APIs#
None.
Bug Fixes#
None.
Chip Enablement#
None.
Application Example Changes#
New Examples | Modified Examples | Removed Examples | Deprecated Examples
New Examples#
None.
Modified Examples#
None.
Removed Examples#
None.
Deprecated Examples#
None.
Impact of Release Changes#
Impact Statements | Migration Guide
Impact Statements#
None.
Migration Guide#
None.
Known Issues and Limitations#
None.
Using This Release#
What's in the Release? | Compatible Software | Installation and Use | Help and Feedback
What's in the Release?#
Compatible Software#
| Software | Compatible Version or Variant |
|---|---|
| Simplicity SDK | 2025.6.0 |
| Simplicity Studio | 5.11.0 |
| Simplicity Commander | 1.18.2 (provided with Simplicity Studio) |
| GCC (The GNU Compiler Collection) | 12.2.1 (provided with Simplicity Studio) |
| IAR Embedded Workbench for ARM (IAR-EWARM) | 9.40.1 (provided with Simplicity Studio) |
Installation and Use#
To kick start your development see our:
For information about Secure Vault Integration, see Secure Vault.
To review Security and Software Advisory notifications and manage your notification preferences:
Log in with your account credentials.
Click your profile icon in the upper-right corner of the page.
Select Notifications from the dropdown menu.
In the Notifications section, go to the My Product Notifications tab to review historical Security and Software Advisory notifications
To manage your preferences, use the Manage Notifications tab to customize which product updates and advisories you receive.
For recommended configuration settings, see here.
To learn more about the software in this release, dive into our online documentation.
Help and Feedback#
Contact Silicon Labs Support.
To use our Ask AI tool to get answers, see the search field at the top of this page.
Note: Ask AI is experimental.
Get help from our developer community.
SDK Release and Maintenance Policy#
See our SDK Release and Maintenance Policy.