BaseOS | v3.1.0

With this release, the TDC‑E platform makes a significant architectural step forward by transitioning from the legacy L4M (Linux‑for‑Microservices) environment to the modernized Base OS foundation.
This migration represents a major evolution of the system software stack, enabling improved performance, enhanced security, a streamlined update mechanism and a unified runtime environment for next‑generation applications.

The new BaseOS delivers a cleaner separation between the operating system and application layers, supports containerized workloads more efficiently, and provides consistent interfaces through Control Center services. This shift lays the groundwork for long‑term maintainability, easier feature expansion, and a more robust developer experience across the entire TDC product family.

v3.1.0 - Release Type: Initial Production Release
Device: TDC‑E220
Date: February 2026

New Features

Analog & Digital Interfaces
• AnalogIn support: Available via gRPC and AppEngine for high resolution analog signal acquisition.
• Serial communication interfaces: Serial ports (RS-232, RS-485, RS422) are supported via gRPC and AppEngine:
Positioning & Connectivity
• GNSS interface: Fully accessible via gRPC/AppEngine; includes positioning, timing, and satellite data.
• Bluetooth interface: Integrated Bluetooth stack available via gRPC.
• 1 Wire interface: Accessed via gRPC, enabling sensor integration and device identification.
System & HW Integration
• LED control: LED indicators are now controllable via gRPC and AppEngine.
• WIBU CodeMeter: Built in license management and secure entitlement handling.
• USB to Serial Dongle Support: USB serial adapters are automatically enumerated and accessible from containerized applications.

Bug Fixes
• Firmware update reliability improved: Fixed an issue that prevented correct application of firmware updates in certain scenarios.
• Ethernet frame corruption resolved: Addressed a defect causing the Ethernet controller to send malformed frames under load.

Documentation Updates
New or updated developer and user documentation:
• SD Card update guide: Detailed instructions for updating devices from L4M to BaseOS using SD Card.
• Developer examples:
o GNSS usage examples
o WPAN examples
o AnalogIn examples
o Serial communication examples
o 1 Wire integration section

Security Enhancements
• Swagger UI vulnerability patched: Updated to address a publicly known exploit affecting older swagger ui versions.
• Docker authorization policy improved: Security enhancements applied to container authorization rules to strengthen system integrity.