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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →At Open Source Leadership Summit 2019, Kate Stewart of The Linux Foundation presented “Zephyr: Developing Open Source for Safety and Security.” The session took place on March 14, 2019, and focused on the considerations involved in developing Zephyr as open-source software for safety- and security-sensitive embedded systems. The available official listing and slide-deck cover confirm that subject, but do not establish a particular certification, safety standard, test result, or engineering outcome.
When and where the session took place
Open Source Leadership Summit 2019 ran from March 12 through March 14 at the Ritz-Carlton in Half Moon Bay, California. The Linux Foundation described the summit as an invitation-only event for Linux Foundation and project members. Its published tracks included security and certification of open source.
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The official OSLS slides page lists Kate Stewart’s session under the title “Zephyr: Developing Open Source for Safety and Security.” The deck cover identifies Stewart with The Linux Foundation and dates the presentation March 14, 2019.
What Zephyr was described as
A 2019 Zephyr Project description presented Zephyr as an open-source real-time operating system for resource-constrained devices and multiple processor architectures. Examples named there included connected sensors, LED wearables, modems, and small IoT wireless gateways.
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That description is historical context from 2019, not a current support matrix. Hardware, architecture, toolchain, and subsystem support should be checked against current Zephyr documentation before starting a new project.
What the evidence supports—and what it does not
Established by the official materials
- The presentation was given by Kate Stewart of The Linux Foundation.
- It was presented on March 14, 2019, during Open Source Leadership Summit 2019.
- Its stated subject was developing Zephyr with safety and security in mind.
- The summit treated security and open-source certification as relevant program themes.
Not established by the listing or cover
- A certification awarded to Zephyr or to a particular release.
- Compliance with a named safety or security standard.
- A quantified test result, defect reduction, or other performance outcome.
- A specific development methodology, assurance case, or process claimed in the talk.
The session title should therefore be read as a description of the presentation’s subject, not as proof that Zephyr had achieved certification or a defined safety level. More material may exist inside the original PDF, but no additional technical conclusion is stated here without verifiable slide text.
Why the topic mattered for embedded developers
An RTOS used in small connected devices sits close to hardware, timing constraints, communications, and update mechanisms. In that setting, safety and security concerns can affect architecture, coding practices, testing, maintenance, and the way project evidence is documented. Stewart’s OSLS session is best understood as a historical discussion of those concerns in an open-source Zephyr context, rather than as a published certification announcement.
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How to use the topic as a hands-on starting point
A separate 2019 Zephyr event listing described board demonstrations for developers new to Zephyr. That evidence does not show that OSLS 2019 required or endorsed a particular development board. If you want to experiment with Zephyr today, evaluate boards using the following criteria:
- Architecture compatibility: confirm that the board’s processor and supported toolchain match the Zephyr version you plan to use.
- Useful peripherals: check for the sensors, radios, LEDs, timers, or interfaces needed by your learning project.
- Documentation and examples: prefer boards with maintained board files, sample applications, and clear setup instructions.
- Debugging access: verify availability of a supported debug probe or onboard debugger, console access, and recovery procedures.
- Version fit: check current official documentation rather than relying on a 2019 compatibility claim.
Bottom line on OSLS 2019 and Zephyr
OSLS 2019 documented a focused presentation by Kate Stewart on developing Zephyr for safety and security concerns. It confirms the subject, presenter, date, and event context. It does not, by itself, prove certification, compliance with a named standard, or a measurable engineering result. Those claims require separate, verifiable technical and project records.
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