The Connectivity Standards Alliance, also known as the CSA, recently announced the release of Zigbee 4.0 along with a new IoT software platform called Suzi. This update is intended to help make smart devices more secure and easier to use together. The announcement took place on November 18, 2025, and is aimed at companies and developers who work with smart home products and other connected devices.
Zigbee 4.0 is the latest version of the Zigbee wireless protocol. Zigbee is a standard used in many smart home products like light bulbs, sensors, and plugs. The new version brings stronger security features, which should help protect against hacking. It also promises better performance and lower power use, which can help smart devices run longer on batteries. Zigbee 4.0 remains focused on making sure devices from different brands can work together, which has been a challenge in the smart home market.
Suzi, the new IoT software platform introduced by the CSA, is designed to support developers who want to build secure and reliable connected products. Suzi gives companies tools and software to help with the creation, setup, and management of smart devices. The platform is built to work with Zigbee 4.0, and it aims to make it easier for manufacturers to add new features and keep their products up to date. This should help companies get new products to customers more quickly and with fewer problems.
The CSA says that both Zigbee 4.0 and Suzi are meant to help the next wave of connected devices reach the market. By focusing on security and making it easier for devices to communicate, the group hopes to address some of the main complaints that people have had about smart home products. The updates also try to keep up with growing demands from both businesses and regular users for smart devices that are simple to set up and safe to use.
The launch of Zigbee 4.0 and Suzi is part of the CSA’s goal to support a future where more devices can connect and work together. The CSA works with many companies in the smart home and IoT space, and these updates are meant to help the whole industry move forward. By providing a common set of rules and tools, the CSA wants to help both large and small companies make products that are easier for people to use in their daily lives.
Many companies are expected to start using Zigbee 4.0 and Suzi in new products over the coming months. This could lead to more choices for consumers who want to build a smart home that just works without a lot of setup. With these updates, the CSA is hoping to make smart devices safer and easier to use for everyone.
View the original press release.
