You will be provided with a reference and some statements. Please determine whether each statement is 'supported', 'unsupported', or 'unknown' with respect to the reference. Please note:
First, assess whether the reference contains any valid content. If the reference contains no valid information, such as a 'page not found' message, then all statements should be considered 'unknown'.
If the reference is valid, for a given statement: if the facts or data it contains can be found entirely or partially within the reference, it is considered 'supported' (data accepts rounding); if all facts and data in the statement cannot be found in the reference, it is considered 'unsupported'.

You should return the result in a JSON list format, where each item in the list contains the statement's index and the judgment result, for example:
[
    {
        "idx": 1,
        "result": "supported"
    },
    {
        "idx": 2,
        "result": "unsupported"
    }
]

Below are the reference and statements:
<reference>
Matter 1.4 Enables More Capable Smart Homes - CSA-IOT

Support for Syncing Across Ecosystems, Home Network Infrastructure, New Energy Management Devices and Features, and Other Important Enhancements The…

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Press Releases

Matter 1.4 Enables More Capable Smart Homes

11/7/2024

Support for Syncing Across Ecosystems, Home Network Infrastructure, New Energy Management Devices and Features, and Other Important Enhancements

The Connectivity Standards Alliance is pleased to announce the release of Matter 1.4, now available for device makers and platforms to integrate into their products.

This update takes a significant step forward in the Matter ecosystem. Matter 1.4 introduces enhancements that allow device vendors and platforms to improve the multi-ecosystem user experience with Enhanced Multi-Admin, create more reliable and interoperable home networks with the introduction of Matter certifiable Home Routers and Access Points, help users save energy with expanded energy management enhancements, and build new and better experiences with several new device types and core enhancements.

The evolution of the Matter specification in the 1.4 release reflects the support of hundreds of Member companies and the dedication of thousands of engineers and product experts globally. With Matter products now in millions of homes around the world since its launch in 2022, Matter Working Group members continue to bring their real-world experiences, innovations, and challenges into Matter’s ongoing development, to improve and grow the smart home. Matter 1.4 reinforces our commitment to delivering simplicity, interoperability, and new experiences across the IoT landscape.

Enhanced Network Infrastructure with Home Routers and Access Points (HRAP)

Devices such as home routers and modems, access points, and set-top boxes can now be designed or upgraded to provide more robust support for Matter-based smart homes. Matter-certified HRAP devices provide the foundational infrastructure of smart homes by combining both a Wi-Fi access point and a Thread Border Router, ensuring these ubiquitous devices have the necessary infrastructure for Matter products using either of these technologies. HRAP devices also feature a secure directory for storing and sharing Thread network credentials. This standardized approach makes it easier for users to add new Thread devices, including Thread Border Routers, to their existing Thread networks, rather than creating new ones, realizing the benefits of a unified Thread mesh network and reducing network fragmentation.

Starting from this foundation, the HRAP roadmap will continue to add enhancements to improve smart home infrastructure including support for the improvements in Thread 1.4. (Note, the version numbers between this Matter 1.4 release and Thread’s 1.4 release are coincidental and unrelated.)

Enhanced Multi-Admin

Multi-Admin is central to Matter’s vision of choice and interoperability, allowing users to connect Matter devices to multiple smart home systems. However, sharing each device individually when managing multiple platforms can become tedious and complex as users expand their smart homes. Enhanced Multi-Admin makes smart home management easier with single user consent, enabling existing and new devices to connect to multiple ecosystems automatically. Matter 1.4 and future releases provide developers with flexible approaches to implement this optional experience based on their applications.

Following this release, the Alliance will be publishing more in-depth blog posts on how HRAP and Enhanced Multi-Admin functions work and how product makers can choose the path that best fits their applications. Keep an eye on the Alliance newsfeed for more on these two enhancements.

Enhancements to Energy Management

Home energy management is emerging as one of the top reasons driving consumers to adopt smart home devices, according to recent research from Parks Associates*. Not only do consumers want to know how much energy each device and appliance in their home uses, but they are also looking to routines and automations to help them save energy and decrease their energy bills without making manual adjustments. This future becomes possible with the new device types and features introduced in Matter 1.4.

In Matter 1.3, we introduced energy reporting, enabling energy management use cases for large appliances and electric vehicle supply equipment. Matter 1.4 expands its energy management capabilities by adding support for new device types like solar panels, batteries, heat pumps, and water heaters. These additions, along with improvements to the energy management and thermostat clusters, pave the way for smarter, more automated energy management within the home.

New Energy Device Types and Capabilities

Solar Power – Existing electrical power and electrical energy support in Matter has been extended to Solar Power device types, including inverters, individual and panel arrays, and hybrid solar/battery systems.

Batteries – These include battery walls, storage units, and Battery Energy Storage Systems (BESS), capable of discharging energy back into the home or grid, creating “virtual power plants.” Enabled by home energy management systems, they support load balancing, with any controller potentially serving as the management system.

Heat Pumps – Heat pumps are an increasingly popular appliance for managing temperature in homes, with a growing number of incentive programs for their installation. With Matter’s energy management capabilities, these devices could forecast consumption and adjust usage during peak demand. Heat pumps can shift energy use to off-peak times, such as pre-heating the home, and some feature a “buffer tank” that functions like a battery.

Water Heaters – Electric water heaters can be set to a preset temperature or percentage, letting users monitor hot water levels. A boost command, which enables rapid heating from multiple energy sources for situations where hot water is needed quickly, allows temporary overrides in the heating schedule, ideal for situations like hosting guests. This gives consumers more control and flexibility. Additionally, the new Water Heater Mode cluster provides users with the ability to easily toggle scheduling on and off, making it simple to adjust heating patterns when normal routines change.

Enhancements to Electric Vehicle Supply Equipment (EVSE): EVSE support is enhanced by introducing user-defined charging preferences like specifying when they want their car to be charged, allowing users to choose optimal times for convenience and cost, building on the provisional features from earlier versions.

Enhancements to Thermostats
: Thermostat clusters add support for scheduling and preset modes like vacation and home/away settings. Presets can be triggered through motion detection, integrated with other devices, and even automation based on calendar events.

Device Energy Management and Mode – With support for Device Energy Management, Matter 1.4 allows energy-consuming devices to adjust start times based on energy usage forecasts and power management needs. This feature is ideal for devices in optimizing their consumption patterns. The new Device Energy Management Mode cluster enables easy toggling between device-specific, local, or grid-wide energy optimization, providing greater flexibility and efficiency for managing power across the home.

Mounted On/Off and Dimmable Load Control

Matter 1.4 introduces two new device types designed specifically for fixed in-wall smart home devices that deliver electrical power to wired devices, such as in-wall switches for controlling lights, fans, and other non-smart appliances. Previously, these were typically modeled as lights, which could limit user interface or automation flexibility.

Enhancements to Occupancy Sensing

Enhancements to the existing sensor cluster now support sensing features like radar, vision, and ambient sensing technologies. The update also introduces customizable sensitivity settings and offers improved tuning for sensor and history reporting through event-based updates, providing a more precise and adaptable smart home experience. These updates serve as a foundation for future work to support new sensing techniques to enable capabilities like person detection and activity classification.

Enhancements to Battery Powered Devices

Matter 1.4 introduces core enhancements that optimize battery life and communication for Intermittently Connected Devices (ICDs) like switches, buttons, and sensors. Key updates include the Long Idle Time (LIT) protocol, which extends battery life, and a new Check-In Protocol to ensure reliable communication for low-power devices that require LIT. Additionally, quieter reporting of predictable attribute changes reduces network traffic, resulting in improved battery performance and network efficiency.

Developers interested in learning more about these enhancements can access the following resources:

Matter 1.4 specification and test plan

Matter 1.4 SDK Release

Matter Momentum

With nearly two years of real-world deployment in millions of households, the Matter Working Group remains steadfast in its commitment to ongoing collaboration across the specification, with a focus on refining software development kits, streamlining certification processes, and optimizing individual device implementations. These efforts aim to strengthen Matter’s role as a unifying force, enabling secure and reliable interoperability and driving the next wave of innovation in connected devices.

Learn more about
Matter
and its continuing evolution as the foundation for connected things.

*
Smart Home: Integration, Automation, and Control
by Parks Associates.

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</reference>

<statements>
1. Matter 1.4 builds on this mesh standard by introducing device types and functional clusters that expand the scope of interoperable home control
2. The Home Routers and Access Points (HRAP) device type standardizes the inclusion of Thread Border Routers directly within consumer broadband routers, Wi-Fi mesh nodes, and set-top boxes
3. HRAP equipment creates a secure, centralized directory for network credentials, preventing network fragmentation and ensuring consistent low-power RF coverage across residential properties
4. Additionally, Matter 1.4 introduces Enhanced Multi-Admin capabilities, which eliminate the friction of manually sharing individual devices across different smart home apps
5. A single consent workflow now synchronizes hardware profiles across all authorized administrative platforms automatically
6. Matter 1.4 also introduces energy infrastructure support, establishing unified data schemas for solar inverters, battery storage systems, heat pumps, and electric vehicle supply equipment (EVSE)
7. Finally, the introduction of the Long Idle Time (LIT) protocol and reliable Check-In commands optimizes the operation of battery-powered Intermittently Connected Devices (ICDs), enabling multi-year coin-cell lifespans without sacrificing end-to-end responsiveness
8. In the Smart Home Architectural Evolution table, the modernized ambient paradigm (2025–Present) for Energy Management is dynamic load balancing, V2H bidirectional flow, and tariff arbitrage
9. Supported by the standardized energy clusters in Matter 1.4, connected heat pumps and water heaters adjust their thermal cycles based on power availability, turning residential homes into flexible nodes capable of participating in municipal Virtual Power Plants (VPPs)
10. Solid-State Smart Panels & Bi-Directional HEMS Controllers: Matter 1.4 Device Energy Management Cluster; ISO 15118-20 (V2G/V2H); SunSpec Modbus; EU CRA compliant
11. Contactless Ambient Health & Fall-Monitoring Nodes: Matter 1.4 Enhanced Occupancy Sensor Cluster; Thread 1.4 over 802.15.4 (LIT Protocol support)
12. Proprietary communication protocols and closed ecosystem bridges are becoming commercially unviable
13. As residential electrification accelerates, high-power appliances—including variable-speed heat pumps, resistive water heaters, HVAC systems, and EV chargers—will incorporate Matter-compliant energy management clusters
14. These systems will forecast power requirements, evaluate real-time utility pricing signals, balance local solar generation with vehicle battery storage, and proactively adjust their operating cycles to reduce energy costs and support grid stability
</statements>

Begin the assessment now. Output only the JSON list, without any conversational text or explanations.