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RELEASE_NOTES.md

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15-Oct-2024

API Change

esp_err_t get_bounds(attribute_t *attribute, esp_matter_attr_bounds_t *bounds);
  • Above API returns the esp_err_t and has parameter bounds.

28-Aug-2024

  • Removed the configurability of the NameSupport attribute of the Groups cluster and enabled it by default. The NameSupport and feature-map attributes of the Groups cluster must be kept in sync, the connectedhomeip SDK enables the GroupName feature by default and set the NameSupport attribute to appropriate value.

08-July-2024

  • Changed diagnostic cluster namespaces as per the matter specifications
    • diagnostics_network_wifi -> wifi_network_diagnotics
    • diagnostics_network_thread -> thread_network_diagnostics
    • diagnostics_network_ethernet -> ethernet_network_diagnostics

07-May-2024

14-February-2024

  • An optional argument, max_val_size, has been introduced to the esp_matter::attribute::create() API. This argument is utilized specifically when creating attributes of the char string and long char string data types to specify the maximum supported value size of an attribute.

29-January-2024

  • Add a new parameter for esp_matter::client::connect() to set the CASESessionManager for finding or establishing the CASE sessions.

16-January-2024

  • We have moved the creation of bridge devices to the application callback. Previously, bridge devices were created in the examples/common, but now creation is delegated to the application.

    Initialize the bridge with a callback.

    esp_err_t err = app_bridge_initialize(node, bridge_device_type_callback);

    Below is the example definition of callback creating on-off light.

    esp_err_t create_bridge_devices(esp_matter::endpoint_t *ep, uint32_t device_type_id, void *priv_data)
{
	esp_err_t err = ESP_OK;

	switch (device_type_id) {
	case ESP_MATTER_ON_OFF_LIGHT_DEVICE_TYPE_ID: {
		on_off_light::config_t on_off_light_conf;
		err = on_off_light::add(ep, &on_off_light_conf);
		break;
    }
	.
	.
	.
	default: {
		ESP_LOGE(TAG, "Unsupported bridged matter device type");
		return ESP_ERR_INVALID_ARG;

	}
	return err;
}

  • Similar changes are made in bridge apps.

9-November-2023

  • esp_matter_controller: Change the format of the command data field payload for cluster-invoke commands and the attribute value payload for attribute-write commands. Used unified JSON object format for these payloads. Please refer the document of Matter controller to learn how to construct them.

2-November-2023

All of the non-volatile attribute values now are stored in the namespace esp_matter_kvs with the attribute key base64-encoded of bytes (endpoint-id+cluster-id+attribute-id). For the devices that store the non-volatile attribute values in the previous namespace with previous attribute-key, the values will be moved and the previous keys will be erased.

29-August-2023

  • ot_storage partition is no longer required for thread devices as the mechanism for storing data related to the Thread network has been changed in the openthread component in ESP-IDF.

14-April-2023

Changed how attribute data is stored in NVS

By default primitive data types are stored as blob and that consumes more space in NVS. Added a configuration option (CONFIG_ESP_MATTER_NVS_USE_COMPACT_ATTR_STORAGE) which uses the primitive data type specific NVS APIs to store the attribute. This saves space in NVS partition.

Newer developments shall enable option ESP_MATTER_NVS_USE_COMPACT_ATTR_STORAGE to save on NVS space. All the examples have this option enabled.

7-April-2023

  • tools/mfg_tool/mfg_tool.py now uses connectedhomeip/connectedhomeip/src/setup_payload/python/generate_setup_payload.py instead of previously used compiled chip-tool binary executable which additionally depends on python-stdnum module.
  • Reinstall dependencies to use mfg_tool by running the following commands -
source $IDF_PATH/export.sh
python3 -m pip install -r tools/mfg_tool/requirements.txt

15-March-2023

API Change

esp_err_t esp_matter::identification::init(uint16_t endpoint_id, uint8_t identify_type,
                                            uint8_t effect_identifier = EMBER_ZCL_IDENTIFY_EFFECT_IDENTIFIER_BLINK,
                                            uint8_t effect_variant = EMBER_ZCL_IDENTIFY_EFFECT_VARIANT_DEFAULT);
  • Above API now accepts the parameters for initial identification effect_identifier and effect_variant.
  • If not used, then default value will be used for initialization
typedef esp_err_t (*callback_t)(callback_type_t type, uint16_t endpoint_id, uint8_t effect_id, uint8_t effect_variant,
                                    void *priv_data);
  • Added additional parameter effect_variant in identification callback.
esp_matter::start(event_callback_t callback, intptr_t callback_arg = static_cast<intptr_t>(NULL))
  • This API now accepts a parameter to pass additional data to the event callback. By default, the data is set to NULL in the API.

14-June-2022

First Github release of ESP Matter

Features

- Aligns to Matter Test Event 9 and ESP-IDF v4.4.1.
- ESP Matter Data Model - Intuitive, simple and dynamic.
- Utility device types supported:
    Root Node
    OTA Requestor
    OTA Provider
    Bridged Node
- Application device types supported:
    Lighting
      On/Off Light
      Dimmable Light
      Color Temperature Light
      Extended Color Light
    Smart Plugs/Outlets
      On/Off Plug-in Unit
      Dimmable Plug-in Unit
    Switches
      On/Off Light Switch
      Dimmer Switch
      Color Dimmer Switch
    Sensors
      Contact Sensor
      Occupancy Sensor
      Temperature Sensor
    Closure
      Door Lock
    HVAC
      Thermostat
      Fan
- Mass manufacturing tool that generates manufacturing NVS partition image and onboarding codes.
- RainMaker integration.
- Zigbee to Matter and BLE Mesh to Matter Bridge.

25-Sep-2023

API Change

esp_err_t add(endpoint_t *endpoint, config_t *config)
  • Above API returns the esp_err instead of endpoint.

Known Issues

- BLE memory is not freed if the device has already been commissioned on bootup.
- Host-based chip-tool shows the following error during commissioning/cluster control, but the functionality works fine:
    CHIP Error 0x00000070: Unsolicited msg with originator bit clear.