===== Version 2.9.1 (V2.9.1.0) =====
==== Date ====
2023-02-23
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==== New Features ====
  * Supports activating licenses for use of specific features on devices.
  * QR code recognition and authentication support using the camera.
  * Support setting the number of retries in case of socket read/write failure.
  * Supports 3rd party OSDP reader connection.

<text size="x-large">1.</text> Added device license activation feature. \\

  * Add structure [[configuration_api#BS2License]]
  * Add structure [[configuration_api#BS2LicenseConfig]]
  * Add structure [[sdk_api#BS2LicenseBlob]]
  * Add structure [[sdk_api#BS2LicenseResult]]
  * Add API [[BS2_GetLicenseConfig]]
  * Add API [[BS2_EnableDeviceLicense]]
  * Add API [[BS2_DisableDeviceLicense]]
  * Add API [[BS2_QueryDeviceLicense]]

<text size="x-large">2.</text> Added features for QR code authentication by using the camera. \\

  * Refer to structure [[configuration_api#BS2BarcodeConfig]]

<text size="x-large">3.</text> Added retry count for communication used when an error occurs while reading or writing packets from the socket during communication. \\
<callout type="warning" icon="true">
**CAUTION** \\
Increasing the number of retries is a way to resolve temporary errors, but care must be taken as direct causes such as network disconnection occurs, can lead to wasted resources by meaningless read/write retries when reconnection is required. \\
</callout>

  * Add API [[BS2_GetSocketRetryCount]]
  * Add API [[BS2_SetSocketRetryCount]]
  * Add API [[BS2_GetSocketSSLRetryCount]]
  * Add API [[BS2_SetSocketSSLRetryCount]]

<text size="x-large">4.</text> Added feature to connect and manage 3rd party OSDP. \\

  * Add structure [[slave_control_api#BS2OsdpStandardDevice]]
  * Add structure [[slave_control_api#BS2OsdpStandardDeviceAvailable]]
  * Add structure [[slave_control_api#BS2OsdpStandardNotify]]
  * Add structure [[configuration_api#BS2OsdpStandardConfig]]
  * Add structure [[configuration_api#BS2OsdpStandardActionConfig]]
  * Add structure [[slave_control_api#BS2OsdpStandardDeviceAdd]]
  * Add structure [[slave_control_api#BS2OsdpStandardDeviceUpdate]]
  * Add structure [[slave_control_api#BS2OsdpStandardDeviceCapability]]
  * Add structure [[slave_control_api#BS2OsdpStandardDeviceResult]]
  * Add structure [[slave_control_api#BS2OsdpStandardDeviceSecurityKey]]
  * Add API [[BS2_GetOsdpStandardConfig]]
  * Add API [[BS2_GetOsdpStandardActionConfig]]
  * Add API [[BS2_SetOsdpStandardActionConfig]]
  * Add API [[BS2_AddOsdpStandardDevice]]
  * Add API [[BS2_GetOsdpStandardDevice]]
  * Add API [[BS2_GetAvailableOsdpStandardDevice]]
  * Add API [[BS2_UpdateOsdpStandardDevice]]
  * Add API [[BS2_RemoveOsdpStandardDevice]]
  * Add API [[BS2_GetOsdpStandardDeviceCapability]]
  * Add API [[BS2_SetOsdpStandardDeviceSecurityKey]]
  * Add API [[BS2_SetOsdpStandardDeviceStatusListener]]
  * Add callback function [[server_api#OnOsdpStandardDeviceStatusChanged]]


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==== Modified Features ====

<text size="x-large">1.</text> Fixed memory leak caused by network switches keepalive check being misunderstood by the SDK. \\

<text size="x-large">2.</text> This is a problem that occurs ''only in version 2.8.3.2'', and a problem that can lead to abnormal termination during user registration while taking a log dump inside the SDK has been fixed. \\

<text size="x-large">3.</text> Fixes were made to stabilize the code internally in the SDK. \\