AC-MXNET-USP-ES ~ APP Ver V1.2.2.5 ~ MCU Ver V0.24 ~ 4-17-2026

Please ensure your endpoints are greater than APP Version V1.2.0.7 before proceeding.

Please Upgrade the APP Firmware first, before applying an MCU Upgrade.

Latest AC-MXNET-USP-ES APP Firmware can be downloaded here: AC-MXNET-USP-ES APP + MCU Firmware

# Release notes - USP Software - USP-ES-APP V1.2.2.5 / MCU V0.24

### New Features

- Added Audio Embedding support to Open Streaming.

### Improvements

- Improved responsiveness for progression counter during firmware upgrades.

- Cleaned up diagnostic log entries that could cause excessive bloat in filesize over time.

### Bug Fixes

- Fixed an issue that could cause preview streams to be lost after a factory reset of the device.

- Fixed a rare issue that could cause USB Subscriptions to fail to appropriately subscribe.

- Fixed an issue that could cause encoding process to fail if the encoder was set to Encoder-Only operational mode.

- Fixed an issue that could cause the USP Decoding software to lock up if the internal clock was abrubtly changed.

- Fixed an issue that could cause AXIS PTZ Camera's RTSP streams to fail to decode properly.

- Fixed an issue that could cause an abnormal device restart, if the USP endpoint simultaneously sent and received an IR command.

-Fixed an issue that could cause a latency drift when streaming third-party audio streams to a USP decoder.

- Fixed an issue that could cause audio to not re-populate from an existing external stream if the device was rebooted/power cycled.

- Fixed a rare issue that could trigger abnormal video loss until a soft reboot when rapidly subscribing to different video streams.

APP Ver V1.2.1.8 Release Notes:

New Features:

1. Initial Release Firmware.

Bug Fixes & Improvements:

1. Initial Release Firmware.

Known Issues:

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