Model 381 (UXT) Dante Firmware

File Name: M381v4r11r0.dnt

Version History:

Version: 4.11.0
Release Date: 12-Aug-2026
Description: Fixes bugs related to UDP packet bridge for STcontroller. Improves performance when an mDNS proxy is on the network. (UltimoX2 v4.2.12.1)
Known Issues: Nothing of general concern.

Version: 4.10.0
Release Date: 04-Aug-2026
Description: Resolves network timing issue that could cause the device’s audio latency to suddenly jump to a higher value and remain stuck until the device is restarted. (UltimoX2 v4.2.11.1)
Known Issues: Nothing of general concern.

Version: 4.9.0
Release Date: 27-Aug-2024
Description: Provides a range of bug fixes including improvements to network connectivity and integration with Dante Domain Manager (DDM). (UltimoX2 v4.2.9.10)
Known Issues: Nothing of general concern.

Version: 4.8.0
Release Date: 27-Sep-2023
Description: Provides a range of bug fixes including improvements to PTP synchronization, AES67 timing, and Dante Domain Manager (DDM) discovery. (UltimoX2 v4.2.8.2)
Known Issues: Nothing of general concern.

Version: 4.7.0
Release Date: 31-Mar-2022
Description: Maintenance release. Provides a range of bug fixes including dynamic AES67 support. Updated DSCP (Differentiated Services Code Point or DiffServ) tag values for PTPv2 time events and RTP audio (media) streams to EF (46) and AF41 (34) respectively, to align with AES67 and SMPTE ST 2110 standards. (UltimoX2 v4.2.5.1)
Known Issues: Nothing of general concern.

Version: 4.6.0
Release Date: 03-Jun-2020
Description: Maintenance release. Provides a range of bug fixes. (UltimoX2 v4.2.2.3)
Known Issues: Nothing of general concern.

Version: 4.5.0
Release Date: 10-Jun-2019
Description: Maintenance release. Provides a range of bug fixes. (UltimoX2 v4.1.6.7)
Known Issues: Nothing of general concern.

Version: 1.0.0
Release Date: 07-Jan-2019
Description: Initial Release. (UltimoX2 v4.1.4.2)
Known Issues: For reliable multicast flow operation Ultimo transmitter channel labels must be 19 characters or less. For reliable Ultimo receiver multicast flow operation channel labels must be 28 characters or less.

