Technical Bulletin

To: Administrator, Power Users

Date: April 13, 2026

Re: DW Spectrum Release Notes 6.1.1.42624

DW Spectrum Software Update 6.1.1.42624

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Affected Software: DW Spectrum Professional, DW Spectrum Enterprise

New Software Version: 6.1.1.42624

Previous Software Version: 6.1.0.42176

Release Date: April 13, 2026

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In-Client Upgrade Information

Build Number: 42624
Password: ltkp5y

New Software Notes

Breaking Changes

Support for MacOS 12 will be discontinued in the next major release (6.2).

New Operating System Support

MacOS 26 (Tahoe)

DW Device Support & Fixes

Fixed the buzzing issue on the DWC-INTCAM02 intercom that occurred while using 2-way audio.

General Improvements

JSON Web Tokens (JWT) are now fully supported to improve authentication performance and avoid accidental logouts from Cloud-connected sites.
Denmark local functionality has been added.
The in-client Remote Administration Tool has been improved.
Improved the DW Spectrum Client desktop software stability for Windows 11
The window size limitation has been eliminated when using the “--window-geometry” CLI parameter to run the desktop client.
The “--hide-panels” CLI parameter has been added to launch the desktop client with all side panels hidden.
The “Reset to defaults” Web Admin dialog has been improved. Added the information that the activated licenses will remain on the DW Spectrum Server after a reset.

Enterprise Functionality Improvements & Fixes

Fixed issue where sites would inaccurately show up as “unreachable” in the desktop client.

Analytics Improvements & Fixes

Only the first object was detected on Dahua ITC413-PW4D-IZ1. Fixed.
Objects detected on Hikvision iDS-2CD7146G0-IZS did not trigger actions. Fixed.
Analytic events (IVA) did not work on Bosch cameras. Fixed.
Analytic event attribute information was missing in the Event Log description. Fixed.
Analytic Events were not triggered if the Event Rules were configured under the group level. Fixed.

Third-Party Device Support & Fixes

Device-specific fixes:

Fixed RTP issues on the URMET 1099/501B camera.
Live stream from AXIS F9114 could not load. Fixed.
Initialization has been improved for MERIT-LILIN cameras.
Alarm input events are supported on Hikvision DS-2CD2123G2x, DS-2CD3687G3x and Hikvision DS-2DE3C210IXx.
Osiris OS-I3-EENSW8Mx are detected as Dahua devices.
Input signals from FLIR were handled for 10-30 seconds. Fixed.

Newly supported devices:

Elmo NEXIBF07T, NEXIMF02

Encoders added to the analog list:

Speco N32NRN, N16NRX

Multi-sensor cameras:

Vivotek TT9333
Hikvision iDS-2CD8A46G2-XZHSY

Bug Fixes

General UI Fixes

Fixed the buzz issue on the DWC-INTCAM02 intercom during 2-way audio.
Shared bookmarks with video footage longer than 1.5 minutes could not be played back properly. Fixed.
The Desktop Client window configuration was not saved properly if another Desktop Client instance was opened in a new window. Fixed.
Japanese translations improved.
The Desktop Client could crash while accessing DW Maps. Fixed.
Some frames could be lost when a multi-video export contained many camera items. Fixed.
The Desktop Client on Windows could not be uninstalled remotely (using SCCM and the psexec CLI tool). Fixed.
The Desktop Client could crash if a camera went offline while a maintenance confirmation dialog was open. Fixed.
Users (Power User or Administrators) could not rename shared layouts after locking and unlocking them. Fixed.
The live stream stopped after selecting an offline device as the audio source. Fixed.
Shared layouts did not save resolution settings for cameras. Fixed.
Fixed the “--window-geometry” CLI parameter to launch the Desktop Client.
Fixed the following audio features that did not work on Mac OS Tahoe:
- Audio from cameras
- The “Speak” action
- The “Play Sound” action

Server Fixes

Fixed high CPU usage by DW Spectrum Server after a live view license activation.
Server kept losing connection to the LDAP server after restart if it had been terminated unexpectedly in the past. Fixed.
Let’s Encrypt certificates could not be loaded on a 6.1 Server due to ECDSA key. Fixed.
The server GUID of the Nvidia Jetsons were identical causing conflicts in multi-server environments. Fixed.
Server did not restore connection to inaccessible SMB shared storage after they became accessible again. Fixed.
Sites containing apostrophe characters in their names could not connect to DW Cloud. Fixed.
Server tried to send a test email to "mail@example.com" every time the Site Management settings dialog was open in the desktop client. Fixed.
Sending emails from VMS using an insecure protocol did not work. Fixed.

API & SDK Fixes

Sites can be updated to a specific version via API using the /rest/v4/update method.
The internal HTTPS Request did not work with Create Generic Event API (/rest/v4/events/generic). Fixed.
Introduced the default value (${DATA_DIR}/update_verification_keys/) for the additionalUpdateVerificationKeysDir build parameter when building and signing a custom package.
Fixed documentation and implementation issues with the /rest/v4/login/tickets method. If a user tried to use the access token (the x-runtime-guid value) as a request body param key, server returned unauthorized error.
The sender SSRC was always 0 in sender report while using Server RTSP API to restream. Fixed.
The preset ID was not created by Server automatically while using the /rest/v{3-4}/devices/{device_id}/ptz/presets API request to create a preset. Fixed.
Integrations can now be deleted via API request.
The /rest/v4/update/info API call returned empty results. Fixed.
Showreels are now accessible to power users via API.

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