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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Rev: 06/25 All rights reserved. Specifications and pricing subject to change without notice.