Release 2.0.2 Beta

ZoomISO v2 build 2.0.2 resolves several bugs identified during open beta testing and improves stability surrounding video loss and screen sharing

  • The macOS top menu bar no longer appears on top of ZoomISO’s Fullscreen Display Outputs

  • Channel mapping using the Outputs Mode in Advanced Audio will now include the proper output mapping in the auto save

  • Video Loss Mode will now apply automatically when a user finishes sharing their screen

  • Resolved issues with Image Video Loss Mode not properly supporting PNG and JPEG file formats

    • Images should now scale automatically to fill the 16:9 frame

  • Fixed system lockup when assigning a screen share output when the user was not actively sharing

    • ZoomISO still may not immediately bind to the shared video of participants when the output is created before the user starts sharing. This known issue remains on our list of items to resolve.

  • Freeze Video Loss Mode now automatically “un-freezes” when participant video is restored

  • Fixed bundled ZoomOSC Essentials/Pro command activation not respecting ZoomISO Pro/Lite/Trial activation level

  • Fixed crash when running the Clear Cache operation in the File Menu

  • Fixed crash when targeting a user via Target ID when they are not in the meeting

  • Resolved issue where login token was expiring too soon

    • This resolves the issue where users would log in, and then fail to join a meeting that requires registration several minutes later

  • The OSC /zoom/joinMeeting command now respects the log-in status of ZoomISO

    • For those having trouble joining meetings via this command due to registration issues, so long as the ZoomISO client is logged in, this OSC command will now interact with the login status to execute the proper join flow

Release 2.0.1 Beta

ZoomISO v2 build 2.0.1 adds several stability updates and performance optimizations

  • Improved the novel frame rate output for BlackMagic Desktop Video devices

    • SDI outputs from devices like the BlackMagic Decklink should now appear smoother as this fix resolves micro-stuttering noticed by some users under certain configurations

  • Upgrade to NDI SDK 5.5

    • Previous versions of the NDI library were found to have compatibility issues with the latest NDI tools

    • Vizrt Group has also recently updated NDI tools to fix bugs found in their platform, and we recommend that customers using NDI 5.5 upgrade to the latest version of NDI Tools

  • Fixed app hangup when using Freeze Video Loss Mode when output data is not available

  • Updated debugging messages in Verbose Log Mode

    • Only use Verbose Log Mode if working with a Liminal Support team member, as this mode will degrade app performance 

  • Output engine help text and toggle states better reflect the conditions under which participant data can actually be captured

    • For example, the output engine will remain Paused when Cloud Recording is enabled, as you cannot enable local recording when this feature is active. 

  • Stability / bug fixes surrounding media engine, significantly improving app stability in more diverse situations

Release 2.0.0 Beta

ZoomISO v2 is a new product version encompassing a complete rewrite of the core features of the app and the addition of new workflows and technologies that dramatically expand the capabilities of the Zoom platform in the world of event and broadcast production. ZoomISO v2 introduces Lite and Pro versions of the software, licensed via new subscriptions.

ZoomISO Lite


  • Contains all features of ZoomOSC v4.1 Essentials and Meeting Client 5.11.3

    • Introducing “Sign in with Zoom,” a replacement for the previous “Email Login” workflow that was limited to direct email accounts only.

    • Native Apple Silicon Support with video acceleration

    • See full changelog from ZoomOSC v4.1 for more details

  • New Video Engine

    • ZoomISO now uses “Raw Data” access, improving performance and image quality

    • Export up to 4 video outputs to NDI, Syphon, and Displays

    • New Output Modes allow the creation of video feeds based on a specific participant, active speaker, spotlight index, or screenshare.

    • Added ability to specify output frame rate 

    • New video loss modes

    • Video outputs can be previewed via a pop-over window

    • Video outputs can now have fully custom names

  • ​Embedded ISO Audio

    • NDI outputs can be configured to have embedded audio, which can be isolated to the participant or a mix of the whole meeting

  • New User Interface

    • Participant lists are alphabetized and searchable

    • Participants View can now be filtered 

    • Output status is made available per-output to see FPS and resolution

  • App configuration can be saved, loaded, and merged

  • To export participant data, ZoomISO must have local recording permission, or a role of (co)host. 

    • By default, the Output Engine will be set to Paused, which sets all outputs to video loss mode

    • When ZoomISO has sufficient permission, the Output Engine can be Enabled, at which point, the meeting will surface a Recording notification to all participants, and the outputs will begin to export participant AV data

  • Trial Mode no longer watermarks outputs. Instead, ZoomISO will cut to a “No License” card for two seconds every sixty seconds. During this time, audio outputs will be muted.

  • ZoomISO v2 is supported on Apple Silicon Macs using macOS Monterey. Intel-based Macs or Macs running older versions of macOS are not officially supported, and while the app may run on these systems, the experience may not be optimal.

ZoomISO Pro


  • All features of ZoomISO Lite and ZoomOSC v4.1 Pro

  • High Bandwidth Mode, which allows for more than four participant outputs to be created, depending on the availability of hardware and network resources. 

    • High Bandwidth Mode, particularly when enabling more than 6 1080p 30FPS outputs, requires updates to Zoom’s global infrastructure that are currently in progress, and may require until mid October to complete worldwide rollout. Any ZoomISO client updates required to fully enable this feature, if not already available, will be provided free of charge to ZoomISO Pro users. 

    • At this time, ZoomISO is the only product on the Zoom Platform that can leverage “High Bandwidth Mode,” so the infrastructure updates referenced above will not yet impact the decoders present in Zoom Rooms or Zoom integrations developed by third party companies.

  • Native support for BlackMagic Desktop Video Devices such as the DeckLink Duo 2 and Quad 2.

    • ZoomISO Pro will discover these devices and allow them to be selected as outputs directly from within the app

    • It is important to install and configure the BlackMagic Desktop Video driver and preferences pane (particularly for I/O cards that default to using paired I/O modules on a per-host basis) before attempting to assign participants to outputs in ZoomISO Pro. 

  • Advanced Audio

    • ​ZoomISO Pro adds a tab for assigning audio to any multichannel audio device on the Mac, including Loopback and Dante Virtual Soundcard

    • Participants can be routed to channels of these devices by name, or by following whoever is assigned to a video output. The meeting’s mixed audio can also be assigned

    • Audio can be attenuated by up to -12 db within ZoomISO

    • New ../audioISO user action is added for managing this routing from external devices like a StreamDeck with the new BitFocus Companion Module.

    • Audio Meters display activity on a per-channel basis