ZoomOSC 4 Changelog 
Release notes and change tracking for ZoomOSC is made available on this page.

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Release 4.6.1

ZoomOSC build 4.6.1 s a minor release for bug fixes and enhancements

• Added option to manually enter a ZAK token to the Join Meeting page for signed-in users

• Updated Zoom Meeting SDK to v6.4.10

  • Fixes an issue where some OSC commands would not work if the app joined while a screenshare was in progress​

  • Fixes a rare crash in the ssb_sdk module that could impact the app

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Release 4.6.0

ZoomOSC build 4.6.0 includes a major refactor of participant management and breakout room OSC commands in order to improve performance

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• Participant management has been refactored to improve performance in large webinars with thousands of attendees joining in rapid succession

  • ​This new system was stress tested with 10,000 attendees joining within 30 seconds of each other

  • We continue to recommend using more aggressive user filter settings for OSC to avoid unnecessary OSC traffic and processing, especially in large webinars

• OSC management of breakout rooms has been refactored

  • ​If ZoomOSC is in the main room of a meeting, and an attendee is sent to a breakout room, they will now still appear in the ../list output but will have the online/offline parameter set to zero, indicating that local commands cannot operate on them.

  • Targeting a user in a breakout room is now much more reliable because the user still exists in ZoomOSC’s memory and can be disambiguated into the correct ID to complete a breakout room action using Zoom’s new management system

• Added a notice that Liminal Web Store device-based licenses will be cancelled in 2026. Hub Host activation through the Zoom Events Platform will be required in the future to activate ZoomOSC.

  • ​See details at https://liminalet.com/dbl-notice

• Added new OSC command /zoom/StartMeeting to start a Zoom meeting using the logged-in user’s identity

• ​Added new feature to automatically refresh the ZAK token of a logged in user when processing a ../joinMeeting or ../startMeeting OSC command​​

• Fixed issue where Hubs created by expired Zoom Events or Zoom Sessions licenses could cause unintended licensing behavior

• Removed several deprecated features including $$ syntax for OSC tunneling via chat, remote control of other ZoomOSC instances via chat pairing, Target ID command syntax, and automatic acceptance of incoming requests

• Added a new toggle to the Additional Settings area to let the user decide if they want to automatically accept incoming requests for video and mic enablement

• Upgraded Zoom Meeting SDK to version 6.4.1

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• Release 4.5.1

ZoomOSC build 4.5.1 introduces minor fixes and enhancements

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• Removed case where an empty gallery order could be sent via OSC​

• Fixed issue where some webinar panelists were not accessible via OSC​

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Release 4.5.0

ZoomOSC build 4.5.0 adds OSC support for polls and introduces various fixes and enhancements

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• Introduced support for Zoom polls via OSC

  • Get a list of available polls'

  • Start or stop a poll

  • Get the audience answer information of a completed poll

• Added direct support for tk= webinar token join URL parameters when joining via a Zoom link​

• Changed ../meetingStatus to ../meetingStatusChanged to fire as an event with additional details

• Security improvements to OSC library

• Security improvements to OSC allow-list, now with NIC selection

• Upgraded Zoom Meeting SDK to version 6.1.10

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Release 4.4.1 b51

ZoomOSC 4.4.1 updates the OSC workflows for Q&A and introduces various fixes and enhancements

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• Enhanced support for Q&A over OSC

  • Added OSC support for Meeting Q&A 

    • Meeting Q&A uses the same interfaces / syntax as the existing Webinar Q&A OSC features

  • Added /zoom/getQuestionList to request a series of packets listing all questions

    • response is /zoomosc/questionList

  • Added /zoom/getQuestionInfo for requesting information on a specific question

    • response is /zoomosc/questionInfo

  • Added /zoom/listAnswers to request a series of packets containing all answers either to a specific question or across all questions

    • response is /zoomosc/answerList

  • Added /zoom/getAnswerInfo to get the details of a specific answer

    • response is /zoomosc/answerInfo

  • Fixed issues with question and answer OSC controls

• Added OSC outputs when a share event starts and stops 

  • User output events are ../audioShareStarted, ../audioShareStopped, ../videoShareStarted, and ../videoShareStopped 

• Fixed issue with displaying a long list of sessions within a Zoom Event 

• Fixed issue with messageWaitingRoom OSC command

• Migrated to Zoom service for initializing and authenticating the app

• Security improvements to OSC library

• Security improvements to OSC allow-list

• Upgraded Zoom Meeting SDK to version 6.0.10

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Release 4.4.0

ZoomOSC 4.4.0 adds a new OSC command for translated captions and resolves a handful of other OSC command issues

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• Added new OSC output for Zoom’s automatic transcriptions

  • This new OSC output also activates when the live transcript utilizes translation

  • The character set supported by the OSC protocol implementation may be limited by the decoder

• Added parameters to OSC chat outputs to add unique IDs and a code to identify which participants received the message​

• ZoomOSC will now attempt to automatically log back in when relaunched from a logged-in state

• ZoomOSC will now attempt to automatically log out if its login tokens have expired

• Fixed issue with sentToBreakout OSC command

• Fixed issue with CLI arguments for starting ZoomOSC with a specific IP/Port

• Fixed issue where ZoomOSC could not control slides during a share

• Fixed issue with Webinar Q&A outputs not reporting IDs properly

• Fixed issue with Question Deleted Webinar Q&A output typo in OSC address

• Fixed issue where ZoomOSC could send a high volume of offline OSC notices

• Fixed issue with Breakout Room OSC assignments

• Removed the column for incoming participant video statistics in Participant Management

  • ​This column is only useful for ZoomISO, so it was removed

• ​Added an escape button to the authentication failure window notice

• Updated Zoom Meeting SDK to 5.17.10

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