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Cisco RoomOS 11 Update Version RoomOS 11.38.1.1

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Update Summary

RoomOS 11.38.1.1, released May 6, 2026, adds support for joining Webex Webinars with up to 5000 attendees on Cisco devices. It also includes fixes for audio/video loss, sharing, proxy, DNS, and meeting-join issues.

Update Details

Security

  • NTP synchronization failure using SHA-256 with key/ID pair.
  • Remote paired Room Navigator bypasses proxy for SCEP connection.

Bug Fixes

  • Fixed several seconds of complete audio and video loss in E2EE Webex Meetings.
  • Fixed audible noise when audio watermarking is enabled in a Webex Meeting.
  • Fixed sharing not working on an Edge for devices linked device during a hot-desking session.
  • Fixed audio distortion on Room 55 devices when content is shared.
  • Fixed device crashes caused by UI extensions issues.
  • Fixed triple-screen selfview switching from full screen to PIP when presentation starts.
  • Fixed Metaproxy adding a 5-second delay when DNS AAAA requests fail.
  • Fixed hybrid meeting edits from Zoom CRC to Google Meet not updating the dial string.
  • Fixed USB audio not working after upgrade from RoomOS 11.29.
  • Fixed codec fallback to A records when IPv6 syslog connection fails.
  • Fixed device failures when joining a meeting.
  • Fixed inability to lock the About this device menu item in Settings.
  • Fixed incorrect domain being auto-appended to the dial number after @.

New Features

  • Support for joining Webex Webinars with up to 5000 attendees.
  • For large webinars, panelists see all panelists and only see attendees when they raise their hand or are unmuted.
  • For webinars with up to 1000 attendees, panelists can see all attendees in the participant list on the device.

Hints

  • The 5000-attendee webinar feature is being rolled out gradually by customer cohort on the Webex side.
  • For the best host and cohost experience, join paired with the Webex App to access full Webinar controls.
Product Information

Vendor: Cisco

Product: RoomOS

Product type: Other

Application category: Communication

Platform: Room Device

Variant: 11

Version: RoomOS 11.38.1.1

Vendor release date: May 6, 2026

Published on updatealert.io: Jun 2, 2026

Description: Collaboration endpoint operating system for Cisco room devices.

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