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
Platform: Room Device
Variant: 11
Version: RoomOS 11.38.1.1
Vendor release date: May 6, 2026
Original release notes: View on vendor site
Published on updatealert.io: Jun 2, 2026
Description: Collaboration endpoint operating system for Cisco room devices.