# RTMS September release

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## Added

-   Zoom for Government RTMS Support
    -   Enabled support for RTMS for ZfG customers
-   Mobile Client RTMS Support
    -   Added RTMS support to iOS and Android mobile clients
-   Auto Open JavaScript API
    -   Exposed a new method in the JavaScript SDK to programmatically control the auto-open setting
-   Active Users Video Update
    -   Added capability for active users to successfully decode frames when they turn their video back on
-   Default Source Language for Transcripts
    -   Added support for app clients to set a default source language for transcripts, in the first 30 seconds, the transcript will be based on the language which is set by app client. The language will still be auto-detected after 30 seconds and will override this field.
-   App Client Failover
    -   Added new handshake request for client-initiated failover requests
-   New `id_field` field in the following **Notifications** webhook events:
    -   `rtms.concurrency_limited`

### Enhancements

-   Active Video User ID Logic
    -   Fixed an issue where the system would incorrectly display the previous active speaker's 'user_name` when another participant became the active speaker
-   Auto Start RTMS Support for Failover
    -   Improved logic for when the original host drops from a meeting due to a network interruption or other client issue and then rejoins the meeting.
        The original host's RTMS app must have auto-start enabled.
-   Telephony Client User Support
    -   Fixed an issue affecting telephony users and the RTMS server now checks user type and replaces audio packet user ID with client user ID