ZEN Master 28 July 2026 Release
18 min
ZEN Master — July 28, 2026 Release Notes
The following updates will be included in the ZEN Master July 28, 2026 release.
Features
The following new features were implemented in this release:
Search
- Global search rework:
- Global search is updated to search across all object types and use frontend detailed filtering, breaking results out in the standard tables.
- Networks are now included in global search results.
- Implemented Preset Filters for Simplified Table Search Experience:
- Standard searched filters can now be saved as presets which persist across sessions and browsers.
- Saved filters can be private or made public for wider use.
Channel Switching
- Channel Switching button added to Target grids.
Transport & Processing
- UDP/RTP Target remux settings in ZM UI and API.
- Remux support on Error Concealment sources.
- Display and select SRT version on Sources/Targets:
- Added option to select SRT library version on Sources/Targets. Note - requires version 19 and the selection is not enforced when version is not available.
- Version selection is available in the Advanced section of the edit dialog.
- "Bind to local NIC by CIDR" added to Zixi PUSH and SRT Caller Targets (parity with UDP/RTP).
- "Discontinuity on CUE" flag added to adaptive/transcoded channels:
- Exposed new "Discontinuity on CUE" flag on Transcoded/Adaptive Channels to provide platform parity.
- Flag is available in advanced section of the dialog and the ZEN Master setting is propagated to the Broadcaster.
- Rendition sort control on Transcode and Adaptive Channel ladders.
- New Adaptive Group option to insert HLS PDT when using SEI timecode (Hotfixed):
- Added Segmentation Time option to Adaptive Channel "Timecode (EXT-X-PROGRAM-DATE-TIME) Source".
- Cluster-level control to enable/disable PID 23 metadata injection, in the Advanced section of the cluster edit dialog. (Metadata injection is enabled by default.)
- NETINT transcoding card support provided with profiles for Broadcaster Version 19. Current NETINT options include:
- 8 Bit or 10 Bit PP
- 420 chroma subsampling
- Decode / Scale / Encode
Cloud and Infrastructure
- Multi-select for Broadcaster migration tools - Upgrade, Refresh, AWS SSM (at the cluster level).
- Added support for g6.2xl to g6.12xl instance types in ZEN Master.
- Managed AWS Nvidia cluster instances now launch with the latest validated AWS Linux 2023 AMI.
- ZEN Master tags now propagate to all AWS resources on cluster/BX creation.
- Dropdown list of Elastic IPs when selecting EIP reservation IDs.
- Network settings editing disabled in the Broadcaster UI for machines in managed AWS, GCP, or Azure deployments.
Auth and Security
- PKCE SSO support for OAuth 2.0 login.
Failover
- Added "Source became inactive" event log for Failover Sources.
- Lock / Unlock control added to the in-diagram context menu for Failover Sources.
Additional Improvements and Changes
The following additional improvements and changes were implemented in this release:
- Added SSM command execution logging — who ran it, timestamp, and the script executed.
- Added lifecycle logging for SSH tunnel keys.
- Enabled Event Log download for users with read access.
- Added a log entry confirming Live Clip insertion via the Live Events workflow.
- Added optional toggles to clone Tasks and/or Schedules when cloning an Automation.
- Added a landing page redirecting OnAir share links to the app.
- Extended the Broadcaster restart detection window to capture restarts with downtime over ~30 seconds.
- Object page layout controls moved to dropdown.
- Added button to fit widget height to content.
- Transcode profile logo insertion now shows a UI preview of logo placement.
- Look and feel layout improvements to ZEN Master's VLC player page.
- Updated DTLS encryption icon.
ESNI
- Added a button to re-trigger all currently active policies in the ESNI schedule view.
- Added a Target "Sync with ESNI schedule" button to manually sync an ESNI-controlled Target with its schedule.
- Re-fire already-active policy actions to re-apply SCTE-35 content IDs and similar signal actions.
- ESNI as-run report export.
SCTE
- SCTE-35 modification: "Select from MID" operation allowing selection of specific UPID from a MID type UPID to pass on to downstream.
API
The following API additions and changes are included in this release:
Technical Reference
- For a detailed technical reference on field changes, see the accompanying document in the Customer Portal:
- ZEN-Master-API-Updates-Reference-2026-07-28
New API Methods
- SCTE-35 Profiles: to the existing endpoint, added methods:
- POST /scte35_modification_profiles
- GET by ID, PUT, DELETE /scte35_modification_profiles/:scte35ProfileId
API Field Additions/Updates
- Access Keys, Events Profiles, PID Mapping, Tags, Transcoding Profiles:
- Added name query parameters for efficient use.
- Channels, Targets:
- Added functionality for the name query parameter.
- Channels, Sources, Targets:
- Added Billing Channel ID.
- Field: billing_tag.
- Transcoded Channels.
- Sources: All except NDI, Monitor Only.
- Targets: HTTP, RIST, RTMP, SRT, UDP/RTP, Zixi Pull/Push.
- Clusters:
- Added Billing Channel ID.
- Fields: inputs_billing_tag, outputs_billing_tag.
- Sources:
- New filters for GET /sources.
- Added type query parameter to filter by Source type.
- Added cluster_id query parameter to filter by Cluster.
- Sources, Channels:
- Remux support for Error Concealment.
- Added error_concealment_remux_mode.
- Added error_concealment_remux_buff_size_ms.
- Added error_concealment_smoothing_ms.
- Sources: Demux, Failover, HLS, Inter-Cluster, Multiplex, Multiplex SPTS, RIST, RTMP, SRT, UDP/RTP, Zixi Pull.
- Channels: Failover (deprecated).
- Targets UDP/RTP:
- Remux settings from the Broadcaster.
- Added remux_pcr_interval.
- Added remux_buffer_ms.
- Added remux_disable_padding.
Documentation Only
- Failover Channels: deprecated endpoints will be removed in a future release:
- PUT /channels/failover/{channelId}/components/{componentSourceId}
- GET, POST /channels/failover
- GET, PUT, DELETE /channels/failover/{channelId}
- GET /channels - response will no longer include Failover Channels.
- Failover Channel Objects: deprecated objects will be removed in a future release:
- GET, POST, PUT /live_events
- failover_channel_ids, failoverChannels.
- POST /live_events/{eventId}/stages/{stageName}
- FailoverChannels.
ESNI
- Signal on remove in ESNI schedule view:
- Updated ESNI schedule view to display triggering signal when a Remove activates a new policy.
- Support PT0S for signalTolerance.
- Scope UPID Format to Media.
- Don't fail on missing timestamps in simulation:
- Updated ESNI simulation engine to support MatchSignal only schedules.
- ESNI future capped to 24hrs.
- Signal and raw popup optimization.
SCTE
- ZM support for SCTE35 insertion on Zixi Push sources.
- Match Target SCTE log UI to that of Source SCTE log:
- Added SCTE-35 history graphs on Targets.
- SCTE-35 modification: allow changes before a Create rule:
- SCTE-35 create rules now apply in order.
- Improve error handling on SCTE-35 modification simulation UI.
- "Install SCTE-35 Modification Agent" button now installs to the same directory as a manual install:
- Updated SCTE-35 Modification agent install folder to match manual install.
- Manual Channel Switching for POIS enabled Targets:
- Added Channel Switching support for POIS enabled targets when assigned to channels with a single Source.
- SCTE35 parser XML builder drops Avail Descriptor:
- Fixed MIST being unable to create Avail Descriptors in modified/created SCTE-35 signals.
- SCTE-35 modification: selecting "No UPID" on Create type 5 to 6 fails:
- Fixed SCTE-35 encoding error when creating a type 6 with "No UPID".
- SCTE-35 source graph collapses Time Signal events:
- Fixed all Type 6 (TimeSignal) SCTE-35 messages graphed as a single type.
- POIS output and loopback not being created:
- Fixed Target creation when using loopbacks silently failing due to port conflicts. Note - for UDP/RTP, RIST, and SRT client v19.0 broadcaster is required.
Licensing and Usage
- License and Measure: new "Channel ID" field in UI and API:
- New "Billing Channel ID" field in UI and API to support new channel-based usage tracking.
- Usage reporting backend support for new counters in v19:
- The metrics include input quantity, output quantity, and transcode quantity.