Release notes
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Apr 28, 2026 — MSL5 Production Release

about 2 hours ago

This release features updates to MSL Origin, MSL Portal, and MSL Portal API. These updates deliver significant new capabilities including Low-Latency HLS live egress, primary and backup ingest redundancy, customer-controlled manifest passthrough, and expanded log export support. It also introduces alert management and log export configuration UIs in the portal, along with targeted bug fixes and infrastructure reliability improvements.

MSL Portal updates

  • Alert Management. Added support for creating and managing alerts for bitrate deviation for a specific stream bitrate.
  • HTTP Ingest Log Export Configuration. Added a portal UI for configuring HTTP ingest log export destinations and associating individual streams for per-stream log delivery.

MSL Origin updates

  • Added support for Low-Latency HLS (LL-HLS).
  • HTTP Ingest Log Export. Added the ability to push HTTP ingest logs to customer-configured destinations,
    supporting Akamai Object Storage and AWS S3, with customizable log paths and formats; includes a portal UI for configuring destinations and per-stream log delivery.
  • Manifest Passthrough for Live Egress. Added support for playlist passthrough for live streams, enabling direct, unmodified manifest delivery without any manifest manipulation. For Instant TV and Live2VOD workflows, MSL5 standardizes manifest formatting to a common schema that is fully standards-compliant and functionally
    equivalent to the source output.
  • Primary & Backup Ingest Redundancy. Added support for redundant ingest entrypoints with a single primary origin, allowing clients to fail over seamlessly to backup content paths.
  • Improved Live-to-Live Resilience. Enhanced MSL Origin fault tolerance for Live-to-Live workflows against
    object storage outages, reducing the impact on live stream availability, archive content accessibility, and overall
    system reliability.
  • Monitoring & Alerting. Refined ingest latency alert aggregation logic from max-based to average-based calculation, reducing false alerts triggered by isolated high-latency requests when the majority of ingest traffic is healthy.
  • Playback & Content. Fixed Live2VOD 404 “Dash manifest not found” errors occurring when republishing events that switch from number-based manifests (without timeline) to time-based manifests (with timeline) for CMAF-DASH output.