---
title: Media agent for Video JS v4.1.2
source: https://docs.newrelic.com/docs/release-notes/streaming-browser-release-notes/streaming-browser-agent-videojs-26-05-13
---

## Highlights

-   Added MediaTailor SSAI tracker initialization on loadstart after source load detection.
-   Added DAI stream manager support through the stream-manager event.
-   Improved bitrate reporting with:
    -   Playback bitrate (`AVERAGE-BANDWIDTH/BANDWIDTH`)
    -   Manifest max bitrate
    -   Segment download bitrate
    -   Network throughput bitrate

## Improvements

-   Refined ad and content event handling to avoid duplicate or incorrect content events while ads are active for following events:
    -   Pause/Resume
    -   Seek Start/End
    -   Buffer Start
-   Improved end-of-content handling for ad-enabled playback paths during IMA and Freewheel scenarios.
-   Added safer fallback logic for tech wrappers (`Hls.js`, `Shaka`, `contrib-hls`) when bitrate data is unavailable in VHS.

## Technical notes

-   Tracker metadata and playback context methods remain aligned with Video.js/Brightcove integrations:
    -   Retrieves the title, ID, and duration from `mediainfo` when available.
    -   Retrieves source and rendition data from the active tech component when available.
-   Updated the Listener registration and unregistration to include ad and stream manager lifecycle events.