# HyperFrames v0.8.155

By Steven Van · 2026-10-13

SDR MP4 exports lose a black edge on newer FFmpeg, while render routes accept encoder settings and distributed renders preserve CRF.

SDR MP4 exports at widths such as 1000, 1080 and 1112 no longer show a black strip along the right edge in [HyperFrames](<https://creatorstoolbox.com/resources/hyperframes>) v0.8.155. The [October 13 release](<https://hyperframes.heygen.com/changelog#hyper-frames-v0-8-155>) fixes a problem with FFmpeg 7.1 and 8.0 that turned the final eight pixel columns black when the width was eight more than a multiple of 16.

## Encoder settings on render routes

The Producer render server’s /render and /render/stream endpoints now accept crf, videoBitrate and videoFrameFormat. An invalid videoFrameFormat returns a 400 response instead of being ignored.

The Studio Server render route accepts those same settings plus hdrMode. Out-of-range values return a 400 response, and requests that combine crf with videoBitrate are rejected.

## Distributed renders preserve CRF

Distributed renders now keep the requested CRF during the constant-frame-rate re-encode. Previously, that step fell back to the quality preset.

![HyperFrames](<https://www.google.com/s2/favicons?domain=hyperframes.heygen.com&sz=128>)

HyperFrames

Open-source framework for rendering HTML compositions into MP4 videos, built for AI agents and automated pipelines.

[View HyperFrames →](<https://creatorstoolbox.com/resources/hyperframes>)

[Original source](<https://hyperframes.heygen.com/changelog#hyper-frames-v0-8-155>)

[Read HyperFrames v0.8.155 on Creators Toolbox](<https://creatorstoolbox.com/blog/hyperframes-hyperframes-v0-8-155>)

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Canonical source: https://creatorstoolbox.com/blog/hyperframes-hyperframes-v0-8-155