# HyperFrames v0.8.15

By Steven Van · 2026-08-26

Preview publishers can now use the same deterministic font resolver as final renders, preventing CSS case transforms from changing typography between…

[HyperFrames](<https://creatorstoolbox.com/resources/hyperframes>) **v0.8.15** gives preview publishers the same deterministic font resolver used in final renders, so CSS case transforms no longer produce different typography in preview versus the exported video.

- Rendering now exits stalled parallel capture paths instead of hanging.

- Template editing handles promoted media slots more safely, with documentation for safe default editing.

- JSON attribute linting now decodes encoded attribute values correctly.

- The large-file guard in scripts no longer fires on text files.

See the [full changelog](<https://hyperframes.heygen.com/changelog#hyper-frames-v0-8-15>) for the underlying font localizer and CLI changes.

[![](<https://hyperframes.mintlify.app/mintlify-assets/_next/image?url=%2F_mintlify%2Fapi%2Fog%3Fdivision%3DExplore%26title%3DChangelog%26description%3DRelease%2Bnotes%2Bfor%2BHyperFrames.%26theme%3D41cebf3c175d80194b1a40be&w=1200&q=100>)](<https://hyperframes.heygen.com/changelog#hyper-frames-v0-8-15>)

![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-v0-8-15>)

[Read HyperFrames v0.8.15 on Creators Toolbox](<https://creatorstoolbox.com/blog/hyperframes-hyperframes-v0-8-15>)

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Canonical source: https://creatorstoolbox.com/blog/hyperframes-hyperframes-v0-8-15