# HyperFrames v0.8.167

By Steven Van · 2026-10-17

Release 0.8.167 makes previews of long projects lighter and keeps bundling from blocking the host app, plus a fix for page-load timeouts on busy machines.

Long projects should now preview more smoothly in [HyperFrames](<https://creatorstoolbox.com/resources/hyperframes>). The preview runtime's work follows what is playing, not the total number of clips in the film. Bundling a project also no longer freezes the app that runs it. The changes are in [v0.8.167](<https://hyperframes.heygen.com/changelog#hyper-frames-v0-8-167>).

## Preview performance

- Preview runtime scales with what plays, not with the film's clip count.

- A preview's composition scripts give the page a turn every 50 ms, instead of running as one long task.

- A clip inside a later scene is held at 0 until it is due.

- Lint strips stylesheet comments once per canvas zoom scan.

## Fixes

- Core: bundling a project no longer blocks the host's thread on esbuild.

- CLI: page loads stop timing out while Chrome warms up on a busy machine.

The release also includes an internal change to a CLI caption image test, which now checks the close itself instead of a reusable file number.

![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-v0-8-167>)

[Read HyperFrames v0.8.167 on Creators Toolbox](<https://creatorstoolbox.com/blog/hyperframes-hyperframes-v0-8-167>)

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Canonical source: https://creatorstoolbox.com/blog/hyperframes-hyperframes-v0-8-167