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v4.0.448

remotion-dev/remotionv4.0.448Apr 11, 2026by JonnyBurger

AI Summary

This update adds granular control over audio output sample rates and fixes CSS filter compositing issues. It also introduces the OpenAI Codex plugin and enhances studio error detection capabilities.

Key Highlights

  • Add `--sample-rate` option to control audio output sample rate
  • Fix CSS filter compositing for drop-shadow and background-clip: text
  • Detect 'Should have a queue' React hook error for auto-reload
  • Pre-decode media and schedule at most 2 seconds ahead
  • Add OpenAI Codex plugin

New Features

  • Add `--sample-rate` option to control audio output sample rate
  • Add OpenAI Codex plugin

Full Release Notes

## What's Changed
* [`@remotion/renderer`: Add `--sample-rate` option to control audio output sample rate](https://www.remotion.dev/docs/sample-rate) by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/7040
* `@remotion/renderer`: Downgrade macOS version check to a warning by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/7029
* `@remotion/studio`: Detect "Should have a queue" React hook error for auto-reload by @Copilot in https://github.com/remotion-dev/remotion/pull/7033
* `@remotion/web-renderer`: Fix CSS filter compositing for drop-shadow and background-clip: text by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/7038
* `@remotion/media`: Pre-decode and schedule at most 2 seconds ahead by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/7039
* `@remotion/codex-plugin`: Add OpenAI Codex plugin by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/7043

## Docs
* Clarify telemetry policies by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/7025
* Document macOS 13 (Ventura) as minimum supported version by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/7028
* Add "Why does my video not have sound?" troubleshooting page by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/7037

## Templates
* Update to Next.js 16.2.3 to fix CVE-2026-23869 by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/7047

## Internals
* `@remotion/studio-server`: Fix flaky file watcher tests by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/7044

**Full Changelog**: https://github.com/remotion-dev/remotion/compare/v4.0.447...v4.0.448