v4.0.532 v4.0.533
remotion-dev/remotionOct 1, 2026 → Oct 5, 20264 days between releases
What's New
Integrates ChatGPT Codex annotation system and introduces new @remotion/sdk package.
New Features
- ChatGPT Codex annotation system integration into the Studio.
- New @remotion/sdk package for building authoring interfaces.
- Allow reordering of multiple clips in the timeline.
- Infer timeline durations for <Series> and <TransitionSeries> components.
- Automatic setup of .agents and .claude directories during project creation.
Improvements
- Performance optimizations for rendering to fix progressive slowdown.
- @remotion/licensing adds idempotency keys to billable events.
- @remotion/mcp URL-encodes documentation query parameters.
- @remotion/mcp aborts documentation fetch after 10 seconds.
- Re-enable nested HTML-in-canvas support for Chrome 157.
Bug Fixes
- Fix global keyframe timing inside Series.Sequence.
- Fix progressive slowdown in long renders.
- Fix --image-sequence-pattern issue.
Upgrade Notes
Install the new @remotion/sdk package if you are building authoring interfaces. The ChatGPT Codex integration may require API key configuration. The new HtmlInCanvas.isNestingSupported() method is available for checking browser compatibility.
The Two Releases
v4.0.532
Oct 1, 2026· 21 days ago
A hotfix release correcting a broken publish from the previous version, adding UI polish for element previews and internal build process improvements.
Full release notesv4.0.533
Oct 5, 2026· 17 days ago
This release enhances the Remotion Studio with new features like ChatGPT integration and improved timeline interactions. It also includes performance optimizations for rendering and various bug fixes across the Studio and renderer packages.
Full release notes