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The main difference between the old and the new thumbnail formats is that they are now webp files with transparency. The old thumbnails were jpeg files without transparency.

As described above, the thumbnails for existing assets are not automatically re-generated. If the existing thumbnails should be re-generated, this can be done by setting up an automation that uses the “Generate asset renditions” step with the “Force generate” flag enabled.

Things to be aware of

• After updating to 5.10, at most 200 new old media formats can be created. If you need to create an old media format after upgrading to 5.10, please reach out to RnD to share your use case. Ideally, the new transcode system should be able to accommodate your use case.

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