In release 5.10, the old transcode system is replaced with a new transcode system.
The new transcode system has been written from scratch and is much easier to configure than the old transcode system. The main capabilities of the new transcode system are described here.
When upgrading existing environments to 5.10, the new transcode system is automatically used as much as possible. The old transcode system can still be used in 5.10 but will be deprecated in later releases. Thus, it is highly advised to start using the new transcode system.
This page describes the main things to be aware of when migrating to the new transcode system.
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 the use case. Ideally, the new transcode system should be able to accommodate the use-case.