Wrong content for deepstream 6.3 SDK API Doc

The content in this url for Deepstream 6.3 SDK API is Deepstream 6.4
https://docs.nvidia.com/metropolis/deepstream/6.3/dev-guide/sdk-api/index.html

Is there any API wrong?

Do you mean the Deepstream 6.3 SDK Doc suppose to be totaly the same as Deepstream 6.4 SDK Doc?

Most APIs are the same. Some new APIs added for DeepStream 6.4.

Have you met any problem with the document?

Currently no problem finded.