Few binaries are still referencing old versions of components. What does old version mean here and how to remove these old versions from Tridion? Please suggest.
Try to clarify to understand.
For example Binary Multimedia component A used in Content schema Component B in version 1 later that component updated to changed to use a different image then it becomes version 2. In this case, Binary Multimedia component A still used in Content schema Component B as an Only old version of 1.
In this case, you can go to Content Component B history and remove those old versions.
I hope it helps