I just updated my InDesign install to 20.4.1 and to my great and very pleasant surprize I found small-caps working.
Is there some changelog available for me to browse and see?
Capitalization.LOWER_CASE was added in version 20.0.
There is probably no official announcement.
I know because I get the DOM diffs myself.
In version 20, DOM has been added in 20.0, 20.2, and 20.4.
20.0
20.2
Only the ClipboardPreference.showAutoStyleOption property
20.4
All of the information is in Japanese, so please forgive any confusion.
As for Math objects, I am aware of them, but I have not mentioned them in my blog.