I think we should wait a bit with formally deprecating. I like add the new, wait a bit, then deprecate.
Also, while I might be a unconventional developer, but given this is a tier 1 library, I'm often hand patching the required ECM version to a much lower version to test stuff when I know it will work. So I'd say. Yes. nice patch, but let's wait a month or two with submitting it.
@deprecated since 5.69 Prefer preferredSize() or trueMinimumSize(). is no formal deprecation? It would be for me though, thus I am puzzled why the reader of the API dox & the compiler are differently instructed here currently. Could you elaborate? :)