I can't tell you the story behind the missing LinkProperties
, but I can tell you that it is likely safe to continue using DhcpInfo
until a suitable replacement is provided.
Even though DhcpInfo is deprecated, it will almost certainly continue working for the foreseeable future, and you clearly cannot replace it with LinkProperties yet.
There is a similar issue in the AOSP issue tracker, though you may want to open a new ticket for the entire DhcpInfo class.