the pre 1.0.0 config structure has been deprecated for some time now, the migrations and deprecated proto fields related to it can be deleted.
If users still need an upgrade path, they will be be given an error indicating that they should first upgrade to a previous supporting version (that includes the pre-1.0.0 migrations) and then to the latest version. This will most likely be 1.4.0.
the pre 1.0.0 config structure has been deprecated for some time now, the migrations and deprecated proto fields related to it can be deleted.
If users still need an upgrade path, they will be be given an error indicating that they should first upgrade to a previous supporting version (that includes the pre-1.0.0 migrations) and then to the latest version. This will most likely be 1.4.0.