Is it possible that the new platform version dropped WORKSPACE support

Is it possible that the new platform version dropped WORKSPACE support

It requires additional setup that isn't documented:

load("@bazel_tools//tools/build_defs/repo:utils.bzl", "maybe")
load("@platforms//host:extension.bzl", "host_platform_repo")

maybe(
	host_platform_repo,
	name = "host_platform",
)

The alternative is to load the constraints from @local_config_platform//:constraints.bzl, but that no longer works with Bazel@HEAD and the next rolling release.

Ping @apalmer-theorem