The highest tagged major version is v4.

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Details

Valid go.mod file

The Go module system was introduced in Go 1.11 and is the official dependency management solution for Go.
Redistributable license

Redistributable licenses place minimal restrictions on how software can be used, modified, and redistributed.
Tagged version

Modules with tagged versions give importers more predictable builds.
Stable version

When a project reaches major version v1 it is considered stable.
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Path	Synopsis
kubernetes-incubator
cluster-capacity/cmd/cluster-capacity
cluster-capacity/cmd/cluster-capacity/app
cluster-capacity/cmd/cluster-capacity/app/options
cluster-capacity/cmd/genpod
cluster-capacity/cmd/genpod/app
cluster-capacity/cmd/genpod/app/options
cluster-capacity/cmd/hypercc
cluster-capacity/pkg/api
cluster-capacity/pkg/client
cluster-capacity/pkg/framework
cluster-capacity/pkg/framework/record
cluster-capacity/pkg/framework/restclient/external
cluster-capacity/pkg/framework/store
cluster-capacity/pkg/framework/strategy
cluster-capacity/pkg/framework/watch
cluster-capacity/pkg/test
cluster-capacity/pkg/utils
cluster-capacity/verify/boilerplate/test