A major version v4 release of circuit library. See the changes in this PR: #121
For an up to date guide on upgrading v3 -> v4, see https://github.com/cep21/circuit/blob/master/UPGRADE_GUIDE.md.
A short list of changes are:
- Drop support for Gopkg.toml
- Remove the "/v3" root directory
- Move statsd implementation to another library
- Add ctx to the stats interfaces
- Move benchmarks to their own repo
- Use Go's built in atomic package
- Add upgrade guide