v0.4.0

What's Changed

• feat(circuitbreak): support config circuitbreak policy with xds by @whalecold in #29
• feat(limit): support limit config by @whalecold in #30
• feat: support retry integration with istio by @whalecold in #31
• chore: update version & rm useless file & fix printf-style issue by @GuangmingLuo in #32

New Contributors

• @GuangmingLuo made their first contribution in #32

Full Changelog: v0.3.0...v0.4.0