What's Changed

• feat: add prometheus summary metrics by @ShyunnY in https://github.com/zeromicro/go-zero/pull/3440
• feat: support dot(.) char in form and path names in rest by @kevwan in https://github.com/zeromicro/go-zero/pull/3493
• feat: optimize mapping error by @MarkJoyMa in https://github.com/zeromicro/go-zero/pull/3438
• fix: format error should not trigger circuit breaker in sqlx by @kevwan in https://github.com/zeromicro/go-zero/pull/3437
• fix: remove mapping redundant error by @MarkJoyMa in https://github.com/zeromicro/go-zero/pull/3439
• fix: potential nil pointer errors by @kevwan in https://github.com/zeromicro/go-zero/pull/3454
• minor improvements and bug fixes

Full Changelog: https://github.com/zeromicro/go-zero/compare/v1.5.4...v1.5.5