New Features

• feat(loadbalancing): add client load balancing and router selector (#1485)
• feat(auth): add jwt auth middleware (#1274)
• feat(circuitbreaker): add client side circuit breaker middleware (#1299)
• feat(ratelimit): add server side rate limiter middleware (#1271)
• feat(registry): support discovery registry center (#1480)
• feat(log): default message key (#1545)
• feat(config): add config slice map support (#1538)
• feat: add backupConfigPath method (#1511)

Bug Fixes

• fix consul registry TTL. (#1537)
• fix:etcd prifex find error (#1507)
• fix:http server start panic when use Endpoint (#1492)

Dependencies

• deps: otel upgrade to v1.0.0 (#1500)
• deps: update go version to 1.16 (#1536)

Other

• log.SpanID -> tracing.SpanID
• log.TraceID -> tracing.TraceID