v1.5.7-rc2

New Features

• Adding integration tests using dubbo-go-samples

Enhancement

• Performance optimization: change time.After => time.NewTimer
• Doc: Update README
• Support Key Func in ServiceEvent
• Support more parameter Settings
• Route call optimize
• Optimize conn check router
• Cluster interceptor support

Bugfixes

• Fix registry dead lock in large scale condition
• Fix issue #1320: the client may panic in generic invocation when enable application service discovery
• Fix the inconsistent filepath key logic
• Fix: when zk remoting.EventTypeAdd event send fail, need delete the path from zk listener pathmap
• Fix: zkname
• Fix: Make config center metadata configuable
• Fix: add listen routerChain when NewBaseDirectory
• Fix: as a path for pr #1225
• Fix issue 1166: treat all zk child path url as new child
• Fix: #1214 - go race detect
• Fix: generic method timeout